Home Explore Help
Sign In
mirrors
/
mailcow-dockerized
mirror of https://github.com/mailcow/mailcow-dockerized
2
0
Fork 0
Files Issues 0 Wiki
Tree: ee6989bd1d
Branches Tags
mailcow-dockeri...
/
data
/
web
/
inc
/
lib
/
WebAuthn
/
Attestation
/
Format
/
U2f.php

U2f.php 126 KB
History Raw

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141151161171181191201211221231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621631641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152162172182192202212222232242252262272282292302312322332342352362372382392402412422432442452462472482492502512522532542552562572582592602612622632642652662672682692702712722732742752762772782792802812822832842852862872882892902912922932942952962972982993003013023033043053063073083093103113123133143153163173183193203213223233243253263273283293303313323333343353363373383393403413423433443453463473483493503513523533543553563573583593603613623633643653663673683693703713723733743753763773783793803813823833843853863873883893903913923933943953963973983994004014024034044054064074084094104114124134144154164174184194204214224234244254264274284294304314324334344354364374384394404414424434444454464474484494504514524534544554564574584594604614624634644654664674684694704714724734744754764774784794804814824834844854864874884894904914924934944954964974984995005015025035045055065075085095105115125135145155165175185195205215225235245255265275285295305315325335345355365375385395405415425435445455465475485495505515525535545555565575585595605615625635645655665675685695705715725735745755765775785795805815825835845855865875885895905915925935945955965975985996006016026036046056066076086096106116126136146156166176186196206216226236246256266276286296306316326336346356366376386396406416426436446456466476486496506516526536546556566576586596606616626636646656666676686696706716726736746756766776786796806816826836846856866876886896906916926936946956966976986997007017027037047057067077087097107117127137147157167177187197207217227237247257267277287297307317327337347357367377387397407417427437447457467477487497507517527537547557567577587597607617627637647657667677687697707717727737747757767777787797807817827837847857867877887897907917927937947957967977987998008018028038048058068078088098108118128138148158168178188198208218228238248258268278288298308318328338348358368378388398408418428438448458468478488498508518528538548558568578588598608618628638648658668678688698708718728738748758768778788798808818828838848858868878888898908918928938948958968978988999009019029039049059069079089099109119129139149159169179189199209219229239249259269279289299309319329339349359369379389399409419429439449459469479489499509519529539549559569579589599609619629639649659669679689699709719729739749759769779789799809819829839849859869879889899909919929939949959969979989991000100110021003100410051006100710081009101010111012101310141015101610171018101910201021102210231024102510261027102810291030103110321033103410351036103710381039104010411042104310441045104610471048104910501051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120112111221123112411251126112711281129113011311132113311341135113611371138113911401141114211431144114511461147114811491150115111521153115411551156115711581159116011611162116311641165116611671168116911701171117211731174117511761177117811791180118111821183118411851186118711881189119011911192119311941195119611971198119912001201120212031204120512061207120812091210121112121213121412151216121712181219122012211222122312241225122612271228122912301231123212331234123512361237123812391240124112421243124412451246124712481249125012511252125312541255125612571258125912601261126212631264126512661267126812691270127112721273127412751276127712781279128012811282128312841285128612871288128912901291129212931294129512961297129812991300130113021303130413051306130713081309131013111312131313141315131613171318131913201321132213231324132513261327132813291330133113321333133413351336133713381339134013411342134313441345134613471348134913501351135213531354135513561357135813591360136113621363136413651366136713681369137013711372137313741375137613771378137913801381138213831384138513861387138813891390139113921393139413951396139713981399140014011402140314041405140614071408140914101411141214131414141514161417141814191420142114221423142414251426142714281429143014311432143314341435143614371438143914401441144214431444144514461447144814491450145114521453145414551456145714581459146014611462146314641465146614671468 
  1. 

  2. 

  3. 

  4. 

  5. 

  6. 

  7. <!DOCTYPE html>
    8. 

  8. <html lang="en">
    9. 

  9.   <head>
    10. 

  10.     <meta charset="utf-8">
    11. 

  11.   <link rel="dns-prefetch" href="https://github.githubassets.com">
    12. 

  12.   <link rel="dns-prefetch" href="https://avatars0.githubusercontent.com">
    13. 

  13.   <link rel="dns-prefetch" href="https://avatars1.githubusercontent.com">
    14. 

  14.   <link rel="dns-prefetch" href="https://avatars2.githubusercontent.com">
    15. 

  15.   <link rel="dns-prefetch" href="https://avatars3.githubusercontent.com">
    16. 

  16.   <link rel="dns-prefetch" href="https://github-cloud.s3.amazonaws.com">
    17. 

  17.   <link rel="dns-prefetch" href="https://user-images.githubusercontent.com/">
    18. 

  18. 

  19. 

  20. 

  21.   <link crossorigin="anonymous" media="all" integrity="sha512-BSy+E+S5PJuDWKcXiIXBoFJ7uJ+88y6hFdIhZpf7nf9MVNVvnJDPUaotaxFUQi8UXCLJOcGv1uifxVMc9o5DYQ==" rel="stylesheet" href="https://github.githubassets.com/assets/frameworks-052cbe13e4b93c9b8358a7178885c1a0.css" />
    22. 

  22.   <link crossorigin="anonymous" media="all" integrity="sha512-tuayzhY7bkBEq/qU4J930ofI//FEC8Na42y8grGUvaSDLLvJi8/hbKbZ7zxph9o0cZecDALcD+Ks9ppE9YmS5w==" rel="stylesheet" href="https://github.githubassets.com/assets/site-b6e6b2ce163b6e4044abfa94e09f77d2.css" />
    23. 

  23.     <link crossorigin="anonymous" media="all" integrity="sha512-zZEYWrT2WyrAqN2Nm29ttIz36AXxSxE+Mf4ARvtJCQrVVOFpnh0nRYu5fbAjtXXTRBDytc8BGLPA7sCsjvGQLw==" rel="stylesheet" href="https://github.githubassets.com/assets/github-cd91185ab4f65b2ac0a8dd8d9b6f6db4.css" />
    24. 

  24.     
    25. 

  25.     
    26. 

  26.     
    27. 

  27.     
    28. 

  28. 

  29.   <script crossorigin="anonymous" defer="defer" integrity="sha512-8K2vvwbW+6H27Nad5ydg8PA2/aMD/LKq+EiK9s0U0hhVZxCI2tWBsYk9beAtisRw2j+Or5k2/F+6dk02nmj/PA==" type="application/javascript" src="https://github.githubassets.com/assets/environment-f0adafbf.js"></script>
    30. 

  30.     <script crossorigin="anonymous" defer="defer" integrity="sha512-bf3k8Y60Hljk6JoJikJwUktgpWsNM3NEnNgmlScAD6u57WAUEgCSZh5BsU5ls8YxsL8cZUaKGHC5fsf143pfaw==" type="application/javascript" src="https://github.githubassets.com/assets/chunk-frameworks-6dfde4f1.js"></script>
    31. 

  31.     <script crossorigin="anonymous" defer="defer" integrity="sha512-TZfq2T+XE31Mcp17bGlABjjeQ/69IH2f/sBvS31c4Jua0e1O/NE+aVbQtItMM2GFlmeEm13p/zyyWGIx10jVKQ==" type="application/javascript" src="https://github.githubassets.com/assets/chunk-vendor-4d97ead9.js"></script>
    32. 

  32.   
    33. 

  33.   <script crossorigin="anonymous" defer="defer" integrity="sha512-gkZCpFyYrX7ycwoeUW7Wyk7sg8OBhVVIA5gFuJfzX3jZcu1jiTPWWM749XEjX9pILro9F5+l+WUfz/MUpAwI0w==" type="application/javascript" src="https://github.githubassets.com/assets/behaviors-824642a4.js"></script>
    34. 

  34.   
    35. 

  35.     <script crossorigin="anonymous" defer="defer" integrity="sha512-F/8sNCLF603gJL0egQeZwFTYP9dfZAVEWHdjMssZ2opLZXRK08vgowBRzKyra6u9zU/rGVxe+igfJsSWzfO2lg==" type="application/javascript" data-module-id="./chunk-contributions-spider-graph.js" data-src="https://github.githubassets.com/assets/chunk-contributions-spider-graph-17ff2c34.js"></script>
    36. 

  36.     <script crossorigin="anonymous" defer="defer" integrity="sha512-obMR8mPKx8OvqRe34LgnUcxeJ1qujiA4ND3H6UX13ExMlA/WfHLjEzXRmgGRcRvN/8J1nzc+Z+jgz/PLTFy6zg==" type="application/javascript" data-module-id="./chunk-drag-drop.js" data-src="https://github.githubassets.com/assets/chunk-drag-drop-a1b311f2.js"></script>
    37. 

  37.     <script crossorigin="anonymous" defer="defer" integrity="sha512-AVtc/43rg+h7XgMPOa+baO1Fj+uiMUrLHd16U6+c6Tk7atk70Ux4IcGRPOHqMv422QIJD7l7BhG2PL4G/tUVKg==" type="application/javascript" data-module-id="./chunk-jump-to.js" data-src="https://github.githubassets.com/assets/chunk-jump-to-015b5cff.js"></script>
    38. 

  38.     <script crossorigin="anonymous" defer="defer" integrity="sha512-biWH4OAQPiDiTkaeyDnXf6hHF3u3Mv3eaDEvt8AdT/QvWDpLbnusALT4ZO+f+DgYp07UiHxNRAB6/J7IwPW6TQ==" type="application/javascript" data-module-id="./chunk-lib.dev.js" data-src="https://github.githubassets.com/assets/chunk-lib.dev-6e2587e0.js"></script>
    39. 

  39.     <script crossorigin="anonymous" defer="defer" integrity="sha512-tcH4xCRuMBAh1PruDaiwGnRIbHlF6bGLhxyCQ16uqok1cV5QFMguVPWJtN9KI0jGQOgN+Pha3+uOUXhXdfK/qw==" type="application/javascript" data-module-id="./chunk-profile-pins-element.js" data-src="https://github.githubassets.com/assets/chunk-profile-pins-element-b5c1f8c4.js"></script>
    40. 

  40.     <script crossorigin="anonymous" defer="defer" integrity="sha512-E+H+wAtjiqutBvn2cnXzDIvmasIhYiS7i7JzOfFUwo+Ej8zT54OrJtP//RhwixnypgOpCF4JvqzYy6zOtORDmg==" type="application/javascript" data-module-id="./chunk-runner-groups.js" data-src="https://github.githubassets.com/assets/chunk-runner-groups-13e1fec0.js"></script>
    41. 

  41.     <script crossorigin="anonymous" defer="defer" integrity="sha512-rIWotuwsYxV+jXNuevOVsulW2zsw98Gi4j7KXrJZq+bWFV86Y/R75+1jMjt5k1MPgabdTPpWPI/IoESZhah9ng==" type="application/javascript" data-module-id="./chunk-sortable-behavior.js" data-src="https://github.githubassets.com/assets/chunk-sortable-behavior-ac85a8b6.js"></script>
    42. 

  42.     <script crossorigin="anonymous" defer="defer" integrity="sha512-ZBICwPA18KYIgHbafqdjnTkxoCSNf/39rTlupkrtdpIWizECoux0ROzjAgyAx20Bf27VfshuBqrYwDqOVftyag==" type="application/javascript" data-module-id="./chunk-tweetsodium.js" data-src="https://github.githubassets.com/assets/chunk-tweetsodium-641202c0.js"></script>
    43. 

  43.     <script crossorigin="anonymous" defer="defer" integrity="sha512-QUtHMb3mxbE2DQSQZb9+tK8ZC2m05FFqZOa5ju2Sj0GdiQV+ce/bnIK/YwoMdty44NEhEIkZUIyh9DqLMsRedg==" type="application/javascript" data-module-id="./chunk-user-status-submit.js" data-src="https://github.githubassets.com/assets/chunk-user-status-submit-414b4731.js"></script>
    44. 

  44.   
    45. 

  45.   <script crossorigin="anonymous" defer="defer" integrity="sha512-B+TgAy+wlZmUjsDcWKt55BrTpxxZDolcD9v47x25Ue46lVb9c0n1tRz+BjjSeC4CuN9M3psDUpBhsr1aFKpFCw==" type="application/javascript" src="https://github.githubassets.com/assets/repositories-07e4e003.js"></script>
    46. 

  46. <script crossorigin="anonymous" defer="defer" integrity="sha512-Dl4JXoI2igFuQLn6MCPPgiS7TVx3c0/G8iaIZCNzgGi4Iwg8TC0y4LPT584yJ+r6ZsF5QIFL9uo+nhHdBvfLNQ==" type="application/javascript" src="https://github.githubassets.com/assets/diffs-0e5e095e.js"></script>
    47. 

  47. 

  48.   <meta name="viewport" content="width=device-width">
    49. 

  49.   
    50. 

  50.   <title>WebAuthn/U2f.php at master · lbuchs/WebAuthn · GitHub</title>
    51. 

  51.     <meta name="description" content="A simple PHP WebAuthn (FIDO2) server library. Contribute to lbuchs/WebAuthn development by creating an account on GitHub.">
    52. 

  52.     <link rel="search" type="application/opensearchdescription+xml" href="/opensearch.xml" title="GitHub">
    53. 

  53.   <link rel="fluid-icon" href="https://github.com/fluidicon.png" title="GitHub">
    54. 

  54.   <meta property="fb:app_id" content="1401488693436528">
    55. 

  55.   <meta name="apple-itunes-app" content="app-id=1477376905" />
    56. 

  56.     <meta name="twitter:image:src" content="https://avatars1.githubusercontent.com/u/37619779?s=400&amp;v=4" /><meta name="twitter:site" content="@github" /><meta name="twitter:card" content="summary" /><meta name="twitter:title" content="lbuchs/WebAuthn" /><meta name="twitter:description" content="A simple PHP WebAuthn (FIDO2) server library. Contribute to lbuchs/WebAuthn development by creating an account on GitHub." />
    57. 

  57.     <meta property="og:image" content="https://avatars1.githubusercontent.com/u/37619779?s=400&amp;v=4" /><meta property="og:site_name" content="GitHub" /><meta property="og:type" content="object" /><meta property="og:title" content="lbuchs/WebAuthn" /><meta property="og:url" content="https://github.com/lbuchs/WebAuthn" /><meta property="og:description" content="A simple PHP WebAuthn (FIDO2) server library. Contribute to lbuchs/WebAuthn development by creating an account on GitHub." />
    58. 

  58. 

  59. 

  60. 

  61.     
    62. 

  62. 

  63.   <link rel="assets" href="https://github.githubassets.com/">
    64. 

  64.   
    65. 

  65. 

  66.   <meta name="request-id" content="9E92:4939:66CE6B4:927EDD8:5FF2E997" data-pjax-transient="true"/><meta name="html-safe-nonce" content="7542a9b892db023c2b9745385a8d153039033cedf47b1573318c1c5f43430e1a" data-pjax-transient="true"/><meta name="visitor-payload" content="eyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiI5RTkyOjQ5Mzk6NjZDRTZCNDo5MjdFREQ4OjVGRjJFOTk3IiwidmlzaXRvcl9pZCI6IjE1NTE1NTUxMzM0MDM0OTA3MTEiLCJyZWdpb25fZWRnZSI6ImZyYSIsInJlZ2lvbl9yZW5kZXIiOiJmcmEifQ==" data-pjax-transient="true"/><meta name="visitor-hmac" content="d552c3c83a273d68ee0537231b5365a51683433d08c4275be5df83b0c7f39fa6" data-pjax-transient="true"/>
    67. 

  67. 

  68.     <meta name="hovercard-subject-tag" content="repository:149437753" data-pjax-transient>
    69. 

  69. 

  70. 

  71.   <meta name="github-keyboard-shortcuts" content="repository,source-code" data-pjax-transient="true" />
    72. 

  72. 

  73.   
    74. 

  74. 

  75.   <meta name="selected-link" value="repo_source" data-pjax-transient>
    76. 

  76. 

  77.     <meta name="google-site-verification" content="c1kuD-K2HIVF635lypcsWPoD4kilo5-jA_wBFyT4uMY">
    78. 

  78.   <meta name="google-site-verification" content="KT5gs8h0wvaagLKAVWq8bbeNwnZZK1r1XQysX3xurLU">
    79. 

  79.   <meta name="google-site-verification" content="ZzhVyEFwb7w3e0-uOTltm8Jsck2F5StVihD0exw2fsA">
    80. 

  80.   <meta name="google-site-verification" content="GXs5KoUUkNCoaAZn7wPN-t01Pywp9M3sEjnt_3_ZWPc">
    81. 

  81. 

  82.   <meta name="octolytics-host" content="collector.githubapp.com" /><meta name="octolytics-app-id" content="github" /><meta name="octolytics-event-url" content="https://collector.githubapp.com/github-external/browser_event" />
    83. 

  83. 

  84.   <meta name="analytics-location" content="/&lt;user-name&gt;/&lt;repo-name&gt;/blob/show" data-pjax-transient="true" />
    85. 

  85. 

  86.   
    87. 

  87. 

  88. 

  89. 

  90.   <meta name="optimizely-datafile" content="{&quot;version&quot;: &quot;4&quot;, &quot;rollouts&quot;: [], &quot;typedAudiences&quot;: [], &quot;anonymizeIP&quot;: true, &quot;projectId&quot;: &quot;16737760170&quot;, &quot;variables&quot;: [], &quot;featureFlags&quot;: [], &quot;experiments&quot;: [{&quot;status&quot;: &quot;Running&quot;, &quot;audienceIds&quot;: [], &quot;variations&quot;: [{&quot;variables&quot;: [], &quot;id&quot;: &quot;19512260014&quot;, &quot;key&quot;: &quot;separate_plans_and_usage&quot;}, {&quot;variables&quot;: [], &quot;id&quot;: &quot;19509770036&quot;, &quot;key&quot;: &quot;control&quot;}], &quot;id&quot;: &quot;19536000020&quot;, &quot;key&quot;: &quot;account_billing_plans_and_usage&quot;, &quot;layerId&quot;: &quot;19545220022&quot;, &quot;trafficAllocation&quot;: [{&quot;entityId&quot;: &quot;19509770036&quot;, &quot;endOfRange&quot;: 2500}, {&quot;entityId&quot;: &quot;&quot;, &quot;endOfRange&quot;: 5000}, {&quot;entityId&quot;: &quot;19512260014&quot;, &quot;endOfRange&quot;: 7500}, {&quot;entityId&quot;: &quot;&quot;, &quot;endOfRange&quot;: 10000}], &quot;forcedVariations&quot;: {&quot;1238720267648ea2c88a74b410aa3c5c&quot;: &quot;separate_plans_and_usage&quot;}}], &quot;audiences&quot;: [{&quot;conditions&quot;: &quot;[\&quot;or\&quot;, {\&quot;match\&quot;: \&quot;exact\&quot;, \&quot;name\&quot;: \&quot;$opt_dummy_attribute\&quot;, \&quot;type\&quot;: \&quot;custom_attribute\&quot;, \&quot;value\&quot;: \&quot;$opt_dummy_value\&quot;}]&quot;, &quot;id&quot;: &quot;$opt_dummy_audience&quot;, &quot;name&quot;: &quot;Optimizely-Generated Audience for Backwards Compatibility&quot;}], &quot;groups&quot;: [], &quot;attributes&quot;: [{&quot;id&quot;: &quot;16822470375&quot;, &quot;key&quot;: &quot;user_id&quot;}, {&quot;id&quot;: &quot;17143601254&quot;, &quot;key&quot;: &quot;spammy&quot;}, {&quot;id&quot;: &quot;18175660309&quot;, &quot;key&quot;: &quot;organization_plan&quot;}, {&quot;id&quot;: &quot;18813001570&quot;, &quot;key&quot;: &quot;is_logged_in&quot;}, {&quot;id&quot;: &quot;19073851829&quot;, &quot;key&quot;: &quot;geo&quot;}], &quot;botFiltering&quot;: false, &quot;accountId&quot;: &quot;16737760170&quot;, &quot;events&quot;: [{&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;17911811441&quot;, &quot;key&quot;: &quot;hydro_click.dashboard.teacher_toolbox_cta&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18124116703&quot;, &quot;key&quot;: &quot;submit.organizations.complete_sign_up&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18145892387&quot;, &quot;key&quot;: &quot;no_metric.tracked_outside_of_optimizely&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18178755568&quot;, &quot;key&quot;: &quot;click.org_onboarding_checklist.add_repo&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18180553241&quot;, &quot;key&quot;: &quot;submit.repository_imports.create&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18186103728&quot;, &quot;key&quot;: &quot;click.help.learn_more_about_repository_creation&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18188530140&quot;, &quot;key&quot;: &quot;test_event.do_not_use_in_production&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18191963644&quot;, &quot;key&quot;: &quot;click.empty_org_repo_cta.transfer_repository&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18195612788&quot;, &quot;key&quot;: &quot;click.empty_org_repo_cta.import_repository&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18210945499&quot;, &quot;key&quot;: &quot;click.org_onboarding_checklist.invite_members&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18211063248&quot;, &quot;key&quot;: &quot;click.empty_org_repo_cta.create_repository&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18215721889&quot;, &quot;key&quot;: &quot;click.org_onboarding_checklist.update_profile&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18224360785&quot;, &quot;key&quot;: &quot;click.org_onboarding_checklist.dismiss&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18234832286&quot;, &quot;key&quot;: &quot;submit.organization_activation.complete&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18252392383&quot;, &quot;key&quot;: &quot;submit.org_repository.create&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18257551537&quot;, &quot;key&quot;: &quot;submit.org_member_invitation.create&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18259522260&quot;, &quot;key&quot;: &quot;submit.organization_profile.update&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18564603625&quot;, &quot;key&quot;: &quot;view.classroom_select_organization&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18568612016&quot;, &quot;key&quot;: &quot;click.classroom_sign_in_click&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18572592540&quot;, &quot;key&quot;: &quot;view.classroom_name&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18574203855&quot;, &quot;key&quot;: &quot;click.classroom_create_organization&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18582053415&quot;, &quot;key&quot;: &quot;click.classroom_select_organization&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18589463420&quot;, &quot;key&quot;: &quot;click.classroom_create_classroom&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18591323364&quot;, &quot;key&quot;: &quot;click.classroom_create_first_classroom&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18591652321&quot;, &quot;key&quot;: &quot;click.classroom_grant_access&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18607131425&quot;, &quot;key&quot;: &quot;view.classroom_creation&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;18831680583&quot;, &quot;key&quot;: &quot;upgrade_account_plan&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;19064064515&quot;, &quot;key&quot;: &quot;click.signup&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;19075373687&quot;, &quot;key&quot;: &quot;click.view_account_billing_page&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;19077355841&quot;, &quot;key&quot;: &quot;click.dismiss_signup_prompt&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;19079713938&quot;, &quot;key&quot;: &quot;click.contact_sales&quot;}, {&quot;experimentIds&quot;: [&quot;19536000020&quot;], &quot;id&quot;: &quot;19120963070&quot;, &quot;key&quot;: &quot;click.compare_account_plans&quot;}, {&quot;experimentIds&quot;: [&quot;19536000020&quot;], &quot;id&quot;: &quot;19151690317&quot;, &quot;key&quot;: &quot;click.upgrade_account_cta&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;19424193129&quot;, &quot;key&quot;: &quot;click.open_account_switcher&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;19520330825&quot;, &quot;key&quot;: &quot;click.visit_account_profile&quot;}, {&quot;experimentIds&quot;: [], &quot;id&quot;: &quot;19540970635&quot;, &quot;key&quot;: &quot;click.switch_account_context&quot;}], &quot;revision&quot;: &quot;380&quot;}" />
    91. 

  91.   <!-- To prevent page flashing, the optimizely JS needs to be loaded in the
    92. 

  92.     <head> tag before the DOM renders -->
    93. 

  93.   <script crossorigin="anonymous" defer="defer" integrity="sha512-VJrqSK702Mzl9EQxm2OvFxKaumGptgVdeJS2rsaLvVlOdR4HEu3ZFjtV83kMKdYRelUnxxaAFw0wthkpdEUafw==" type="application/javascript" src="https://github.githubassets.com/assets/optimizely-549aea48.js"></script>
    94. 

  94. 

  95. 

  96. 

  97.   
    98. 

  98. 

  99.       <meta name="hostname" content="github.com">
    100. 

  100.     <meta name="user-login" content="">
    101. 

  101. 

  102. 

  103.       <meta name="expected-hostname" content="github.com">
    104. 

  104. 

  105. 

  106.     <meta name="enabled-features" content="MARKETPLACE_PENDING_INSTALLATIONS,ACTIONS_ENVIRONMENTS,ACTIONS_ENVIRONMENTS">
    107. 

  107. 

  108.   <meta http-equiv="x-pjax-version" content="b9519ee0f1a36ea318a50dfe223f5168c887f949c28be1eb4abf8a9c37367fa6">
    109. 

  109.   
    110. 

  110. 

  111.         <link href="https://github.com/lbuchs/WebAuthn/commits/master.atom" rel="alternate" title="Recent Commits to WebAuthn:master" type="application/atom+xml">
    112. 

  112. 

  113.   <meta name="go-import" content="github.com/lbuchs/WebAuthn git https://github.com/lbuchs/WebAuthn.git">
    114. 

  114. 

  115.   <meta name="octolytics-dimension-user_id" content="37619779" /><meta name="octolytics-dimension-user_login" content="lbuchs" /><meta name="octolytics-dimension-repository_id" content="149437753" /><meta name="octolytics-dimension-repository_nwo" content="lbuchs/WebAuthn" /><meta name="octolytics-dimension-repository_public" content="true" /><meta name="octolytics-dimension-repository_is_fork" content="false" /><meta name="octolytics-dimension-repository_network_root_id" content="149437753" /><meta name="octolytics-dimension-repository_network_root_nwo" content="lbuchs/WebAuthn" /><meta name="octolytics-dimension-repository_explore_github_marketplace_ci_cta_shown" content="false" />
    116. 

  116. 

  117. 

  118. 

  119.     <link rel="canonical" href="https://github.com/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php" data-pjax-transient>
    120. 

  120. 

  121. 

  122.   <meta name="browser-stats-url" content="https://api.github.com/_private/browser/stats">
    123. 

  123. 

  124.   <meta name="browser-errors-url" content="https://api.github.com/_private/browser/errors">
    125. 

  125. 

  126.   <meta name="browser-optimizely-client-errors-url" content="https://api.github.com/_private/browser/optimizely_client/errors">
    127. 

  127. 

  128.   <link rel="mask-icon" href="https://github.githubassets.com/pinned-octocat.svg" color="#000000">
    129. 

  129.   <link rel="alternate icon" class="js-site-favicon" type="image/png" href="https://github.githubassets.com/favicons/favicon.png">
    130. 

  130.   <link rel="icon" class="js-site-favicon" type="image/svg+xml" href="https://github.githubassets.com/favicons/favicon.svg">
    131. 

  131. 

  132. <meta name="theme-color" content="#1e2327">
    133. 

  133.   <meta name="color-scheme" content="light dark">
    134. 

  134. 

  135. 

  136.   <link rel="manifest" href="/manifest.json" crossOrigin="use-credentials">
    137. 

  137. 

  138.   </head>
    139. 

  139. 

  140.   <body class="logged-out env-production page-responsive page-blob">
    141. 

  141.     
    142. 

  142. 

  143.     <div class="position-relative js-header-wrapper ">
    144. 

  144.       <a href="#start-of-content" class="px-2 py-4 bg-blue text-white show-on-focus js-skip-to-content">Skip to content</a>
    145. 

  145.       <span class="progress-pjax-loader width-full js-pjax-loader-bar Progress position-fixed">
    146. 

  146.     <span style="background-color: #79b8ff;width: 0%;" class="Progress-item progress-pjax-loader-bar "></span>
    147. 

  147. </span>      
    148. 

  148.       
    149. 

  149. 

  150. 

  151.             <header class="Header-old header-logged-out js-details-container Details position-relative f4 py-2" role="banner">
    152. 

  152.   <div class="container-xl d-lg-flex flex-items-center p-responsive">
    153. 

  153.     <div class="d-flex flex-justify-between flex-items-center">
    154. 

  154.         <a class="mr-4" href="https://github.com/" aria-label="Homepage" data-ga-click="(Logged out) Header, go to homepage, icon:logo-wordmark">
    155. 

  155.           <svg height="32" class="octicon octicon-mark-github text-white" viewBox="0 0 16 16" version="1.1" width="32" aria-hidden="true"><path fill-rule="evenodd" d="M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.013 8.013 0 0016 8c0-4.42-3.58-8-8-8z"></path></svg>
    156. 

  156.         </a>
    157. 

  157. 

  158.           <div class="d-lg-none css-truncate css-truncate-target width-fit p-2">
    159. 

  159.             
    160. 

  160. 

  161.           </div>
    162. 

  162. 

  163.         <div class="d-flex flex-items-center">
    164. 

  164.               <a href="/join?ref_cta=Sign+up&amp;ref_loc=header+logged+out&amp;ref_page=%2F%3Cuser-name%3E%2F%3Crepo-name%3E%2Fblob%2Fshow&amp;source=header-repo"
    165. 

  165.                 class="d-inline-block d-lg-none f5 text-white no-underline border border-gray-dark rounded-2 px-2 py-1 mr-3 mr-sm-5"
    166. 

  166.                 data-hydro-click="{&quot;event_type&quot;:&quot;authentication.click&quot;,&quot;payload&quot;:{&quot;location_in_page&quot;:&quot;site header&quot;,&quot;repository_id&quot;:null,&quot;auth_type&quot;:&quot;SIGN_UP&quot;,&quot;originating_url&quot;:&quot;https://github.com/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="1fa73645d79e7339fa56f9c3fdc149417fb1e8add226b07afc3dee86ae9c1d63"
    167. 

  167.                 data-ga-click="Sign up, click to sign up for account, ref_page:/&lt;user-name&gt;/&lt;repo-name&gt;/blob/show;ref_cta:Sign up;ref_loc:header logged out">
    168. 

  168.                 Sign&nbsp;up
    169. 

  169.               </a>
    170. 

  170. 

  171.           <button class="btn-link d-lg-none mt-1 js-details-target" type="button" aria-label="Toggle navigation" aria-expanded="false">
    172. 

  172.             <svg height="24" class="octicon octicon-three-bars text-white" viewBox="0 0 16 16" version="1.1" width="24" aria-hidden="true"><path fill-rule="evenodd" d="M1 2.75A.75.75 0 011.75 2h12.5a.75.75 0 110 1.5H1.75A.75.75 0 011 2.75zm0 5A.75.75 0 011.75 7h12.5a.75.75 0 110 1.5H1.75A.75.75 0 011 7.75zM1.75 12a.75.75 0 100 1.5h12.5a.75.75 0 100-1.5H1.75z"></path></svg>
    173. 

  173.           </button>
    174. 

  174.         </div>
    175. 

  175.     </div>
    176. 

  176. 

  177.     <div class="HeaderMenu HeaderMenu--logged-out position-fixed top-0 right-0 bottom-0 height-fit position-lg-relative d-lg-flex flex-justify-between flex-items-center flex-auto">
    178. 

  178.       <div class="d-flex d-lg-none flex-justify-end border-bottom bg-gray-light p-3">
    179. 

  179.         <button class="btn-link js-details-target" type="button" aria-label="Toggle navigation" aria-expanded="false">
    180. 

  180.           <svg height="24" class="octicon octicon-x text-gray" viewBox="0 0 24 24" version="1.1" width="24" aria-hidden="true"><path fill-rule="evenodd" d="M5.72 5.72a.75.75 0 011.06 0L12 10.94l5.22-5.22a.75.75 0 111.06 1.06L13.06 12l5.22 5.22a.75.75 0 11-1.06 1.06L12 13.06l-5.22 5.22a.75.75 0 01-1.06-1.06L10.94 12 5.72 6.78a.75.75 0 010-1.06z"></path></svg>
    181. 

  181.         </button>
    182. 

  182.       </div>
    183. 

  183. 

  184.         <nav class="mt-0 px-3 px-lg-0 mb-5 mb-lg-0" aria-label="Global">
    185. 

  185.           <ul class="d-lg-flex list-style-none">
    186. 

  186.               <li class="d-block d-lg-flex flex-lg-nowrap flex-lg-items-center border-bottom border-lg-bottom-0 mr-0 mr-lg-3 edge-item-fix position-relative flex-wrap flex-justify-between d-flex flex-items-center ">
    187. 

  187.                 <details class="HeaderMenu-details details-overlay details-reset width-full">
    188. 

  188.                   <summary class="HeaderMenu-summary HeaderMenu-link px-0 py-3 border-0 no-wrap d-block d-lg-inline-block">
    189. 

  189.                     Why GitHub?
    190. 

  190.                     <svg x="0px" y="0px" viewBox="0 0 14 8" xml:space="preserve" fill="none" class="icon-chevon-down-mktg position-absolute position-lg-relative">
    191. 

  191.                       <path d="M1,1l6.2,6L13,1"></path>
    192. 

  192.                     </svg>
    193. 

  193.                   </summary>
    194. 

  194.                   <div class="dropdown-menu flex-auto rounded-1 bg-white px-0 mt-0 pb-4 p-lg-4 position-relative position-lg-absolute left-0 left-lg-n4">
    195. 

  195.                     <a href="/features" class="py-2 lh-condensed-ultra d-block link-gray-dark no-underline h5 Bump-link--hover" data-ga-click="(Logged out) Header, go to Features">Features <span class="Bump-link-symbol float-right text-normal text-gray-light">&rarr;</span></a>
    196. 

  196.                     <ul class="list-style-none f5 pb-3">
    197. 

  197.                       <li class="edge-item-fix"><a href="/features/code-review/" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to Code review">Code review</a></li>
    198. 

  198.                       <li class="edge-item-fix"><a href="/features/project-management/" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to Project management">Project management</a></li>
    199. 

  199.                       <li class="edge-item-fix"><a href="/features/integrations" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to Integrations">Integrations</a></li>
    200. 

  200.                       <li class="edge-item-fix"><a href="/features/actions" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to Actions">Actions</a></li>
    201. 

  201.                       <li class="edge-item-fix"><a href="/features/packages" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to GitHub Packages">Packages</a></li>
    202. 

  202.                       <li class="edge-item-fix"><a href="/features/security" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to Security">Security</a></li>
    203. 

  203.                       <li class="edge-item-fix"><a href="/features#team-management" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to Team management">Team management</a></li>
    204. 

  204.                       <li class="edge-item-fix"><a href="/features#hosting" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to Code hosting">Hosting</a></li>
    205. 

  205.                       <li class="edge-item-fix hide-xl"><a href="/mobile" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to Mobile">Mobile</a></li>
    206. 

  206.                     </ul>
    207. 

  207. 

  208.                     <ul class="list-style-none mb-0 border-lg-top pt-lg-3">
    209. 

  209.                       <li class="edge-item-fix"><a href="/customer-stories" class="py-2 lh-condensed-ultra d-block no-underline link-gray-dark no-underline h5 Bump-link--hover" data-ga-click="(Logged out) Header, go to Customer stories">Customer stories <span class="Bump-link-symbol float-right text-normal text-gray-light">&rarr;</span></a></li>
    210. 

  210.                       <li class="edge-item-fix"><a href="/security" class="py-2 lh-condensed-ultra d-block no-underline link-gray-dark no-underline h5 Bump-link--hover" data-ga-click="(Logged out) Header, go to Security">Security <span class="Bump-link-symbol float-right text-normal text-gray-light">&rarr;</span></a></li>
    211. 

  211.                     </ul>
    212. 

  212.                   </div>
    213. 

  213.                 </details>
    214. 

  214.               </li>
    215. 

  215.               <li class="border-bottom border-lg-bottom-0 mr-0 mr-lg-3">
    216. 

  216.                 <a href="/team" class="HeaderMenu-link no-underline py-3 d-block d-lg-inline-block" data-ga-click="(Logged out) Header, go to Team">Team</a>
    217. 

  217.               </li>
    218. 

  218.               <li class="border-bottom border-lg-bottom-0 mr-0 mr-lg-3">
    219. 

  219.                 <a href="/enterprise" class="HeaderMenu-link no-underline py-3 d-block d-lg-inline-block" data-ga-click="(Logged out) Header, go to Enterprise">Enterprise</a>
    220. 

  220.               </li>
    221. 

  221. 

  222.               <li class="d-block d-lg-flex flex-lg-nowrap flex-lg-items-center border-bottom border-lg-bottom-0 mr-0 mr-lg-3 edge-item-fix position-relative flex-wrap flex-justify-between d-flex flex-items-center ">
    223. 

  223.                 <details class="HeaderMenu-details details-overlay details-reset width-full">
    224. 

  224.                   <summary class="HeaderMenu-summary HeaderMenu-link px-0 py-3 border-0 no-wrap d-block d-lg-inline-block">
    225. 

  225.                     Explore
    226. 

  226.                     <svg x="0px" y="0px" viewBox="0 0 14 8" xml:space="preserve" fill="none" class="icon-chevon-down-mktg position-absolute position-lg-relative">
    227. 

  227.                       <path d="M1,1l6.2,6L13,1"></path>
    228. 

  228.                     </svg>
    229. 

  229.                   </summary>
    230. 

  230. 

  231.                   <div class="dropdown-menu flex-auto rounded-1 bg-white px-0 pt-2 pb-0 mt-0 pb-4 p-lg-4 position-relative position-lg-absolute left-0 left-lg-n4">
    232. 

  232.                     <ul class="list-style-none mb-3">
    233. 

  233.                       <li class="edge-item-fix"><a href="/explore" class="py-2 lh-condensed-ultra d-block link-gray-dark no-underline h5 Bump-link--hover" data-ga-click="(Logged out) Header, go to Explore">Explore GitHub <span class="Bump-link-symbol float-right text-normal text-gray-light">&rarr;</span></a></li>
    234. 

  234.                     </ul>
    235. 

  235. 

  236.                     <h4 class="text-gray-light text-normal text-mono f5 mb-2 border-lg-top pt-lg-3">Learn &amp; contribute</h4>
    237. 

  237.                     <ul class="list-style-none mb-3">
    238. 

  238.                       <li class="edge-item-fix"><a href="/topics" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to Topics">Topics</a></li>
    239. 

  239.                         <li class="edge-item-fix"><a href="/collections" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to Collections">Collections</a></li>
    240. 

  240.                       <li class="edge-item-fix"><a href="/trending" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to Trending">Trending</a></li>
    241. 

  241.                       <li class="edge-item-fix"><a href="https://lab.github.com/" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to Learning lab">Learning Lab</a></li>
    242. 

  242.                       <li class="edge-item-fix"><a href="https://opensource.guide" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to Open source guides">Open source guides</a></li>
    243. 

  243.                     </ul>
    244. 

  244. 

  245.                     <h4 class="text-gray-light text-normal text-mono f5 mb-2 border-lg-top pt-lg-3">Connect with others</h4>
    246. 

  246.                     <ul class="list-style-none mb-0">
    247. 

  247.                       <li class="edge-item-fix"><a href="https://github.com/events" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to Events">Events</a></li>
    248. 

  248.                       <li class="edge-item-fix"><a href="https://github.community" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to Community forum">Community forum</a></li>
    249. 

  249.                       <li class="edge-item-fix"><a href="https://education.github.com" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to GitHub Education">GitHub Education</a></li>
    250. 

  250.                       <li class="edge-item-fix"><a href="https://stars.github.com" class="py-2 pb-0 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to GitHub Stars Program">GitHub Stars program</a></li>
    251. 

  251.                     </ul>
    252. 

  252.                   </div>
    253. 

  253.                 </details>
    254. 

  254.               </li>
    255. 

  255. 

  256.               <li class="border-bottom border-lg-bottom-0 mr-0 mr-lg-3">
    257. 

  257.                 <a href="/marketplace" class="HeaderMenu-link no-underline py-3 d-block d-lg-inline-block" data-ga-click="(Logged out) Header, go to Marketplace">Marketplace</a>
    258. 

  258.               </li>
    259. 

  259. 

  260.               <li class="d-block d-lg-flex flex-lg-nowrap flex-lg-items-center border-bottom border-lg-bottom-0 mr-0 mr-lg-3 edge-item-fix position-relative flex-wrap flex-justify-between d-flex flex-items-center ">
    261. 

  261.                 <details class="HeaderMenu-details details-overlay details-reset width-full">
    262. 

  262.                   <summary class="HeaderMenu-summary HeaderMenu-link px-0 py-3 border-0 no-wrap d-block d-lg-inline-block">
    263. 

  263.                     Pricing
    264. 

  264.                     <svg x="0px" y="0px" viewBox="0 0 14 8" xml:space="preserve" fill="none" class="icon-chevon-down-mktg position-absolute position-lg-relative">
    265. 

  265.                        <path d="M1,1l6.2,6L13,1"></path>
    266. 

  266.                     </svg>
    267. 

  267.                   </summary>
    268. 

  268. 

  269.                   <div class="dropdown-menu flex-auto rounded-1 bg-white px-0 pt-2 pb-4 mt-0 p-lg-4 position-relative position-lg-absolute left-0 left-lg-n4">
    270. 

  270.                     <a href="/pricing" class="pb-2 lh-condensed-ultra d-block link-gray-dark no-underline h5 Bump-link--hover" data-ga-click="(Logged out) Header, go to Pricing">Plans <span class="Bump-link-symbol float-right text-normal text-gray-light">&rarr;</span></a>
    271. 

  271. 

  272.                     <ul class="list-style-none mb-3">
    273. 

  273.                       <li class="edge-item-fix"><a href="/pricing#feature-comparison" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to Compare plans">Compare plans</a></li>
    274. 

  274.                       <li class="edge-item-fix"><a href="https://enterprise.github.com/contact" class="py-2 lh-condensed-ultra d-block link-gray no-underline f5" data-ga-click="(Logged out) Header, go to Contact Sales">Contact Sales</a></li>
    275. 

  275.                     </ul>
    276. 

  276. 

  277.                     <ul class="list-style-none mb-0 border-lg-top pt-lg-3">
    278. 

  278.                       <li class="edge-item-fix"><a href="/nonprofit" class="py-2 lh-condensed-ultra d-block no-underline link-gray-dark no-underline h5 Bump-link--hover" data-ga-click="(Logged out) Header, go to Nonprofits">Nonprofit <span class="Bump-link-symbol float-right text-normal text-gray-light">&rarr;</span></a></li>
    279. 

  279.                       <li class="edge-item-fix"><a href="https://education.github.com" class="py-2 pb-0 lh-condensed-ultra d-block no-underline link-gray-dark no-underline h5 Bump-link--hover"  data-ga-click="(Logged out) Header, go to Education">Education <span class="Bump-link-symbol float-right text-normal text-gray-light">&rarr;</span></a></li>
    280. 

  280.                     </ul>
    281. 

  281.                   </div>
    282. 

  282.                 </details>
    283. 

  283.               </li>
    284. 

  284.           </ul>
    285. 

  285.         </nav>
    286. 

  286. 

  287.       <div class="d-lg-flex flex-items-center px-3 px-lg-0 text-center text-lg-left">
    288. 

  288.           <div class="d-lg-flex mb-3 mb-lg-0">
    289. 

  289.             <div class="header-search flex-auto js-site-search position-relative flex-self-stretch flex-md-self-auto mb-3 mb-md-0 mr-0 mr-md-3 scoped-search site-scoped-search js-jump-to"
    290. 

  290.   role="combobox"
    291. 

  291.   aria-owns="jump-to-results"
    292. 

  292.   aria-label="Search or jump to"
    293. 

  293.   aria-haspopup="listbox"
    294. 

  294.   aria-expanded="false"
    295. 

  295. >
    296. 

  296.   <div class="position-relative">
    297. 

  297.     <!-- '"` --><!-- </textarea></xmp> --></option></form><form class="js-site-search-form" role="search" aria-label="Site" data-flagged-in="false" data-scope-type="Repository" data-scope-id="149437753" data-scoped-search-url="/lbuchs/WebAuthn/search" data-owner-scoped-search-url="/users/lbuchs/search" data-unscoped-search-url="/search" action="/lbuchs/WebAuthn/search" accept-charset="UTF-8" method="get">
    298. 

  298.       <label class="form-control input-sm header-search-wrapper p-0 js-chromeless-input-container header-search-wrapper-jump-to position-relative d-flex flex-justify-between flex-items-center">
    299. 

  299.         <input type="text"
    300. 

  300.           class="form-control input-sm header-search-input jump-to-field js-jump-to-field js-site-search-focus js-site-search-field is-clearable"
    301. 

  301.           data-hotkey="s,/"
    302. 

  302.           name="q"
    303. 

  303.           value=""
    304. 

  304.           placeholder="Search"
    305. 

  305.           data-unscoped-placeholder="Search GitHub"
    306. 

  306.           data-scoped-placeholder="Search"
    307. 

  307.           autocapitalize="off"
    308. 

  308.           aria-autocomplete="list"
    309. 

  309.           aria-controls="jump-to-results"
    310. 

  310.           aria-label="Search"
    311. 

  311.           data-jump-to-suggestions-path="/_graphql/GetSuggestedNavigationDestinations"
    312. 

  312.           spellcheck="false"
    313. 

  313.           autocomplete="off"
    314. 

  314.           >
    315. 

  315.           <input type="hidden" data-csrf="true" class="js-data-jump-to-suggestions-path-csrf" value="zUjaiZOouHy7sVPjvd6AoASla0iHuBSr0e3yU0K5eRH4kPloSavD1Kkyv/CvwhwcB5ZV/96AkuUeozlrZh2nYQ==" />
    316. 

  316.           <input type="hidden" class="js-site-search-type-field" name="type" >
    317. 

  317.             <img src="https://github.githubassets.com/images/search-key-slash.svg" alt="" class="mr-2 header-search-key-slash">
    318. 

  318. 

  319.             <div class="Box position-absolute overflow-hidden d-none jump-to-suggestions js-jump-to-suggestions-container">
    320. 

  320.               
    321. 

  321. <ul class="d-none js-jump-to-suggestions-template-container">
    322. 

  322.   
    323. 

  323. 

  324. <li class="d-flex flex-justify-start flex-items-center p-0 f5 navigation-item js-navigation-item js-jump-to-suggestion" role="option">
    325. 

  325.   <a tabindex="-1" class="no-underline d-flex flex-auto flex-items-center jump-to-suggestions-path js-jump-to-suggestion-path js-navigation-open p-2" href="" data-item-type="suggestion">
    326. 

  326.     <div class="jump-to-octicon js-jump-to-octicon flex-shrink-0 mr-2 text-center d-none">
    327. 

  327.       <svg height="16" width="16" class="octicon octicon-repo flex-shrink-0 js-jump-to-octicon-repo d-none" title="Repository" aria-label="Repository" viewBox="0 0 16 16" version="1.1" role="img"><path fill-rule="evenodd" d="M2 2.5A2.5 2.5 0 014.5 0h8.75a.75.75 0 01.75.75v12.5a.75.75 0 01-.75.75h-2.5a.75.75 0 110-1.5h1.75v-2h-8a1 1 0 00-.714 1.7.75.75 0 01-1.072 1.05A2.495 2.495 0 012 11.5v-9zm10.5-1V9h-8c-.356 0-.694.074-1 .208V2.5a1 1 0 011-1h8zM5 12.25v3.25a.25.25 0 00.4.2l1.45-1.087a.25.25 0 01.3 0L8.6 15.7a.25.25 0 00.4-.2v-3.25a.25.25 0 00-.25-.25h-3.5a.25.25 0 00-.25.25z"></path></svg>
    328. 

  328.       <svg height="16" width="16" class="octicon octicon-project flex-shrink-0 js-jump-to-octicon-project d-none" title="Project" aria-label="Project" viewBox="0 0 16 16" version="1.1" role="img"><path fill-rule="evenodd" d="M1.75 0A1.75 1.75 0 000 1.75v12.5C0 15.216.784 16 1.75 16h12.5A1.75 1.75 0 0016 14.25V1.75A1.75 1.75 0 0014.25 0H1.75zM1.5 1.75a.25.25 0 01.25-.25h12.5a.25.25 0 01.25.25v12.5a.25.25 0 01-.25.25H1.75a.25.25 0 01-.25-.25V1.75zM11.75 3a.75.75 0 00-.75.75v7.5a.75.75 0 001.5 0v-7.5a.75.75 0 00-.75-.75zm-8.25.75a.75.75 0 011.5 0v5.5a.75.75 0 01-1.5 0v-5.5zM8 3a.75.75 0 00-.75.75v3.5a.75.75 0 001.5 0v-3.5A.75.75 0 008 3z"></path></svg>
    329. 

  329.       <svg height="16" width="16" class="octicon octicon-search flex-shrink-0 js-jump-to-octicon-search d-none" title="Search" aria-label="Search" viewBox="0 0 16 16" version="1.1" role="img"><path fill-rule="evenodd" d="M11.5 7a4.499 4.499 0 11-8.998 0A4.499 4.499 0 0111.5 7zm-.82 4.74a6 6 0 111.06-1.06l3.04 3.04a.75.75 0 11-1.06 1.06l-3.04-3.04z"></path></svg>
    330. 

  330.     </div>
    331. 

  331. 

  332.     <img class="avatar mr-2 flex-shrink-0 js-jump-to-suggestion-avatar d-none" alt="" aria-label="Team" src="" width="28" height="28">
    333. 

  333. 

  334.     <div class="jump-to-suggestion-name js-jump-to-suggestion-name flex-auto overflow-hidden text-left no-wrap css-truncate css-truncate-target">
    335. 

  335.     </div>
    336. 

  336. 

  337.     <div class="border rounded-1 flex-shrink-0 bg-gray px-1 text-gray-light ml-1 f6 d-none js-jump-to-badge-search">
    338. 

  338.       <span class="js-jump-to-badge-search-text-default d-none" aria-label="in this repository">
    339. 

  339.         In this repository
    340. 

  340.       </span>
    341. 

  341.       <span class="js-jump-to-badge-search-text-global d-none" aria-label="in all of GitHub">
    342. 

  342.         All GitHub
    343. 

  343.       </span>
    344. 

  344.       <span aria-hidden="true" class="d-inline-block ml-1 v-align-middle">↵</span>
    345. 

  345.     </div>
    346. 

  346. 

  347.     <div aria-hidden="true" class="border rounded-1 flex-shrink-0 bg-gray px-1 text-gray-light ml-1 f6 d-none d-on-nav-focus js-jump-to-badge-jump">
    348. 

  348.       Jump to
    349. 

  349.       <span class="d-inline-block ml-1 v-align-middle">↵</span>
    350. 

  350.     </div>
    351. 

  351.   </a>
    352. 

  352. </li>
    353. 

  353. 

  354. </ul>
    355. 

  355. 

  356. <ul class="d-none js-jump-to-no-results-template-container">
    357. 

  357.   <li class="d-flex flex-justify-center flex-items-center f5 d-none js-jump-to-suggestion p-2">
    358. 

  358.     <span class="text-gray">No suggested jump to results</span>
    359. 

  359.   </li>
    360. 

  360. </ul>
    361. 

  361. 

  362. <ul id="jump-to-results" role="listbox" class="p-0 m-0 js-navigation-container jump-to-suggestions-results-container js-jump-to-suggestions-results-container">
    363. 

  363.   
    364. 

  364. 

  365. <li class="d-flex flex-justify-start flex-items-center p-0 f5 navigation-item js-navigation-item js-jump-to-scoped-search d-none" role="option">
    366. 

  366.   <a tabindex="-1" class="no-underline d-flex flex-auto flex-items-center jump-to-suggestions-path js-jump-to-suggestion-path js-navigation-open p-2" href="" data-item-type="scoped_search">
    367. 

  367.     <div class="jump-to-octicon js-jump-to-octicon flex-shrink-0 mr-2 text-center d-none">
    368. 

  368.       <svg height="16" width="16" class="octicon octicon-repo flex-shrink-0 js-jump-to-octicon-repo d-none" title="Repository" aria-label="Repository" viewBox="0 0 16 16" version="1.1" role="img"><path fill-rule="evenodd" d="M2 2.5A2.5 2.5 0 014.5 0h8.75a.75.75 0 01.75.75v12.5a.75.75 0 01-.75.75h-2.5a.75.75 0 110-1.5h1.75v-2h-8a1 1 0 00-.714 1.7.75.75 0 01-1.072 1.05A2.495 2.495 0 012 11.5v-9zm10.5-1V9h-8c-.356 0-.694.074-1 .208V2.5a1 1 0 011-1h8zM5 12.25v3.25a.25.25 0 00.4.2l1.45-1.087a.25.25 0 01.3 0L8.6 15.7a.25.25 0 00.4-.2v-3.25a.25.25 0 00-.25-.25h-3.5a.25.25 0 00-.25.25z"></path></svg>
    369. 

  369.       <svg height="16" width="16" class="octicon octicon-project flex-shrink-0 js-jump-to-octicon-project d-none" title="Project" aria-label="Project" viewBox="0 0 16 16" version="1.1" role="img"><path fill-rule="evenodd" d="M1.75 0A1.75 1.75 0 000 1.75v12.5C0 15.216.784 16 1.75 16h12.5A1.75 1.75 0 0016 14.25V1.75A1.75 1.75 0 0014.25 0H1.75zM1.5 1.75a.25.25 0 01.25-.25h12.5a.25.25 0 01.25.25v12.5a.25.25 0 01-.25.25H1.75a.25.25 0 01-.25-.25V1.75zM11.75 3a.75.75 0 00-.75.75v7.5a.75.75 0 001.5 0v-7.5a.75.75 0 00-.75-.75zm-8.25.75a.75.75 0 011.5 0v5.5a.75.75 0 01-1.5 0v-5.5zM8 3a.75.75 0 00-.75.75v3.5a.75.75 0 001.5 0v-3.5A.75.75 0 008 3z"></path></svg>
    370. 

  370.       <svg height="16" width="16" class="octicon octicon-search flex-shrink-0 js-jump-to-octicon-search d-none" title="Search" aria-label="Search" viewBox="0 0 16 16" version="1.1" role="img"><path fill-rule="evenodd" d="M11.5 7a4.499 4.499 0 11-8.998 0A4.499 4.499 0 0111.5 7zm-.82 4.74a6 6 0 111.06-1.06l3.04 3.04a.75.75 0 11-1.06 1.06l-3.04-3.04z"></path></svg>
    371. 

  371.     </div>
    372. 

  372. 

  373.     <img class="avatar mr-2 flex-shrink-0 js-jump-to-suggestion-avatar d-none" alt="" aria-label="Team" src="" width="28" height="28">
    374. 

  374. 

  375.     <div class="jump-to-suggestion-name js-jump-to-suggestion-name flex-auto overflow-hidden text-left no-wrap css-truncate css-truncate-target">
    376. 

  376.     </div>
    377. 

  377. 

  378.     <div class="border rounded-1 flex-shrink-0 bg-gray px-1 text-gray-light ml-1 f6 d-none js-jump-to-badge-search">
    379. 

  379.       <span class="js-jump-to-badge-search-text-default d-none" aria-label="in this repository">
    380. 

  380.         In this repository
    381. 

  381.       </span>
    382. 

  382.       <span class="js-jump-to-badge-search-text-global d-none" aria-label="in all of GitHub">
    383. 

  383.         All GitHub
    384. 

  384.       </span>
    385. 

  385.       <span aria-hidden="true" class="d-inline-block ml-1 v-align-middle">↵</span>
    386. 

  386.     </div>
    387. 

  387. 

  388.     <div aria-hidden="true" class="border rounded-1 flex-shrink-0 bg-gray px-1 text-gray-light ml-1 f6 d-none d-on-nav-focus js-jump-to-badge-jump">
    389. 

  389.       Jump to
    390. 

  390.       <span class="d-inline-block ml-1 v-align-middle">↵</span>
    391. 

  391.     </div>
    392. 

  392.   </a>
    393. 

  393. </li>
    394. 

  394. 

  395.   
    396. 

  396. 

  397. <li class="d-flex flex-justify-start flex-items-center p-0 f5 navigation-item js-navigation-item js-jump-to-global-search d-none" role="option">
    398. 

  398.   <a tabindex="-1" class="no-underline d-flex flex-auto flex-items-center jump-to-suggestions-path js-jump-to-suggestion-path js-navigation-open p-2" href="" data-item-type="global_search">
    399. 

  399.     <div class="jump-to-octicon js-jump-to-octicon flex-shrink-0 mr-2 text-center d-none">
    400. 

  400.       <svg height="16" width="16" class="octicon octicon-repo flex-shrink-0 js-jump-to-octicon-repo d-none" title="Repository" aria-label="Repository" viewBox="0 0 16 16" version="1.1" role="img"><path fill-rule="evenodd" d="M2 2.5A2.5 2.5 0 014.5 0h8.75a.75.75 0 01.75.75v12.5a.75.75 0 01-.75.75h-2.5a.75.75 0 110-1.5h1.75v-2h-8a1 1 0 00-.714 1.7.75.75 0 01-1.072 1.05A2.495 2.495 0 012 11.5v-9zm10.5-1V9h-8c-.356 0-.694.074-1 .208V2.5a1 1 0 011-1h8zM5 12.25v3.25a.25.25 0 00.4.2l1.45-1.087a.25.25 0 01.3 0L8.6 15.7a.25.25 0 00.4-.2v-3.25a.25.25 0 00-.25-.25h-3.5a.25.25 0 00-.25.25z"></path></svg>
    401. 

  401.       <svg height="16" width="16" class="octicon octicon-project flex-shrink-0 js-jump-to-octicon-project d-none" title="Project" aria-label="Project" viewBox="0 0 16 16" version="1.1" role="img"><path fill-rule="evenodd" d="M1.75 0A1.75 1.75 0 000 1.75v12.5C0 15.216.784 16 1.75 16h12.5A1.75 1.75 0 0016 14.25V1.75A1.75 1.75 0 0014.25 0H1.75zM1.5 1.75a.25.25 0 01.25-.25h12.5a.25.25 0 01.25.25v12.5a.25.25 0 01-.25.25H1.75a.25.25 0 01-.25-.25V1.75zM11.75 3a.75.75 0 00-.75.75v7.5a.75.75 0 001.5 0v-7.5a.75.75 0 00-.75-.75zm-8.25.75a.75.75 0 011.5 0v5.5a.75.75 0 01-1.5 0v-5.5zM8 3a.75.75 0 00-.75.75v3.5a.75.75 0 001.5 0v-3.5A.75.75 0 008 3z"></path></svg>
    402. 

  402.       <svg height="16" width="16" class="octicon octicon-search flex-shrink-0 js-jump-to-octicon-search d-none" title="Search" aria-label="Search" viewBox="0 0 16 16" version="1.1" role="img"><path fill-rule="evenodd" d="M11.5 7a4.499 4.499 0 11-8.998 0A4.499 4.499 0 0111.5 7zm-.82 4.74a6 6 0 111.06-1.06l3.04 3.04a.75.75 0 11-1.06 1.06l-3.04-3.04z"></path></svg>
    403. 

  403.     </div>
    404. 

  404. 

  405.     <img class="avatar mr-2 flex-shrink-0 js-jump-to-suggestion-avatar d-none" alt="" aria-label="Team" src="" width="28" height="28">
    406. 

  406. 

  407.     <div class="jump-to-suggestion-name js-jump-to-suggestion-name flex-auto overflow-hidden text-left no-wrap css-truncate css-truncate-target">
    408. 

  408.     </div>
    409. 

  409. 

  410.     <div class="border rounded-1 flex-shrink-0 bg-gray px-1 text-gray-light ml-1 f6 d-none js-jump-to-badge-search">
    411. 

  411.       <span class="js-jump-to-badge-search-text-default d-none" aria-label="in this repository">
    412. 

  412.         In this repository
    413. 

  413.       </span>
    414. 

  414.       <span class="js-jump-to-badge-search-text-global d-none" aria-label="in all of GitHub">
    415. 

  415.         All GitHub
    416. 

  416.       </span>
    417. 

  417.       <span aria-hidden="true" class="d-inline-block ml-1 v-align-middle">↵</span>
    418. 

  418.     </div>
    419. 

  419. 

  420.     <div aria-hidden="true" class="border rounded-1 flex-shrink-0 bg-gray px-1 text-gray-light ml-1 f6 d-none d-on-nav-focus js-jump-to-badge-jump">
    421. 

  421.       Jump to
    422. 

  422.       <span class="d-inline-block ml-1 v-align-middle">↵</span>
    423. 

  423.     </div>
    424. 

  424.   </a>
    425. 

  425. </li>
    426. 

  426. 

  427. 

  428. </ul>
    429. 

  429. 

  430.             </div>
    431. 

  431.       </label>
    432. 

  432. </form>  </div>
    433. 

  433. </div>
    434. 

  434. 

  435.           </div>
    436. 

  436. 

  437.         <a href="/login?return_to=%2Flbuchs%2FWebAuthn%2Fblob%2Fmaster%2Fsrc%2FAttestation%2FFormat%2FU2f.php"
    438. 

  438.           class="HeaderMenu-link no-underline mr-3"
    439. 

  439.           data-hydro-click="{&quot;event_type&quot;:&quot;authentication.click&quot;,&quot;payload&quot;:{&quot;location_in_page&quot;:&quot;site header menu&quot;,&quot;repository_id&quot;:null,&quot;auth_type&quot;:&quot;SIGN_UP&quot;,&quot;originating_url&quot;:&quot;https://github.com/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="3cfd2894fb0d052d292731382a8442c1bef5d120299c4c1adcfef7574f6d3214"
    440. 

  440.           data-ga-click="(Logged out) Header, clicked Sign in, text:sign-in">
    441. 

  441.           Sign&nbsp;in
    442. 

  442.         </a>
    443. 

  443.             <a href="/join?ref_cta=Sign+up&amp;ref_loc=header+logged+out&amp;ref_page=%2F%3Cuser-name%3E%2F%3Crepo-name%3E%2Fblob%2Fshow&amp;source=header-repo&amp;source_repo=lbuchs%2FWebAuthn"
    444. 

  444.               class="HeaderMenu-link d-inline-block no-underline border border-gray-dark rounded-1 px-2 py-1"
    445. 

  445.               data-hydro-click="{&quot;event_type&quot;:&quot;authentication.click&quot;,&quot;payload&quot;:{&quot;location_in_page&quot;:&quot;site header menu&quot;,&quot;repository_id&quot;:null,&quot;auth_type&quot;:&quot;SIGN_UP&quot;,&quot;originating_url&quot;:&quot;https://github.com/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="3cfd2894fb0d052d292731382a8442c1bef5d120299c4c1adcfef7574f6d3214"
    446. 

  446.               data-ga-click="Sign up, click to sign up for account, ref_page:/&lt;user-name&gt;/&lt;repo-name&gt;/blob/show;ref_cta:Sign up;ref_loc:header logged out">
    447. 

  447.               Sign&nbsp;up
    448. 

  448.             </a>
    449. 

  449.       </div>
    450. 

  450.     </div>
    451. 

  451.   </div>
    452. 

  452. </header>
    453. 

  453. 

  454.     </div>
    455. 

  455. 

  456.   <div id="start-of-content" class="show-on-focus"></div>
    457. 

  457. 

  458. 

  459. 

  460. 

  461. 

  462.     <div data-pjax-replace id="js-flash-container">
    463. 

  463. 

  464. 

  465.   <template class="js-flash-template">
    466. 

  466.     <div class="flash flash-full  {{ className }}">
    467. 

  467.   <div class=" px-2" >
    468. 

  468.     <button class="flash-close js-flash-close" type="button" aria-label="Dismiss this message">
    469. 

  469.       <svg class="octicon octicon-x" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M3.72 3.72a.75.75 0 011.06 0L8 6.94l3.22-3.22a.75.75 0 111.06 1.06L9.06 8l3.22 3.22a.75.75 0 11-1.06 1.06L8 9.06l-3.22 3.22a.75.75 0 01-1.06-1.06L6.94 8 3.72 4.78a.75.75 0 010-1.06z"></path></svg>
    470. 

  470.     </button>
    471. 

  471.     
    472. 

  472.       <div>{{ message }}</div>
    473. 

  473. 

  474.   </div>
    475. 

  475. </div>
    476. 

  476.   </template>
    477. 

  477. </div>
    478. 

  478. 

  479. 

  480.     
    481. 

  481. 

  482.   <include-fragment class="js-notification-shelf-include-fragment" data-base-src="https://github.com/notifications/beta/shelf"></include-fragment>
    483. 

  483. 

  484. 

  485. 

  486. 

  487.   <div
    488. 

  488.     class="application-main "
    489. 

  489.     data-commit-hovercards-enabled
    490. 

  490.     data-discussion-hovercards-enabled
    491. 

  491.     data-issue-and-pr-hovercards-enabled
    492. 

  492.   >
    493. 

  493.         <div itemscope itemtype="http://schema.org/SoftwareSourceCode" class="">
    494. 

  494.     <main id="js-repo-pjax-container" data-pjax-container >
    495. 

  495.       
    496. 

  496. 

  497.     
    498. 

  498. 

  499. 

  500. 

  501. 

  502. 

  503. 

  504.   
    505. 

  505. 

  506. 

  507.   <div class="bg-gray-light pt-3 hide-full-screen mb-5">
    508. 

  508. 

  509.       <div class="d-flex mb-3 px-3 px-md-4 px-lg-5">
    510. 

  510. 

  511.         <div class="flex-auto min-width-0 width-fit mr-3">
    512. 

  512.             <h1 class=" d-flex flex-wrap flex-items-center break-word f3 text-normal">
    513. 

  513.     <svg class="octicon octicon-repo text-gray mr-2" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M2 2.5A2.5 2.5 0 014.5 0h8.75a.75.75 0 01.75.75v12.5a.75.75 0 01-.75.75h-2.5a.75.75 0 110-1.5h1.75v-2h-8a1 1 0 00-.714 1.7.75.75 0 01-1.072 1.05A2.495 2.495 0 012 11.5v-9zm10.5-1V9h-8c-.356 0-.694.074-1 .208V2.5a1 1 0 011-1h8zM5 12.25v3.25a.25.25 0 00.4.2l1.45-1.087a.25.25 0 01.3 0L8.6 15.7a.25.25 0 00.4-.2v-3.25a.25.25 0 00-.25-.25h-3.5a.25.25 0 00-.25.25z"></path></svg>
    514. 

  514.     <span class="author flex-self-stretch" itemprop="author">
    515. 

  515.       <a class="url fn" rel="author" data-hovercard-type="user" data-hovercard-url="/users/lbuchs/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="/lbuchs">lbuchs</a>
    516. 

  516.     </span>
    517. 

  517.     <span class="mx-1 flex-self-stretch color-text-secondary">/</span>
    518. 

  518.   <strong itemprop="name" class="mr-2 flex-self-stretch">
    519. 

  519.     <a data-pjax="#js-repo-pjax-container" class="" href="/lbuchs/WebAuthn">WebAuthn</a>
    520. 

  520.   </strong>
    521. 

  521.   
    522. 

  522. </h1>
    523. 

  523. 

  524. 

  525.         </div>
    526. 

  526. 

  527.           <ul class="pagehead-actions flex-shrink-0 d-none d-md-inline" style="padding: 2px 0;">
    528. 

  528. 

  529.   <li>
    530. 

  530.           <a class="tooltipped tooltipped-s btn btn-sm btn-with-count" aria-label="You must be signed in to watch a repository" rel="nofollow" data-hydro-click="{&quot;event_type&quot;:&quot;authentication.click&quot;,&quot;payload&quot;:{&quot;location_in_page&quot;:&quot;notification subscription menu watch&quot;,&quot;repository_id&quot;:null,&quot;auth_type&quot;:&quot;LOG_IN&quot;,&quot;originating_url&quot;:&quot;https://github.com/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="598d5928985ed1f030381dfc3bb71ab863948ce6a1e9bd0b182df6eaf085d392" href="/login?return_to=%2Flbuchs%2FWebAuthn">
    531. 

  531.     <svg class="octicon octicon-eye" height="16" viewBox="0 0 16 16" version="1.1" width="16" aria-hidden="true"><path fill-rule="evenodd" d="M1.679 7.932c.412-.621 1.242-1.75 2.366-2.717C5.175 4.242 6.527 3.5 8 3.5c1.473 0 2.824.742 3.955 1.715 1.124.967 1.954 2.096 2.366 2.717a.119.119 0 010 .136c-.412.621-1.242 1.75-2.366 2.717C10.825 11.758 9.473 12.5 8 12.5c-1.473 0-2.824-.742-3.955-1.715C2.92 9.818 2.09 8.69 1.679 8.068a.119.119 0 010-.136zM8 2c-1.981 0-3.67.992-4.933 2.078C1.797 5.169.88 6.423.43 7.1a1.619 1.619 0 000 1.798c.45.678 1.367 1.932 2.637 3.024C4.329 13.008 6.019 14 8 14c1.981 0 3.67-.992 4.933-2.078 1.27-1.091 2.187-2.345 2.637-3.023a1.619 1.619 0 000-1.798c-.45-.678-1.367-1.932-2.637-3.023C11.671 2.992 9.981 2 8 2zm0 8a2 2 0 100-4 2 2 0 000 4z"></path></svg>
    532. 

  532.     Watch
    533. 

  533. </a>    <a class="social-count" href="/lbuchs/WebAuthn/watchers"
    534. 

  534.        aria-label="19 users are watching this repository">
    535. 

  535.       19
    536. 

  536.     </a>
    537. 

  537. 

  538.   </li>
    539. 

  539. 

  540.   <li>
    541. 

  541.           <a class="btn btn-sm btn-with-count  tooltipped tooltipped-s" aria-label="You must be signed in to star a repository" rel="nofollow" data-hydro-click="{&quot;event_type&quot;:&quot;authentication.click&quot;,&quot;payload&quot;:{&quot;location_in_page&quot;:&quot;star button&quot;,&quot;repository_id&quot;:149437753,&quot;auth_type&quot;:&quot;LOG_IN&quot;,&quot;originating_url&quot;:&quot;https://github.com/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="a7420bb34426895414d50cee42729e8f317b98fd52602d3e35eb79262f2d0d1e" href="/login?return_to=%2Flbuchs%2FWebAuthn">
    542. 

  542.       <svg class="octicon octicon-star v-align-text-bottom mr-1" height="16" viewBox="0 0 16 16" version="1.1" width="16" aria-hidden="true"><path fill-rule="evenodd" d="M8 .25a.75.75 0 01.673.418l1.882 3.815 4.21.612a.75.75 0 01.416 1.279l-3.046 2.97.719 4.192a.75.75 0 01-1.088.791L8 12.347l-3.766 1.98a.75.75 0 01-1.088-.79l.72-4.194L.818 6.374a.75.75 0 01.416-1.28l4.21-.611L7.327.668A.75.75 0 018 .25zm0 2.445L6.615 5.5a.75.75 0 01-.564.41l-3.097.45 2.24 2.184a.75.75 0 01.216.664l-.528 3.084 2.769-1.456a.75.75 0 01.698 0l2.77 1.456-.53-3.084a.75.75 0 01.216-.664l2.24-2.183-3.096-.45a.75.75 0 01-.564-.41L8 2.694v.001z"></path></svg>
    543. 

  543.       <span>
    544. 

  544.         Star
    545. 

  545. </span></a>
    546. 

  546.     <a class="social-count js-social-count" href="/lbuchs/WebAuthn/stargazers"
    547. 

  547.       aria-label="85 users starred this repository">
    548. 

  548.       85
    549. 

  549.     </a>
    550. 

  550. 

  551.   </li>
    552. 

  552. 

  553.   <li>
    554. 

  554.         <a class="btn btn-sm btn-with-count tooltipped tooltipped-s" aria-label="You must be signed in to fork a repository" rel="nofollow" data-hydro-click="{&quot;event_type&quot;:&quot;authentication.click&quot;,&quot;payload&quot;:{&quot;location_in_page&quot;:&quot;repo details fork button&quot;,&quot;repository_id&quot;:149437753,&quot;auth_type&quot;:&quot;LOG_IN&quot;,&quot;originating_url&quot;:&quot;https://github.com/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="9c144c74f6c62b1b64fba74b857324d9e810ba028560e6ec736bf01ed5ded1f4" href="/login?return_to=%2Flbuchs%2FWebAuthn">
    555. 

  555.           <svg class="octicon octicon-repo-forked" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M5 3.25a.75.75 0 11-1.5 0 .75.75 0 011.5 0zm0 2.122a2.25 2.25 0 10-1.5 0v.878A2.25 2.25 0 005.75 8.5h1.5v2.128a2.251 2.251 0 101.5 0V8.5h1.5a2.25 2.25 0 002.25-2.25v-.878a2.25 2.25 0 10-1.5 0v.878a.75.75 0 01-.75.75h-4.5A.75.75 0 015 6.25v-.878zm3.75 7.378a.75.75 0 11-1.5 0 .75.75 0 011.5 0zm3-8.75a.75.75 0 100-1.5.75.75 0 000 1.5z"></path></svg>
    556. 

  556.           Fork
    557. 

  557. </a>
    558. 

  558.       <a href="/lbuchs/WebAuthn/network/members" class="social-count"
    559. 

  559.          aria-label="19 users forked this repository">
    560. 

  560.         19
    561. 

  561.       </a>
    562. 

  562.   </li>
    563. 

  563. </ul>
    564. 

  564. 

  565.       </div>
    566. 

  566.         
    567. 

  567. <nav aria-label="Repository" data-pjax="#js-repo-pjax-container" class="js-repo-nav js-sidenav-container-pjax js-responsive-underlinenav overflow-hidden UnderlineNav px-3 px-md-4 px-lg-5 bg-gray-light">
    568. 

  568.   <ul class="UnderlineNav-body list-style-none ">
    569. 

  569.           <li class="d-flex">
    570. 

  570.         <a class="js-selected-navigation-item selected UnderlineNav-item hx_underlinenav-item no-wrap js-responsive-underlinenav-item" data-tab-item="i0code-tab" data-hotkey="g c" data-ga-click="Repository, Navigation click, Code tab" aria-current="page" data-selected-links="repo_source repo_downloads repo_commits repo_releases repo_tags repo_branches repo_packages repo_deployments /lbuchs/WebAuthn" href="/lbuchs/WebAuthn">
    571. 

  571.               <svg class="octicon octicon-code UnderlineNav-octicon d-none d-sm-inline" height="16" viewBox="0 0 16 16" version="1.1" width="16" aria-hidden="true"><path fill-rule="evenodd" d="M4.72 3.22a.75.75 0 011.06 1.06L2.06 8l3.72 3.72a.75.75 0 11-1.06 1.06L.47 8.53a.75.75 0 010-1.06l4.25-4.25zm6.56 0a.75.75 0 10-1.06 1.06L13.94 8l-3.72 3.72a.75.75 0 101.06 1.06l4.25-4.25a.75.75 0 000-1.06l-4.25-4.25z"></path></svg>
    572. 

  572.             <span data-content="Code">Code</span>
    573. 

  573.               <span title="Not available" class="Counter "></span>
    574. 

  574. </a>
    575. 

  575. 

  576.       </li>
    577. 

  577.       <li class="d-flex">
    578. 

  578.         <a class="js-selected-navigation-item UnderlineNav-item hx_underlinenav-item no-wrap js-responsive-underlinenav-item" data-tab-item="i1issues-tab" data-hotkey="g i" data-ga-click="Repository, Navigation click, Issues tab" data-selected-links="repo_issues repo_labels repo_milestones /lbuchs/WebAuthn/issues" href="/lbuchs/WebAuthn/issues">
    579. 

  579.               <svg class="octicon octicon-issue-opened UnderlineNav-octicon d-none d-sm-inline" height="16" viewBox="0 0 16 16" version="1.1" width="16" aria-hidden="true"><path fill-rule="evenodd" d="M8 1.5a6.5 6.5 0 100 13 6.5 6.5 0 000-13zM0 8a8 8 0 1116 0A8 8 0 010 8zm9 3a1 1 0 11-2 0 1 1 0 012 0zm-.25-6.25a.75.75 0 00-1.5 0v3.5a.75.75 0 001.5 0v-3.5z"></path></svg>
    580. 

  580.             <span data-content="Issues">Issues</span>
    581. 

  581.               <span title="8" class="Counter ">8</span>
    582. 

  582. </a>
    583. 

  583. 

  584.       </li>
    585. 

  585.       <li class="d-flex">
    586. 

  586.         <a class="js-selected-navigation-item UnderlineNav-item hx_underlinenav-item no-wrap js-responsive-underlinenav-item" data-tab-item="i2pull-requests-tab" data-hotkey="g p" data-ga-click="Repository, Navigation click, Pull requests tab" data-selected-links="repo_pulls checks /lbuchs/WebAuthn/pulls" href="/lbuchs/WebAuthn/pulls">
    587. 

  587.               <svg class="octicon octicon-git-pull-request UnderlineNav-octicon d-none d-sm-inline" height="16" viewBox="0 0 16 16" version="1.1" width="16" aria-hidden="true"><path fill-rule="evenodd" d="M7.177 3.073L9.573.677A.25.25 0 0110 .854v4.792a.25.25 0 01-.427.177L7.177 3.427a.25.25 0 010-.354zM3.75 2.5a.75.75 0 100 1.5.75.75 0 000-1.5zm-2.25.75a2.25 2.25 0 113 2.122v5.256a2.251 2.251 0 11-1.5 0V5.372A2.25 2.25 0 011.5 3.25zM11 2.5h-1V4h1a1 1 0 011 1v5.628a2.251 2.251 0 101.5 0V5A2.5 2.5 0 0011 2.5zm1 10.25a.75.75 0 111.5 0 .75.75 0 01-1.5 0zM3.75 12a.75.75 0 100 1.5.75.75 0 000-1.5z"></path></svg>
    588. 

  588.             <span data-content="Pull requests">Pull requests</span>
    589. 

  589.               <span title="0" hidden="hidden" class="Counter ">0</span>
    590. 

  590. </a>
    591. 

  591. 

  592.       </li>
    593. 

  593.       <li class="d-flex">
    594. 

  594.         <a class="js-selected-navigation-item UnderlineNav-item hx_underlinenav-item no-wrap js-responsive-underlinenav-item" data-tab-item="i3actions-tab" data-hotkey="g a" data-ga-click="Repository, Navigation click, Actions tab" data-selected-links="repo_actions /lbuchs/WebAuthn/actions" href="/lbuchs/WebAuthn/actions">
    595. 

  595.               <svg class="octicon octicon-play UnderlineNav-octicon d-none d-sm-inline" height="16" viewBox="0 0 16 16" version="1.1" width="16" aria-hidden="true"><path fill-rule="evenodd" d="M1.5 8a6.5 6.5 0 1113 0 6.5 6.5 0 01-13 0zM8 0a8 8 0 100 16A8 8 0 008 0zM6.379 5.227A.25.25 0 006 5.442v5.117a.25.25 0 00.379.214l4.264-2.559a.25.25 0 000-.428L6.379 5.227z"></path></svg>
    596. 

  596.             <span data-content="Actions">Actions</span>
    597. 

  597.               <span title="Not available" class="Counter "></span>
    598. 

  598. </a>
    599. 

  599. 

  600.       </li>
    601. 

  601.       <li class="d-flex">
    602. 

  602.         <a class="js-selected-navigation-item UnderlineNav-item hx_underlinenav-item no-wrap js-responsive-underlinenav-item" data-tab-item="i4projects-tab" data-hotkey="g b" data-ga-click="Repository, Navigation click, Projects tab" data-selected-links="repo_projects new_repo_project repo_project /lbuchs/WebAuthn/projects" href="/lbuchs/WebAuthn/projects">
    603. 

  603.               <svg class="octicon octicon-project UnderlineNav-octicon d-none d-sm-inline" height="16" viewBox="0 0 16 16" version="1.1" width="16" aria-hidden="true"><path fill-rule="evenodd" d="M1.75 0A1.75 1.75 0 000 1.75v12.5C0 15.216.784 16 1.75 16h12.5A1.75 1.75 0 0016 14.25V1.75A1.75 1.75 0 0014.25 0H1.75zM1.5 1.75a.25.25 0 01.25-.25h12.5a.25.25 0 01.25.25v12.5a.25.25 0 01-.25.25H1.75a.25.25 0 01-.25-.25V1.75zM11.75 3a.75.75 0 00-.75.75v7.5a.75.75 0 001.5 0v-7.5a.75.75 0 00-.75-.75zm-8.25.75a.75.75 0 011.5 0v5.5a.75.75 0 01-1.5 0v-5.5zM8 3a.75.75 0 00-.75.75v3.5a.75.75 0 001.5 0v-3.5A.75.75 0 008 3z"></path></svg>
    604. 

  604.             <span data-content="Projects">Projects</span>
    605. 

  605.               <span title="0" hidden="hidden" class="Counter ">0</span>
    606. 

  606. </a>
    607. 

  607. 

  608.       </li>
    609. 

  609.       <li class="d-flex">
    610. 

  610.         <a class="js-selected-navigation-item UnderlineNav-item hx_underlinenav-item no-wrap js-responsive-underlinenav-item" data-tab-item="i5security-tab" data-hotkey="g s" data-ga-click="Repository, Navigation click, Security tab" data-selected-links="security overview alerts policy token_scanning code_scanning /lbuchs/WebAuthn/security" href="/lbuchs/WebAuthn/security">
    611. 

  611.               <svg class="octicon octicon-shield UnderlineNav-octicon d-none d-sm-inline" height="16" viewBox="0 0 16 16" version="1.1" width="16" aria-hidden="true"><path fill-rule="evenodd" d="M7.467.133a1.75 1.75 0 011.066 0l5.25 1.68A1.75 1.75 0 0115 3.48V7c0 1.566-.32 3.182-1.303 4.682-.983 1.498-2.585 2.813-5.032 3.855a1.7 1.7 0 01-1.33 0c-2.447-1.042-4.049-2.357-5.032-3.855C1.32 10.182 1 8.566 1 7V3.48a1.75 1.75 0 011.217-1.667l5.25-1.68zm.61 1.429a.25.25 0 00-.153 0l-5.25 1.68a.25.25 0 00-.174.238V7c0 1.358.275 2.666 1.057 3.86.784 1.194 2.121 2.34 4.366 3.297a.2.2 0 00.154 0c2.245-.956 3.582-2.104 4.366-3.298C13.225 9.666 13.5 8.36 13.5 7V3.48a.25.25 0 00-.174-.237l-5.25-1.68zM9 10.5a1 1 0 11-2 0 1 1 0 012 0zm-.25-5.75a.75.75 0 10-1.5 0v3a.75.75 0 001.5 0v-3z"></path></svg>
    612. 

  612.             <span data-content="Security">Security</span>
    613. 

  613.               <include-fragment src="/lbuchs/WebAuthn/security/overall-count" accept="text/fragment+html"></include-fragment>
    614. 

  614. </a>
    615. 

  615. 

  616.       </li>
    617. 

  617.       <li class="d-flex">
    618. 

  618.         <a class="js-selected-navigation-item UnderlineNav-item hx_underlinenav-item no-wrap js-responsive-underlinenav-item" data-tab-item="i6insights-tab" data-ga-click="Repository, Navigation click, Insights tab" data-selected-links="repo_graphs repo_contributors dependency_graph dependabot_updates pulse people /lbuchs/WebAuthn/pulse" href="/lbuchs/WebAuthn/pulse">
    619. 

  619.               <svg class="octicon octicon-graph UnderlineNav-octicon d-none d-sm-inline" height="16" viewBox="0 0 16 16" version="1.1" width="16" aria-hidden="true"><path fill-rule="evenodd" d="M1.5 1.75a.75.75 0 00-1.5 0v12.5c0 .414.336.75.75.75h14.5a.75.75 0 000-1.5H1.5V1.75zm14.28 2.53a.75.75 0 00-1.06-1.06L10 7.94 7.53 5.47a.75.75 0 00-1.06 0L3.22 8.72a.75.75 0 001.06 1.06L7 7.06l2.47 2.47a.75.75 0 001.06 0l5.25-5.25z"></path></svg>
    620. 

  620.             <span data-content="Insights">Insights</span>
    621. 

  621.               <span title="Not available" class="Counter "></span>
    622. 

  622. </a>
    623. 

  623. 

  624.       </li>
    625. 

  625. 

  626. </ul>        <div class="position-absolute right-0 pr-3 pr-md-4 pr-lg-5 js-responsive-underlinenav-overflow" style="visibility:hidden;">
    627. 

  627.       <details class="details-overlay details-reset position-relative">
    628. 

  628.   <summary role="button">
    629. 

  629.     <div class="UnderlineNav-item mr-0 border-0">
    630. 

  630.             <svg class="octicon octicon-kebab-horizontal" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="M8 9a1.5 1.5 0 100-3 1.5 1.5 0 000 3zM1.5 9a1.5 1.5 0 100-3 1.5 1.5 0 000 3zm13 0a1.5 1.5 0 100-3 1.5 1.5 0 000 3z"></path></svg>
    631. 

  631.             <span class="sr-only">More</span>
    632. 

  632.           </div>
    633. 

  633. </summary>  <div>
    634. 

  634.     <details-menu role="menu" class="dropdown-menu dropdown-menu-sw ">
    635. 

  635.   
    636. 

  636.             <ul>
    637. 

  637.                 <li data-menu-item="i0code-tab" hidden>
    638. 

  638.                   <a role="menuitem" class="js-selected-navigation-item dropdown-item" data-selected-links=" /lbuchs/WebAuthn" href="/lbuchs/WebAuthn">
    639. 

  639.                     Code
    640. 

  640. </a>                </li>
    641. 

  641.                 <li data-menu-item="i1issues-tab" hidden>
    642. 

  642.                   <a role="menuitem" class="js-selected-navigation-item dropdown-item" data-selected-links=" /lbuchs/WebAuthn/issues" href="/lbuchs/WebAuthn/issues">
    643. 

  643.                     Issues
    644. 

  644. </a>                </li>
    645. 

  645.                 <li data-menu-item="i2pull-requests-tab" hidden>
    646. 

  646.                   <a role="menuitem" class="js-selected-navigation-item dropdown-item" data-selected-links=" /lbuchs/WebAuthn/pulls" href="/lbuchs/WebAuthn/pulls">
    647. 

  647.                     Pull requests
    648. 

  648. </a>                </li>
    649. 

  649.                 <li data-menu-item="i3actions-tab" hidden>
    650. 

  650.                   <a role="menuitem" class="js-selected-navigation-item dropdown-item" data-selected-links=" /lbuchs/WebAuthn/actions" href="/lbuchs/WebAuthn/actions">
    651. 

  651.                     Actions
    652. 

  652. </a>                </li>
    653. 

  653.                 <li data-menu-item="i4projects-tab" hidden>
    654. 

  654.                   <a role="menuitem" class="js-selected-navigation-item dropdown-item" data-selected-links=" /lbuchs/WebAuthn/projects" href="/lbuchs/WebAuthn/projects">
    655. 

  655.                     Projects
    656. 

  656. </a>                </li>
    657. 

  657.                 <li data-menu-item="i5security-tab" hidden>
    658. 

  658.                   <a role="menuitem" class="js-selected-navigation-item dropdown-item" data-selected-links=" /lbuchs/WebAuthn/security" href="/lbuchs/WebAuthn/security">
    659. 

  659.                     Security
    660. 

  660. </a>                </li>
    661. 

  661.                 <li data-menu-item="i6insights-tab" hidden>
    662. 

  662.                   <a role="menuitem" class="js-selected-navigation-item dropdown-item" data-selected-links=" /lbuchs/WebAuthn/pulse" href="/lbuchs/WebAuthn/pulse">
    663. 

  663.                     Insights
    664. 

  664. </a>                </li>
    665. 

  665.             </ul>
    666. 

  666. 

  667. </details-menu>
    668. 

  668. </div></details>    </div>
    669. 

  669. 

  670. </nav>
    671. 

  671.   </div>
    672. 

  672. 

  673. 

  674. <div class="container-xl clearfix new-discussion-timeline px-3 px-md-4 px-lg-5">
    675. 

  675.   <div class="repository-content " >
    676. 

  676. 

  677.     
    678. 

  678.       
    679. 

  679.   
    680. 

  680. 

  681. 

  682.     <a class="d-none js-permalink-shortcut" data-hotkey="y" href="/lbuchs/WebAuthn/blob/e62a6615894daaf061f91bc274064c5773074f81/src/Attestation/Format/U2f.php">Permalink</a>
    683. 

  683. 

  684.     <!-- blob contrib key: blob_contributors:v22:362c2f001e0a021defec58b1d88f2bcc162f20859abcd28e71ea63851dfca542 -->
    685. 

  685. 

  686.     <div class="d-flex flex-items-start flex-shrink-0 pb-3 flex-wrap flex-md-nowrap flex-justify-between flex-md-justify-start">
    687. 

  687.       
    688. 

  688. <div class="position-relative">
    689. 

  689.   <details class="details-reset details-overlay mr-0 mb-0 " id="branch-select-menu">
    690. 

  690.     <summary class="btn css-truncate"
    691. 

  691.             data-hotkey="w"
    692. 

  692.             title="Switch branches or tags">
    693. 

  693.       <svg class="octicon octicon-git-branch text-gray" height="16" viewBox="0 0 16 16" version="1.1" width="16" aria-hidden="true"><path fill-rule="evenodd" d="M11.75 2.5a.75.75 0 100 1.5.75.75 0 000-1.5zm-2.25.75a2.25 2.25 0 113 2.122V6A2.5 2.5 0 0110 8.5H6a1 1 0 00-1 1v1.128a2.251 2.251 0 11-1.5 0V5.372a2.25 2.25 0 111.5 0v1.836A2.492 2.492 0 016 7h4a1 1 0 001-1v-.628A2.25 2.25 0 019.5 3.25zM4.25 12a.75.75 0 100 1.5.75.75 0 000-1.5zM3.5 3.25a.75.75 0 111.5 0 .75.75 0 01-1.5 0z"></path></svg>
    694. 

  694.       <span class="css-truncate-target" data-menu-button>master</span>
    695. 

  695.       <span class="dropdown-caret"></span>
    696. 

  696.     </summary>
    697. 

  697. 

  698.     <details-menu class="SelectMenu SelectMenu--hasFilter" src="/lbuchs/WebAuthn/refs/master/src/Attestation/Format/U2f.php?source_action=show&amp;source_controller=blob" preload>
    699. 

  699.       <div class="SelectMenu-modal">
    700. 

  700.         <include-fragment class="SelectMenu-loading" aria-label="Menu is loading">
    701. 

  701.           <svg class="octicon octicon-octoface anim-pulse" height="32" viewBox="0 0 24 24" version="1.1" width="32" aria-hidden="true"><path d="M7.75 11c-.69 0-1.25.56-1.25 1.25v1.5a1.25 1.25 0 102.5 0v-1.5C9 11.56 8.44 11 7.75 11zm1.27 4.5a.469.469 0 01.48-.5h5a.47.47 0 01.48.5c-.116 1.316-.759 2.5-2.98 2.5s-2.864-1.184-2.98-2.5zm7.23-4.5c-.69 0-1.25.56-1.25 1.25v1.5a1.25 1.25 0 102.5 0v-1.5c0-.69-.56-1.25-1.25-1.25z"></path><path fill-rule="evenodd" d="M21.255 3.82a1.725 1.725 0 00-2.141-1.195c-.557.16-1.406.44-2.264.866-.78.386-1.647.93-2.293 1.677A18.442 18.442 0 0012 5c-.93 0-1.784.059-2.569.17-.645-.74-1.505-1.28-2.28-1.664a13.876 13.876 0 00-2.265-.866 1.725 1.725 0 00-2.141 1.196 23.645 23.645 0 00-.69 3.292c-.125.97-.191 2.07-.066 3.112C1.254 11.882 1 13.734 1 15.527 1 19.915 3.13 23 12 23c8.87 0 11-3.053 11-7.473 0-1.794-.255-3.647-.99-5.29.127-1.046.06-2.15-.066-3.125a23.652 23.652 0 00-.689-3.292zM20.5 14c.5 3.5-1.5 6.5-8.5 6.5s-9-3-8.5-6.5c.583-4 3-6 8.5-6s7.928 2 8.5 6z"></path></svg>
    702. 

  702.         </include-fragment>
    703. 

  703.       </div>
    704. 

  704.     </details-menu>
    705. 

  705.   </details>
    706. 

  706. 

  707. </div>
    708. 

  708. 

  709.       <h2 id="blob-path" class="breadcrumb flex-auto min-width-0 text-normal mx-0 mx-md-3 width-full width-md-auto flex-order-1 flex-md-order-none mt-3 mt-md-0">
    710. 

  710.         <span class="js-repo-root text-bold"><span class="js-path-segment d-inline-block wb-break-all"><a data-pjax="true" href="/lbuchs/WebAuthn"><span>WebAuthn</span></a></span></span><span class="separator">/</span><span class="js-path-segment d-inline-block wb-break-all"><a data-pjax="true" href="/lbuchs/WebAuthn/tree/master/src"><span>src</span></a></span><span class="separator">/</span><span class="js-path-segment d-inline-block wb-break-all"><a data-pjax="true" href="/lbuchs/WebAuthn/tree/master/src/Attestation"><span>Attestation</span></a></span><span class="separator">/</span><span class="js-path-segment d-inline-block wb-break-all"><a data-pjax="true" href="/lbuchs/WebAuthn/tree/master/src/Attestation/Format"><span>Format</span></a></span><span class="separator">/</span><strong class="final-path">U2f.php</strong>
    711. 

  711.           <span class="separator">/</span><details class="details-reset details-overlay d-inline" id="jumpto-symbol-select-menu">
    712. 

  712.   <summary class="btn-link link-gray css-truncate" aria-haspopup="true" data-hotkey="r" data-hydro-click="{&quot;event_type&quot;:&quot;code_navigation.click_on_blob_definitions&quot;,&quot;payload&quot;:{&quot;action&quot;:&quot;click_on_blob_definitions&quot;,&quot;repository_id&quot;:149437753,&quot;ref&quot;:&quot;master&quot;,&quot;language&quot;:&quot;PHP&quot;,&quot;originating_url&quot;:&quot;https://github.com/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="ee69c967beb835fc4d88a91ec7718da59239a1c95613365bbff302162d0d1a1f">
    713. 

  713.       <svg class="octicon octicon-code" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M4.72 3.22a.75.75 0 011.06 1.06L2.06 8l3.72 3.72a.75.75 0 11-1.06 1.06L.47 8.53a.75.75 0 010-1.06l4.25-4.25zm6.56 0a.75.75 0 10-1.06 1.06L13.94 8l-3.72 3.72a.75.75 0 101.06 1.06l4.25-4.25a.75.75 0 000-1.06l-4.25-4.25z"></path></svg>
    714. 

  714.     <span data-menu-button>Jump to</span>
    715. 

  715.     <span class="dropdown-caret"></span>
    716. 

  716.   </summary>
    717. 

  717.   <details-menu class="SelectMenu SelectMenu--hasFilter" role="menu">
    718. 

  718.     <div class="SelectMenu-modal">
    719. 

  719.       <header class="SelectMenu-header">
    720. 

  720.         <span class="SelectMenu-title">Code definitions</span>
    721. 

  721.         <button class="SelectMenu-closeButton" type="button" data-toggle-for="jumpto-symbol-select-menu">
    722. 

  722.           <svg aria-label="Close menu" class="octicon octicon-x" viewBox="0 0 16 16" version="1.1" width="16" height="16" role="img"><path fill-rule="evenodd" d="M3.72 3.72a.75.75 0 011.06 0L8 6.94l3.22-3.22a.75.75 0 111.06 1.06L9.06 8l3.22 3.22a.75.75 0 11-1.06 1.06L8 9.06l-3.22 3.22a.75.75 0 01-1.06-1.06L6.94 8 3.72 4.78a.75.75 0 010-1.06z"></path></svg>
    723. 

  723.         </button>
    724. 

  724.       </header>
    725. 

  725.         <div class="SelectMenu-filter">
    726. 

  726.           <input
    727. 

  727.             class="SelectMenu-input form-control js-filterable-field"
    728. 

  728.             id="jumpto-symbols-filter-field"
    729. 

  729.             type="text"
    730. 

  730.             autocomplete="off"
    731. 

  731.             spellcheck="false"
    732. 

  732.             autofocus
    733. 

  733.             placeholder="Filter definitions"
    734. 

  734.             aria-label="Filter definitions">
    735. 

  735.         </div>
    736. 

  736.       <div class="SelectMenu-list">
    737. 

  737.         <div data-filterable-for="jumpto-symbols-filter-field" data-filterable-type="substring">
    738. 

  738.             <a class="SelectMenu-item d-flex flex-justify-between css-truncate" role="menuitemradio" aria-checked="false" rel="nofollow" data-hydro-click="{&quot;event_type&quot;:&quot;code_navigation.navigate_to_blob_definition&quot;,&quot;payload&quot;:{&quot;action&quot;:&quot;navigate_to_blob_definition&quot;,&quot;repository_id&quot;:149437753,&quot;ref&quot;:&quot;master&quot;,&quot;language&quot;:&quot;PHP&quot;,&quot;originating_url&quot;:&quot;https://github.com/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="09e4c2798380756490d8fe4e59d22d3ae7cb1c2ab57d684941467baf3ecbcc0e" href="/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php#L9">
    739. 

  739.               <svg class="octicon octicon-check SelectMenu-icon SelectMenu-icon--check" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M13.78 4.22a.75.75 0 010 1.06l-7.25 7.25a.75.75 0 01-1.06 0L2.22 9.28a.75.75 0 011.06-1.06L6 10.94l6.72-6.72a.75.75 0 011.06 0z"></path></svg>
    740. 

  740.               <span class="flex-auto css-truncate-target" data-menu-button-text>U2f</span>
    741. 

  741.               <span class="flex-auto d-flex flex-justify-end">Class</span>
    742. 

  742. </a>            <a class="SelectMenu-item d-flex flex-justify-between css-truncate" role="menuitemradio" aria-checked="false" rel="nofollow" data-hydro-click="{&quot;event_type&quot;:&quot;code_navigation.navigate_to_blob_definition&quot;,&quot;payload&quot;:{&quot;action&quot;:&quot;navigate_to_blob_definition&quot;,&quot;repository_id&quot;:149437753,&quot;ref&quot;:&quot;master&quot;,&quot;language&quot;:&quot;PHP&quot;,&quot;originating_url&quot;:&quot;https://github.com/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="09e4c2798380756490d8fe4e59d22d3ae7cb1c2ab57d684941467baf3ecbcc0e" href="/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php#L14">
    743. 

  743.               <svg class="octicon octicon-check SelectMenu-icon SelectMenu-icon--check" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M13.78 4.22a.75.75 0 010 1.06l-7.25 7.25a.75.75 0 01-1.06 0L2.22 9.28a.75.75 0 011.06-1.06L6 10.94l6.72-6.72a.75.75 0 011.06 0z"></path></svg>
    744. 

  744.               <span class="flex-auto css-truncate-target" data-menu-button-text>__construct</span>
    745. 

  745.               <span class="flex-auto d-flex flex-justify-end">Function</span>
    746. 

  746. </a>            <a class="SelectMenu-item d-flex flex-justify-between css-truncate" role="menuitemradio" aria-checked="false" rel="nofollow" data-hydro-click="{&quot;event_type&quot;:&quot;code_navigation.navigate_to_blob_definition&quot;,&quot;payload&quot;:{&quot;action&quot;:&quot;navigate_to_blob_definition&quot;,&quot;repository_id&quot;:149437753,&quot;ref&quot;:&quot;master&quot;,&quot;language&quot;:&quot;PHP&quot;,&quot;originating_url&quot;:&quot;https://github.com/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="09e4c2798380756490d8fe4e59d22d3ae7cb1c2ab57d684941467baf3ecbcc0e" href="/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php#L45">
    747. 

  747.               <svg class="octicon octicon-check SelectMenu-icon SelectMenu-icon--check" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M13.78 4.22a.75.75 0 010 1.06l-7.25 7.25a.75.75 0 01-1.06 0L2.22 9.28a.75.75 0 011.06-1.06L6 10.94l6.72-6.72a.75.75 0 011.06 0z"></path></svg>
    748. 

  748.               <span class="flex-auto css-truncate-target" data-menu-button-text>getCertificatePem</span>
    749. 

  749.               <span class="flex-auto d-flex flex-justify-end">Function</span>
    750. 

  750. </a>            <a class="SelectMenu-item d-flex flex-justify-between css-truncate" role="menuitemradio" aria-checked="false" rel="nofollow" data-hydro-click="{&quot;event_type&quot;:&quot;code_navigation.navigate_to_blob_definition&quot;,&quot;payload&quot;:{&quot;action&quot;:&quot;navigate_to_blob_definition&quot;,&quot;repository_id&quot;:149437753,&quot;ref&quot;:&quot;master&quot;,&quot;language&quot;:&quot;PHP&quot;,&quot;originating_url&quot;:&quot;https://github.com/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="09e4c2798380756490d8fe4e59d22d3ae7cb1c2ab57d684941467baf3ecbcc0e" href="/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php#L55">
    751. 

  751.               <svg class="octicon octicon-check SelectMenu-icon SelectMenu-icon--check" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M13.78 4.22a.75.75 0 010 1.06l-7.25 7.25a.75.75 0 01-1.06 0L2.22 9.28a.75.75 0 011.06-1.06L6 10.94l6.72-6.72a.75.75 0 011.06 0z"></path></svg>
    752. 

  752.               <span class="flex-auto css-truncate-target" data-menu-button-text>validateAttestation</span>
    753. 

  753.               <span class="flex-auto d-flex flex-justify-end">Function</span>
    754. 

  754. </a>            <a class="SelectMenu-item d-flex flex-justify-between css-truncate" role="menuitemradio" aria-checked="false" rel="nofollow" data-hydro-click="{&quot;event_type&quot;:&quot;code_navigation.navigate_to_blob_definition&quot;,&quot;payload&quot;:{&quot;action&quot;:&quot;navigate_to_blob_definition&quot;,&quot;repository_id&quot;:149437753,&quot;ref&quot;:&quot;master&quot;,&quot;language&quot;:&quot;PHP&quot;,&quot;originating_url&quot;:&quot;https://github.com/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="09e4c2798380756490d8fe4e59d22d3ae7cb1c2ab57d684941467baf3ecbcc0e" href="/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php#L81">
    755. 

  755.               <svg class="octicon octicon-check SelectMenu-icon SelectMenu-icon--check" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M13.78 4.22a.75.75 0 010 1.06l-7.25 7.25a.75.75 0 01-1.06 0L2.22 9.28a.75.75 0 011.06-1.06L6 10.94l6.72-6.72a.75.75 0 011.06 0z"></path></svg>
    756. 

  756.               <span class="flex-auto css-truncate-target" data-menu-button-text>validateRootCertificate</span>
    757. 

  757.               <span class="flex-auto d-flex flex-justify-end">Function</span>
    758. 

  758. </a>        </div>
    759. 

  759.       </div>
    760. 

  760.       <footer class="SelectMenu-footer">
    761. 

  761.         <div class="d-flex flex-justify-between">
    762. 

  762.           Code navigation index up-to-date
    763. 

  763.           <svg class="octicon octicon-dot-fill text-green" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M8 4a4 4 0 100 8 4 4 0 000-8z"></path></svg>
    764. 

  764.         </div>
    765. 

  765.       </footer>
    766. 

  766.     </div>
    767. 

  767.   </details-menu>
    768. 

  768. </details>
    769. 

  769. 

  770.       </h2>
    771. 

  771.       <a href="/lbuchs/WebAuthn/find/master"
    772. 

  772.             class="js-pjax-capture-input btn mr-2 d-none d-md-block"
    773. 

  773.             data-pjax
    774. 

  774.             data-hotkey="t">
    775. 

  775.         Go to file
    776. 

  776.       </a>
    777. 

  777. 

  778.       <details id="blob-more-options-details" class="details-overlay details-reset position-relative">
    779. 

  779.   <summary role="button" type="button" class="btn ">
    780. 

  780.     <svg aria-label="More options" class="octicon octicon-kebab-horizontal" height="16" viewBox="0 0 16 16" version="1.1" width="16" role="img"><path d="M8 9a1.5 1.5 0 100-3 1.5 1.5 0 000 3zM1.5 9a1.5 1.5 0 100-3 1.5 1.5 0 000 3zm13 0a1.5 1.5 0 100-3 1.5 1.5 0 000 3z"></path></svg>
    781. 

  781. </summary>  <div>
    782. 

  782.     <ul class="dropdown-menu dropdown-menu-sw">
    783. 

  783.             <li class="d-block d-md-none">
    784. 

  784.               <a class="dropdown-item d-flex flex-items-baseline" data-hydro-click="{&quot;event_type&quot;:&quot;repository.click&quot;,&quot;payload&quot;:{&quot;target&quot;:&quot;FIND_FILE_BUTTON&quot;,&quot;repository_id&quot;:149437753,&quot;originating_url&quot;:&quot;https://github.com/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="584a2d97f3fc6b2c52184e8813afb9d4e785ab04da743d5288e40cf51f994efb" data-ga-click="Repository, find file, location:repo overview" data-hotkey="t" data-pjax="true" href="/lbuchs/WebAuthn/find/master">
    785. 

  785.                 <span class="flex-auto">Go to file</span>
    786. 

  786.                 <span class="text-small text-gray" aria-hidden="true">T</span>
    787. 

  787. </a>            </li>
    788. 

  788.             <li data-toggle-for="blob-more-options-details">
    789. 

  789.               <button type="button" data-toggle-for="jumpto-line-details-dialog" class="btn-link dropdown-item">
    790. 

  790.                 <span class="d-flex flex-items-baseline">
    791. 

  791.                   <span class="flex-auto">Go to line</span>
    792. 

  792.                   <span class="text-small text-gray" aria-hidden="true">L</span>
    793. 

  793.                 </span>
    794. 

  794.               </button>
    795. 

  795.             </li>
    796. 

  796.             <li data-toggle-for="blob-more-options-details">
    797. 

  797.               <button type="button" data-toggle-for="jumpto-symbol-select-menu" class="btn-link dropdown-item">
    798. 

  798.                 <span class="d-flex flex-items-baseline">
    799. 

  799.                   <span class="flex-auto">Go to definition</span>
    800. 

  800.                   <span class="text-small text-gray" aria-hidden="true">R</span>
    801. 

  801.                 </span>
    802. 

  802.               </button>
    803. 

  803.             </li>
    804. 

  804.             <li class="dropdown-divider" role="none"></li>
    805. 

  805.             <li>
    806. 

  806.               <clipboard-copy value="src/Attestation/Format/U2f.php" class="dropdown-item cursor-pointer" data-toggle-for="blob-more-options-details">
    807. 

  807.                 Copy path
    808. 

  808.               </clipboard-copy>
    809. 

  809.             </li>
    810. 

  810.           </ul>
    811. 

  811. </div></details>    </div>
    812. 

  812. 

  813. 

  814. 

  815.     <div class="Box d-flex flex-column flex-shrink-0 mb-3">
    816. 

  816.       
    817. 

  817.   <div class="Box-header Box-header--blue Details js-details-container">
    818. 

  818.       <div class="d-flex flex-items-center">
    819. 

  819.         <span class="flex-shrink-0 ml-n1 mr-n1 mt-n1 mb-n1">
    820. 

  820.           <a rel="author" data-skip-pjax="true" data-hovercard-type="user" data-hovercard-url="/users/lbuchs/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="/lbuchs"><img class="avatar avatar-user" src="https://avatars3.githubusercontent.com/u/37619779?s=48&amp;v=4" width="24" height="24" alt="@lbuchs" /></a>
    821. 

  821.         </span>
    822. 

  822.         <div class="flex-1 d-flex flex-items-center ml-3 min-width-0">
    823. 

  823.           <div class="css-truncate css-truncate-overflow">
    824. 

  824.             <a class="text-bold link-gray-dark" rel="author" data-hovercard-type="user" data-hovercard-url="/users/lbuchs/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="/lbuchs">lbuchs</a>
    825. 

  825. 

  826.               <span>
    827. 

  827.                 <a data-pjax="true" title="Bugfix u2f" class="link-gray" href="/lbuchs/WebAuthn/commit/e62a6615894daaf061f91bc274064c5773074f81">Bugfix u2f</a>
    828. 

  828.               </span>
    829. 

  829.           </div>
    830. 

  830. 

  831. 

  832.           <span class="ml-2">
    833. 

  833.             <include-fragment accept="text/fragment+html" src="/lbuchs/WebAuthn/commit/e62a6615894daaf061f91bc274064c5773074f81/rollup?direction=e" class="d-inline"></include-fragment>
    834. 

  834.           </span>
    835. 

  835.         </div>
    836. 

  836.         <div class="ml-3 d-flex flex-shrink-0 flex-items-center flex-justify-end text-gray no-wrap">
    837. 

  837.           <span class="d-none d-md-inline">
    838. 

  838.             <span>Latest commit</span>
    839. 

  839.             <a class="text-small text-mono link-gray" href="/lbuchs/WebAuthn/commit/e62a6615894daaf061f91bc274064c5773074f81" data-pjax>e62a661</a>
    840. 

  840.             <span itemprop="dateModified"><relative-time datetime="2021-01-04T09:21:11Z" class="no-wrap">Jan 4, 2021</relative-time></span>
    841. 

  841.           </span>
    842. 

  842. 

  843.           <a data-pjax href="/lbuchs/WebAuthn/commits/e62a6615894daaf061f91bc274064c5773074f81/src/Attestation/Format/U2f.php" class="ml-3 no-wrap link-gray-dark no-underline">
    844. 

  844.             <svg class="octicon octicon-history text-gray" height="16" viewBox="0 0 16 16" version="1.1" width="16" aria-hidden="true"><path fill-rule="evenodd" d="M1.643 3.143L.427 1.927A.25.25 0 000 2.104V5.75c0 .138.112.25.25.25h3.646a.25.25 0 00.177-.427L2.715 4.215a6.5 6.5 0 11-1.18 4.458.75.75 0 10-1.493.154 8.001 8.001 0 101.6-5.684zM7.75 4a.75.75 0 01.75.75v2.992l2.028.812a.75.75 0 01-.557 1.392l-2.5-1A.75.75 0 017 8.25v-3.5A.75.75 0 017.75 4z"></path></svg>
    845. 

  845.             <span class="d-none d-sm-inline">
    846. 

  846.               <strong>History</strong>
    847. 

  847.             </span>
    848. 

  848.           </a>
    849. 

  849.         </div>
    850. 

  850.       </div>
    851. 

  851. 

  852.   </div>
    853. 

  853. 

  854.   <div class="Box-body d-flex flex-items-center flex-auto border-bottom-0 flex-wrap" >
    855. 

  855.     <details class="details-reset details-overlay details-overlay-dark lh-default text-gray-dark float-left mr-3" id="blob_contributors_box">
    856. 

  856.       <summary class="link-gray-dark">
    857. 

  857.         <svg class="octicon octicon-people text-gray" height="16" viewBox="0 0 16 16" version="1.1" width="16" aria-hidden="true"><path fill-rule="evenodd" d="M5.5 3.5a2 2 0 100 4 2 2 0 000-4zM2 5.5a3.5 3.5 0 115.898 2.549 5.507 5.507 0 013.034 4.084.75.75 0 11-1.482.235 4.001 4.001 0 00-7.9 0 .75.75 0 01-1.482-.236A5.507 5.507 0 013.102 8.05 3.49 3.49 0 012 5.5zM11 4a.75.75 0 100 1.5 1.5 1.5 0 01.666 2.844.75.75 0 00-.416.672v.352a.75.75 0 00.574.73c1.2.289 2.162 1.2 2.522 2.372a.75.75 0 101.434-.44 5.01 5.01 0 00-2.56-3.012A3 3 0 0011 4z"></path></svg>
    858. 

  858.         <strong>2</strong>
    859. 

  859.         
    860. 

  860.         contributors
    861. 

  861.       </summary>
    862. 

  862.       <details-dialog
    863. 

  863.         class="Box Box--overlay d-flex flex-column anim-fade-in fast"
    864. 

  864.         aria-label="Users who have contributed to this file"
    865. 

  865.         src="/lbuchs/WebAuthn/contributors-list/e62a6615894daaf061f91bc274064c5773074f81/src/Attestation/Format/U2f.php" preload>
    866. 

  866.         <div class="Box-header">
    867. 

  867.           <button class="Box-btn-octicon btn-octicon float-right" type="button" aria-label="Close dialog" data-close-dialog>
    868. 

  868.             <svg class="octicon octicon-x" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M3.72 3.72a.75.75 0 011.06 0L8 6.94l3.22-3.22a.75.75 0 111.06 1.06L9.06 8l3.22 3.22a.75.75 0 11-1.06 1.06L8 9.06l-3.22 3.22a.75.75 0 01-1.06-1.06L6.94 8 3.72 4.78a.75.75 0 010-1.06z"></path></svg>
    869. 

  869.           </button>
    870. 

  870.           <h3 class="Box-title">
    871. 

  871.             Users who have contributed to this file
    872. 

  872.           </h3>
    873. 

  873.         </div>
    874. 

  874.         <include-fragment>
    875. 

  875.           <svg viewBox="0 0 16 16" fill="none" style="box-sizing: content-box; color: var(--color-icon-primary);" class="my-3 mx-auto d-block" width="32" height="32">
    876. 

  876.   <circle cx="8" cy="8" r="7" stroke="currentColor" stroke-opacity="0.25" stroke-width="2" vector-effect="non-scaling-stroke" />
    877. 

  877.   <path d="M15 8a7.002 7.002 0 00-7-7" stroke="currentColor" stroke-width="2" stroke-linecap="round" vector-effect="non-scaling-stroke">
    878. 

  878.     <animateTransform attributeName="transform" type="rotate" from="0 8 8" to="360 8 8" dur="1s" repeatCount="indefinite" />
    879. 

  879.   </path>
    880. 

  880. </svg>
    881. 

  881.         </include-fragment>
    882. 

  882.       </details-dialog>
    883. 

  883.     </details>
    884. 

  884.       <span class="">
    885. 

  885.     <a class="avatar-link" data-hovercard-type="user" data-hovercard-url="/users/lbuchs/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="/lbuchs/WebAuthn/commits/e62a6615894daaf061f91bc274064c5773074f81/src/Attestation/Format/U2f.php?author=lbuchs">
    886. 

  886.       <img class="avatar mr-2 avatar-user" src="https://avatars3.githubusercontent.com/u/37619779?s=48&amp;v=4" width="24" height="24" alt="@lbuchs" /> 
    887. 

  887. </a>    <a class="avatar-link" data-hovercard-type="user" data-hovercard-url="/users/BenjaminHae/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="/lbuchs/WebAuthn/commits/e62a6615894daaf061f91bc274064c5773074f81/src/Attestation/Format/U2f.php?author=BenjaminHae">
    888. 

  888.       <img class="avatar mr-2 avatar-user" src="https://avatars0.githubusercontent.com/u/7386033?s=48&amp;v=4" width="24" height="24" alt="@BenjaminHae" /> 
    889. 

  889. </a>
    890. 

  890. </span>
    891. 

  891. 

  892.   </div>
    893. 

  893.     </div>
    894. 

  894. 

  895. 

  896. 

  897. 

  898. 

  899. 

  900.     <div class="Box mt-3 position-relative
    901. 

  901.       ">
    902. 

  902.       
    903. 

  903. <div class="Box-header py-2 d-flex flex-column flex-shrink-0 flex-md-row flex-md-items-center">
    904. 

  904.   <div class="text-mono f6 flex-auto pr-3 flex-order-2 flex-md-order-1 mt-2 mt-md-0">
    905. 

  905. 

  906.       93 lines (74 sloc)
    907. 

  907.       <span class="file-info-divider"></span>
    908. 

  908.     3.43 KB
    909. 

  909.   </div>
    910. 

  910. 

  911.   <div class="d-flex py-1 py-md-0 flex-auto flex-order-1 flex-md-order-2 flex-sm-grow-0 flex-justify-between">
    912. 

  912. 

  913.     <div class="BtnGroup">
    914. 

  914.       <a href="/lbuchs/WebAuthn/raw/master/src/Attestation/Format/U2f.php" id="raw-url" role="button" class="btn btn-sm BtnGroup-item ">Raw</a>
    915. 

  915.         <a href="/lbuchs/WebAuthn/blame/master/src/Attestation/Format/U2f.php" data-hotkey="b" role="button" class="btn js-update-url-with-hash btn-sm BtnGroup-item ">Blame</a>
    916. 

  916.     </div>
    917. 

  917. 

  918.     <div>
    919. 

  919.           <a class="btn-octicon tooltipped tooltipped-nw js-remove-unless-platform"
    920. 

  920.              data-platforms="windows,mac"
    921. 

  921.              href="https://desktop.github.com"
    922. 

  922.              aria-label="Open this file in GitHub Desktop"
    923. 

  923.              data-ga-click="Repository, open with desktop">
    924. 

  924.               <svg class="octicon octicon-device-desktop" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M1.75 2.5h12.5a.25.25 0 01.25.25v7.5a.25.25 0 01-.25.25H1.75a.25.25 0 01-.25-.25v-7.5a.25.25 0 01.25-.25zM14.25 1H1.75A1.75 1.75 0 000 2.75v7.5C0 11.216.784 12 1.75 12h3.727c-.1 1.041-.52 1.872-1.292 2.757A.75.75 0 004.75 16h6.5a.75.75 0 00.565-1.243c-.772-.885-1.193-1.716-1.292-2.757h3.727A1.75 1.75 0 0016 10.25v-7.5A1.75 1.75 0 0014.25 1zM9.018 12H6.982a5.72 5.72 0 01-.765 2.5h3.566a5.72 5.72 0 01-.765-2.5z"></path></svg>
    925. 

  925.           </a>
    926. 

  926. 

  927.           <a href="/login?return_to=%2Flbuchs%2FWebAuthn%2Fblob%2Fmaster%2Fsrc%2FAttestation%2FFormat%2FU2f.php" class="btn-octicon disabled tooltipped tooltipped-nw"
    928. 

  928.             aria-label="You must be signed in to make or propose changes">
    929. 

  929.             <svg class="octicon octicon-pencil" height="16" viewBox="0 0 16 16" version="1.1" width="16" aria-hidden="true"><path fill-rule="evenodd" d="M11.013 1.427a1.75 1.75 0 012.474 0l1.086 1.086a1.75 1.75 0 010 2.474l-8.61 8.61c-.21.21-.47.364-.756.445l-3.251.93a.75.75 0 01-.927-.928l.929-3.25a1.75 1.75 0 01.445-.758l8.61-8.61zm1.414 1.06a.25.25 0 00-.354 0L10.811 3.75l1.439 1.44 1.263-1.263a.25.25 0 000-.354l-1.086-1.086zM11.189 6.25L9.75 4.81l-6.286 6.287a.25.25 0 00-.064.108l-.558 1.953 1.953-.558a.249.249 0 00.108-.064l6.286-6.286z"></path></svg>
    930. 

  930.           </a>
    931. 

  931.           <a href="/login?return_to=%2Flbuchs%2FWebAuthn%2Fblob%2Fmaster%2Fsrc%2FAttestation%2FFormat%2FU2f.php" class="btn-octicon btn-octicon-danger disabled tooltipped tooltipped-nw"
    932. 

  932.             aria-label="You must be signed in to make or propose changes">
    933. 

  933.             <svg class="octicon octicon-trashcan" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M6.5 1.75a.25.25 0 01.25-.25h2.5a.25.25 0 01.25.25V3h-3V1.75zm4.5 0V3h2.25a.75.75 0 010 1.5H2.75a.75.75 0 010-1.5H5V1.75C5 .784 5.784 0 6.75 0h2.5C10.216 0 11 .784 11 1.75zM4.496 6.675a.75.75 0 10-1.492.15l.66 6.6A1.75 1.75 0 005.405 15h5.19c.9 0 1.652-.681 1.741-1.576l.66-6.6a.75.75 0 00-1.492-.149l-.66 6.6a.25.25 0 01-.249.225h-5.19a.25.25 0 01-.249-.225l-.66-6.6z"></path></svg>
    934. 

  934.           </a>
    935. 

  935.     </div>
    936. 

  936.   </div>
    937. 

  937. </div>
    938. 

  938. 

  939.       
    940. 

  940. 

  941.   <div itemprop="text" class="Box-body p-0 blob-wrapper data type-php  gist-border-0">
    942. 

  942.       
    943. 

  943. <table class="highlight tab-size js-file-line-container" data-tab-size="8" data-paste-markdown-skip>
    944. 

  944.       <tr>
    945. 

  945.         <td id="L1" class="blob-num js-line-number" data-line-number="1"></td>
    946. 

  946.         <td id="LC1" class="blob-code blob-code-inner js-file-line"><span class=pl-ent>&lt;?php</span></td>
    947. 

  947.       </tr>
    948. 

  948.       <tr>
    949. 

  949.         <td id="L2" class="blob-num js-line-number" data-line-number="2"></td>
    950. 

  950.         <td id="LC2" class="blob-code blob-code-inner js-file-line">
    951. 

  951. </td>
    952. 

  952.       </tr>
    953. 

  953.       <tr>
    954. 

  954.         <td id="L3" class="blob-num js-line-number" data-line-number="3"></td>
    955. 

  955.         <td id="LC3" class="blob-code blob-code-inner js-file-line">
    956. 

  956. </td>
    957. 

  957.       </tr>
    958. 

  958.       <tr>
    959. 

  959.         <td id="L4" class="blob-num js-line-number" data-line-number="4"></td>
    960. 

  960.         <td id="LC4" class="blob-code blob-code-inner js-file-line"><span class=pl-k>namespace</span> lbuchs\<span class=pl-v>WebAuthn</span>\<span class=pl-v>Attestation</span>\<span class=pl-v>Format</span>;</td>
    961. 

  961.       </tr>
    962. 

  962.       <tr>
    963. 

  963.         <td id="L5" class="blob-num js-line-number" data-line-number="5"></td>
    964. 

  964.         <td id="LC5" class="blob-code blob-code-inner js-file-line"><span class=pl-k>use</span> lbuchs\<span class=pl-v>WebAuthn</span>\<span class=pl-v>Attestation</span>\<span class=pl-v>AuthenticatorData</span>;</td>
    965. 

  965.       </tr>
    966. 

  966.       <tr>
    967. 

  967.         <td id="L6" class="blob-num js-line-number" data-line-number="6"></td>
    968. 

  968.         <td id="LC6" class="blob-code blob-code-inner js-file-line"><span class=pl-k>use</span> lbuchs\<span class=pl-v>WebAuthn</span>\<span class=pl-v>WebAuthnException</span>;</td>
    969. 

  969.       </tr>
    970. 

  970.       <tr>
    971. 

  971.         <td id="L7" class="blob-num js-line-number" data-line-number="7"></td>
    972. 

  972.         <td id="LC7" class="blob-code blob-code-inner js-file-line"><span class=pl-k>use</span> lbuchs\<span class=pl-v>WebAuthn</span>\<span class=pl-v>Binary</span>\<span class=pl-v>ByteBuffer</span>;</td>
    973. 

  973.       </tr>
    974. 

  974.       <tr>
    975. 

  975.         <td id="L8" class="blob-num js-line-number" data-line-number="8"></td>
    976. 

  976.         <td id="LC8" class="blob-code blob-code-inner js-file-line">
    977. 

  977. </td>
    978. 

  978.       </tr>
    979. 

  979.       <tr>
    980. 

  980.         <td id="L9" class="blob-num js-line-number" data-line-number="9"></td>
    981. 

  981.         <td id="LC9" class="blob-code blob-code-inner js-file-line"><span class=pl-k>class</span> <span class=pl-v>U2f</span> <span class=pl-k>extends</span> <span class=pl-v>FormatBase</span> {</td>
    982. 

  982.       </tr>
    983. 

  983.       <tr>
    984. 

  984.         <td id="L10" class="blob-num js-line-number" data-line-number="10"></td>
    985. 

  985.         <td id="LC10" class="blob-code blob-code-inner js-file-line">    <span class=pl-k>private</span> <span class=pl-c1><span class=pl-c1>$</span>_alg</span> = -<span class=pl-c1>7</span>;</td>
    986. 

  986.       </tr>
    987. 

  987.       <tr>
    988. 

  988.         <td id="L11" class="blob-num js-line-number" data-line-number="11"></td>
    989. 

  989.         <td id="LC11" class="blob-code blob-code-inner js-file-line">    <span class=pl-k>private</span> <span class=pl-c1><span class=pl-c1>$</span>_signature</span>;</td>
    990. 

  990.       </tr>
    991. 

  991.       <tr>
    992. 

  992.         <td id="L12" class="blob-num js-line-number" data-line-number="12"></td>
    993. 

  993.         <td id="LC12" class="blob-code blob-code-inner js-file-line">    <span class=pl-k>private</span> <span class=pl-c1><span class=pl-c1>$</span>_x5c</span>;</td>
    994. 

  994.       </tr>
    995. 

  995.       <tr>
    996. 

  996.         <td id="L13" class="blob-num js-line-number" data-line-number="13"></td>
    997. 

  997.         <td id="LC13" class="blob-code blob-code-inner js-file-line">
    998. 

  998. </td>
    999. 

  999.       </tr>
    1000. 

  1000.       <tr>
    1001. 

  1001.         <td id="L14" class="blob-num js-line-number" data-line-number="14"></td>
    1002. 

  1002.         <td id="LC14" class="blob-code blob-code-inner js-file-line">    <span class=pl-k>public</span> <span class=pl-k>function</span> <span class=pl-en>__construct</span>(<span class=pl-s1><span class=pl-c1>$</span><span class=pl-v>AttestionObject</span></span>, <span class=pl-smi>AuthenticatorData</span> <span class=pl-s1><span class=pl-c1>$</span>authenticatorData</span>) {</td>
    1003. 

  1003.       </tr>
    1004. 

  1004.       <tr>
    1005. 

  1005.         <td id="L15" class="blob-num js-line-number" data-line-number="15"></td>
    1006. 

  1006.         <td id="LC15" class="blob-code blob-code-inner js-file-line">        <span class=pl-smi>parent</span>::<span class=pl-en>__construct</span>(<span class=pl-s1><span class=pl-c1>$</span><span class=pl-v>AttestionObject</span></span>, <span class=pl-s1><span class=pl-c1>$</span>authenticatorData</span>);</td>
    1007. 

  1007.       </tr>
    1008. 

  1008.       <tr>
    1009. 

  1009.         <td id="L16" class="blob-num js-line-number" data-line-number="16"></td>
    1010. 

  1010.         <td id="LC16" class="blob-code blob-code-inner js-file-line">
    1011. 

  1011. </td>
    1012. 

  1012.       </tr>
    1013. 

  1013.       <tr>
    1014. 

  1014.         <td id="L17" class="blob-num js-line-number" data-line-number="17"></td>
    1015. 

  1015.         <td id="LC17" class="blob-code blob-code-inner js-file-line">        <span class=pl-c>// check u2f data</span></td>
    1016. 

  1016.       </tr>
    1017. 

  1017.       <tr>
    1018. 

  1018.         <td id="L18" class="blob-num js-line-number" data-line-number="18"></td>
    1019. 

  1019.         <td id="LC18" class="blob-code blob-code-inner js-file-line">        <span class=pl-s1><span class=pl-c1>$</span>attStmt</span> = <span class=pl-s1><span class=pl-c1>$</span><span class=pl-smi>this</span></span>-&gt;<span class=pl-c1>_attestationObject</span>[<span class=pl-s>&#39;attStmt&#39;</span>];</td>
    1020. 

  1020.       </tr>
    1021. 

  1021.       <tr>
    1022. 

  1022.         <td id="L19" class="blob-num js-line-number" data-line-number="19"></td>
    1023. 

  1023.         <td id="LC19" class="blob-code blob-code-inner js-file-line">
    1024. 

  1024. </td>
    1025. 

  1025.       </tr>
    1026. 

  1026.       <tr>
    1027. 

  1027.         <td id="L20" class="blob-num js-line-number" data-line-number="20"></td>
    1028. 

  1028.         <td id="LC20" class="blob-code blob-code-inner js-file-line">        <span class=pl-k>if</span> (<span class=pl-en>\array_key_exists</span>(<span class=pl-s>&#39;alg&#39;</span>, <span class=pl-s1><span class=pl-c1>$</span>attStmt</span>) &amp;&amp; <span class=pl-s1><span class=pl-c1>$</span>attStmt</span>[<span class=pl-s>&#39;alg&#39;</span>] !== <span class=pl-s1><span class=pl-c1>$</span><span class=pl-smi>this</span></span>-&gt;<span class=pl-c1>_alg</span>) {</td>
    1029. 

  1029.       </tr>
    1030. 

  1030.       <tr>
    1031. 

  1031.         <td id="L21" class="blob-num js-line-number" data-line-number="21"></td>
    1032. 

  1032.         <td id="LC21" class="blob-code blob-code-inner js-file-line">            <span class=pl-k>throw</span> <span class=pl-k>new</span> <span class=pl-v>WebAuthnException</span>(<span class=pl-s>&#39;u2f only accepts algorithm -7 (&quot;ES256&quot;), but got &#39;</span> . <span class=pl-s1><span class=pl-c1>$</span>attStmt</span>[<span class=pl-s>&#39;alg&#39;</span>], <span class=pl-v>WebAuthnException</span>::<span class=pl-c1>INVALID_DATA</span>);</td>
    1033. 

  1033.       </tr>
    1034. 

  1034.       <tr>
    1035. 

  1035.         <td id="L22" class="blob-num js-line-number" data-line-number="22"></td>
    1036. 

  1036.         <td id="LC22" class="blob-code blob-code-inner js-file-line">        }</td>
    1037. 

  1037.       </tr>
    1038. 

  1038.       <tr>
    1039. 

  1039.         <td id="L23" class="blob-num js-line-number" data-line-number="23"></td>
    1040. 

  1040.         <td id="LC23" class="blob-code blob-code-inner js-file-line">
    1041. 

  1041. </td>
    1042. 

  1042.       </tr>
    1043. 

  1043.       <tr>
    1044. 

  1044.         <td id="L24" class="blob-num js-line-number" data-line-number="24"></td>
    1045. 

  1045.         <td id="LC24" class="blob-code blob-code-inner js-file-line">        <span class=pl-k>if</span> (!<span class=pl-en>\array_key_exists</span>(<span class=pl-s>&#39;sig&#39;</span>, <span class=pl-s1><span class=pl-c1>$</span>attStmt</span>) || !<span class=pl-en>\is_object</span>(<span class=pl-s1><span class=pl-c1>$</span>attStmt</span>[<span class=pl-s>&#39;sig&#39;</span>]) || !(<span class=pl-s1><span class=pl-c1>$</span>attStmt</span>[<span class=pl-s>&#39;sig&#39;</span>] instanceof <span class=pl-v>ByteBuffer</span>)) {</td>
    1046. 

  1046.       </tr>
    1047. 

  1047.       <tr>
    1048. 

  1048.         <td id="L25" class="blob-num js-line-number" data-line-number="25"></td>
    1049. 

  1049.         <td id="LC25" class="blob-code blob-code-inner js-file-line">            <span class=pl-k>throw</span> <span class=pl-k>new</span> <span class=pl-v>WebAuthnException</span>(<span class=pl-s>&#39;no signature found&#39;</span>, <span class=pl-v>WebAuthnException</span>::<span class=pl-c1>INVALID_DATA</span>);</td>
    1050. 

  1050.       </tr>
    1051. 

  1051.       <tr>
    1052. 

  1052.         <td id="L26" class="blob-num js-line-number" data-line-number="26"></td>
    1053. 

  1053.         <td id="LC26" class="blob-code blob-code-inner js-file-line">        }</td>
    1054. 

  1054.       </tr>
    1055. 

  1055.       <tr>
    1056. 

  1056.         <td id="L27" class="blob-num js-line-number" data-line-number="27"></td>
    1057. 

  1057.         <td id="LC27" class="blob-code blob-code-inner js-file-line">
    1058. 

  1058. </td>
    1059. 

  1059.       </tr>
    1060. 

  1060.       <tr>
    1061. 

  1061.         <td id="L28" class="blob-num js-line-number" data-line-number="28"></td>
    1062. 

  1062.         <td id="LC28" class="blob-code blob-code-inner js-file-line">        <span class=pl-k>if</span> (!<span class=pl-en>\array_key_exists</span>(<span class=pl-s>&#39;x5c&#39;</span>, <span class=pl-s1><span class=pl-c1>$</span>attStmt</span>) || !<span class=pl-en>\is_array</span>(<span class=pl-s1><span class=pl-c1>$</span>attStmt</span>[<span class=pl-s>&#39;x5c&#39;</span>]) || <span class=pl-en>\count</span>(<span class=pl-s1><span class=pl-c1>$</span>attStmt</span>[<span class=pl-s>&#39;x5c&#39;</span>]) !== <span class=pl-c1>1</span>) {</td>
    1063. 

  1063.       </tr>
    1064. 

  1064.       <tr>
    1065. 

  1065.         <td id="L29" class="blob-num js-line-number" data-line-number="29"></td>
    1066. 

  1066.         <td id="LC29" class="blob-code blob-code-inner js-file-line">            <span class=pl-k>throw</span> <span class=pl-k>new</span> <span class=pl-v>WebAuthnException</span>(<span class=pl-s>&#39;invalid x5c certificate&#39;</span>, <span class=pl-v>WebAuthnException</span>::<span class=pl-c1>INVALID_DATA</span>);</td>
    1067. 

  1067.       </tr>
    1068. 

  1068.       <tr>
    1069. 

  1069.         <td id="L30" class="blob-num js-line-number" data-line-number="30"></td>
    1070. 

  1070.         <td id="LC30" class="blob-code blob-code-inner js-file-line">        }</td>
    1071. 

  1071.       </tr>
    1072. 

  1072.       <tr>
    1073. 

  1073.         <td id="L31" class="blob-num js-line-number" data-line-number="31"></td>
    1074. 

  1074.         <td id="LC31" class="blob-code blob-code-inner js-file-line">
    1075. 

  1075. </td>
    1076. 

  1076.       </tr>
    1077. 

  1077.       <tr>
    1078. 

  1078.         <td id="L32" class="blob-num js-line-number" data-line-number="32"></td>
    1079. 

  1079.         <td id="LC32" class="blob-code blob-code-inner js-file-line">        <span class=pl-k>if</span> (!<span class=pl-en>\is_object</span>(<span class=pl-s1><span class=pl-c1>$</span>attStmt</span>[<span class=pl-s>&#39;x5c&#39;</span>][<span class=pl-c1>0</span>]) || !(<span class=pl-s1><span class=pl-c1>$</span>attStmt</span>[<span class=pl-s>&#39;x5c&#39;</span>][<span class=pl-c1>0</span>] instanceof <span class=pl-v>ByteBuffer</span>)) {</td>
    1080. 

  1080.       </tr>
    1081. 

  1081.       <tr>
    1082. 

  1082.         <td id="L33" class="blob-num js-line-number" data-line-number="33"></td>
    1083. 

  1083.         <td id="LC33" class="blob-code blob-code-inner js-file-line">            <span class=pl-k>throw</span> <span class=pl-k>new</span> <span class=pl-v>WebAuthnException</span>(<span class=pl-s>&#39;invalid x5c certificate&#39;</span>, <span class=pl-v>WebAuthnException</span>::<span class=pl-c1>INVALID_DATA</span>);</td>
    1084. 

  1084.       </tr>
    1085. 

  1085.       <tr>
    1086. 

  1086.         <td id="L34" class="blob-num js-line-number" data-line-number="34"></td>
    1087. 

  1087.         <td id="LC34" class="blob-code blob-code-inner js-file-line">        }</td>
    1088. 

  1088.       </tr>
    1089. 

  1089.       <tr>
    1090. 

  1090.         <td id="L35" class="blob-num js-line-number" data-line-number="35"></td>
    1091. 

  1091.         <td id="LC35" class="blob-code blob-code-inner js-file-line">
    1092. 

  1092. </td>
    1093. 

  1093.       </tr>
    1094. 

  1094.       <tr>
    1095. 

  1095.         <td id="L36" class="blob-num js-line-number" data-line-number="36"></td>
    1096. 

  1096.         <td id="LC36" class="blob-code blob-code-inner js-file-line">        <span class=pl-s1><span class=pl-c1>$</span><span class=pl-smi>this</span></span>-&gt;<span class=pl-c1>_signature</span> = <span class=pl-s1><span class=pl-c1>$</span>attStmt</span>[<span class=pl-s>&#39;sig&#39;</span>]-&gt;<span class=pl-en>getBinaryString</span>();</td>
    1097. 

  1097.       </tr>
    1098. 

  1098.       <tr>
    1099. 

  1099.         <td id="L37" class="blob-num js-line-number" data-line-number="37"></td>
    1100. 

  1100.         <td id="LC37" class="blob-code blob-code-inner js-file-line">        <span class=pl-s1><span class=pl-c1>$</span><span class=pl-smi>this</span></span>-&gt;<span class=pl-c1>_x5c</span> = <span class=pl-s1><span class=pl-c1>$</span>attStmt</span>[<span class=pl-s>&#39;x5c&#39;</span>][<span class=pl-c1>0</span>]-&gt;<span class=pl-en>getBinaryString</span>();</td>
    1101. 

  1101.       </tr>
    1102. 

  1102.       <tr>
    1103. 

  1103.         <td id="L38" class="blob-num js-line-number" data-line-number="38"></td>
    1104. 

  1104.         <td id="LC38" class="blob-code blob-code-inner js-file-line">    }</td>
    1105. 

  1105.       </tr>
    1106. 

  1106.       <tr>
    1107. 

  1107.         <td id="L39" class="blob-num js-line-number" data-line-number="39"></td>
    1108. 

  1108.         <td id="LC39" class="blob-code blob-code-inner js-file-line">
    1109. 

  1109. </td>
    1110. 

  1110.       </tr>
    1111. 

  1111.       <tr>
    1112. 

  1112.         <td id="L40" class="blob-num js-line-number" data-line-number="40"></td>
    1113. 

  1113.         <td id="LC40" class="blob-code blob-code-inner js-file-line">
    1114. 

  1114. </td>
    1115. 

  1115.       </tr>
    1116. 

  1116.       <tr>
    1117. 

  1117.         <td id="L41" class="blob-num js-line-number" data-line-number="41"></td>
    1118. 

  1118.         <td id="LC41" class="blob-code blob-code-inner js-file-line">    <span class=pl-c>/*</span></td>
    1119. 

  1119.       </tr>
    1120. 

  1120.       <tr>
    1121. 

  1121.         <td id="L42" class="blob-num js-line-number" data-line-number="42"></td>
    1122. 

  1122.         <td id="LC42" class="blob-code blob-code-inner js-file-line"><span class=pl-c>     * returns the key certificate in PEM format</span></td>
    1123. 

  1123.       </tr>
    1124. 

  1124.       <tr>
    1125. 

  1125.         <td id="L43" class="blob-num js-line-number" data-line-number="43"></td>
    1126. 

  1126.         <td id="LC43" class="blob-code blob-code-inner js-file-line"><span class=pl-c>     * @return string</span></td>
    1127. 

  1127.       </tr>
    1128. 

  1128.       <tr>
    1129. 

  1129.         <td id="L44" class="blob-num js-line-number" data-line-number="44"></td>
    1130. 

  1130.         <td id="LC44" class="blob-code blob-code-inner js-file-line"><span class=pl-c>     */</span></td>
    1131. 

  1131.       </tr>
    1132. 

  1132.       <tr>
    1133. 

  1133.         <td id="L45" class="blob-num js-line-number" data-line-number="45"></td>
    1134. 

  1134.         <td id="LC45" class="blob-code blob-code-inner js-file-line">    <span class=pl-k>public</span> <span class=pl-k>function</span> <span class=pl-en>getCertificatePem</span>() {</td>
    1135. 

  1135.       </tr>
    1136. 

  1136.       <tr>
    1137. 

  1137.         <td id="L46" class="blob-num js-line-number" data-line-number="46"></td>
    1138. 

  1138.         <td id="LC46" class="blob-code blob-code-inner js-file-line">        <span class=pl-s1><span class=pl-c1>$</span>pem</span> = <span class=pl-s>&#39;-----BEGIN CERTIFICATE-----&#39;</span> . <span class=pl-s>&quot;\n&quot;</span>;</td>
    1139. 

  1139.       </tr>
    1140. 

  1140.       <tr>
    1141. 

  1141.         <td id="L47" class="blob-num js-line-number" data-line-number="47"></td>
    1142. 

  1142.         <td id="LC47" class="blob-code blob-code-inner js-file-line">        <span class=pl-s1><span class=pl-c1>$</span>pem</span> .= <span class=pl-en>\chunk_split</span>(<span class=pl-en>\base64_encode</span>(<span class=pl-s1><span class=pl-c1>$</span><span class=pl-smi>this</span></span>-&gt;<span class=pl-c1>_x5c</span>), <span class=pl-c1>64</span>, <span class=pl-s>&quot;\n&quot;</span>);</td>
    1143. 

  1143.       </tr>
    1144. 

  1144.       <tr>
    1145. 

  1145.         <td id="L48" class="blob-num js-line-number" data-line-number="48"></td>
    1146. 

  1146.         <td id="LC48" class="blob-code blob-code-inner js-file-line">        <span class=pl-s1><span class=pl-c1>$</span>pem</span> .= <span class=pl-s>&#39;-----END CERTIFICATE-----&#39;</span> . <span class=pl-s>&quot;\n&quot;</span>;</td>
    1147. 

  1147.       </tr>
    1148. 

  1148.       <tr>
    1149. 

  1149.         <td id="L49" class="blob-num js-line-number" data-line-number="49"></td>
    1150. 

  1150.         <td id="LC49" class="blob-code blob-code-inner js-file-line">        <span class=pl-k>return</span> <span class=pl-s1><span class=pl-c1>$</span>pem</span>;</td>
    1151. 

  1151.       </tr>
    1152. 

  1152.       <tr>
    1153. 

  1153.         <td id="L50" class="blob-num js-line-number" data-line-number="50"></td>
    1154. 

  1154.         <td id="LC50" class="blob-code blob-code-inner js-file-line">    }</td>
    1155. 

  1155.       </tr>
    1156. 

  1156.       <tr>
    1157. 

  1157.         <td id="L51" class="blob-num js-line-number" data-line-number="51"></td>
    1158. 

  1158.         <td id="LC51" class="blob-code blob-code-inner js-file-line">
    1159. 

  1159. </td>
    1160. 

  1160.       </tr>
    1161. 

  1161.       <tr>
    1162. 

  1162.         <td id="L52" class="blob-num js-line-number" data-line-number="52"></td>
    1163. 

  1163.         <td id="LC52" class="blob-code blob-code-inner js-file-line">    <span class=pl-c>/**</span></td>
    1164. 

  1164.       </tr>
    1165. 

  1165.       <tr>
    1166. 

  1166.         <td id="L53" class="blob-num js-line-number" data-line-number="53"></td>
    1167. 

  1167.         <td id="LC53" class="blob-code blob-code-inner js-file-line"><span class=pl-c>     * @param string $clientDataHash</span></td>
    1168. 

  1168.       </tr>
    1169. 

  1169.       <tr>
    1170. 

  1170.         <td id="L54" class="blob-num js-line-number" data-line-number="54"></td>
    1171. 

  1171.         <td id="LC54" class="blob-code blob-code-inner js-file-line"><span class=pl-c>     */</span></td>
    1172. 

  1172.       </tr>
    1173. 

  1173.       <tr>
    1174. 

  1174.         <td id="L55" class="blob-num js-line-number" data-line-number="55"></td>
    1175. 

  1175.         <td id="LC55" class="blob-code blob-code-inner js-file-line">    <span class=pl-k>public</span> <span class=pl-k>function</span> <span class=pl-en>validateAttestation</span>(<span class=pl-s1><span class=pl-c1>$</span>clientDataHash</span>) {</td>
    1176. 

  1176.       </tr>
    1177. 

  1177.       <tr>
    1178. 

  1178.         <td id="L56" class="blob-num js-line-number" data-line-number="56"></td>
    1179. 

  1179.         <td id="LC56" class="blob-code blob-code-inner js-file-line">        <span class=pl-s1><span class=pl-c1>$</span>publicKey</span> = <span class=pl-en>\openssl_pkey_get_public</span>(<span class=pl-s1><span class=pl-c1>$</span><span class=pl-smi>this</span></span>-&gt;<span class=pl-en>getCertificatePem</span>());</td>
    1180. 

  1180.       </tr>
    1181. 

  1181.       <tr>
    1182. 

  1182.         <td id="L57" class="blob-num js-line-number" data-line-number="57"></td>
    1183. 

  1183.         <td id="LC57" class="blob-code blob-code-inner js-file-line">
    1184. 

  1184. </td>
    1185. 

  1185.       </tr>
    1186. 

  1186.       <tr>
    1187. 

  1187.         <td id="L58" class="blob-num js-line-number" data-line-number="58"></td>
    1188. 

  1188.         <td id="LC58" class="blob-code blob-code-inner js-file-line">        <span class=pl-k>if</span> (<span class=pl-s1><span class=pl-c1>$</span>publicKey</span> === <span class=pl-c1>false</span>) {</td>
    1189. 

  1189.       </tr>
    1190. 

  1190.       <tr>
    1191. 

  1191.         <td id="L59" class="blob-num js-line-number" data-line-number="59"></td>
    1192. 

  1192.         <td id="LC59" class="blob-code blob-code-inner js-file-line">            <span class=pl-k>throw</span> <span class=pl-k>new</span> <span class=pl-v>WebAuthnException</span>(<span class=pl-s>&#39;invalid public key: &#39;</span> . <span class=pl-en>\openssl_error_string</span>(), <span class=pl-v>WebAuthnException</span>::<span class=pl-c1>INVALID_PUBLIC_KEY</span>);</td>
    1193. 

  1193.       </tr>
    1194. 

  1194.       <tr>
    1195. 

  1195.         <td id="L60" class="blob-num js-line-number" data-line-number="60"></td>
    1196. 

  1196.         <td id="LC60" class="blob-code blob-code-inner js-file-line">        }</td>
    1197. 

  1197.       </tr>
    1198. 

  1198.       <tr>
    1199. 

  1199.         <td id="L61" class="blob-num js-line-number" data-line-number="61"></td>
    1200. 

  1200.         <td id="LC61" class="blob-code blob-code-inner js-file-line">
    1201. 

  1201. </td>
    1202. 

  1202.       </tr>
    1203. 

  1203.       <tr>
    1204. 

  1204.         <td id="L62" class="blob-num js-line-number" data-line-number="62"></td>
    1205. 

  1205.         <td id="LC62" class="blob-code blob-code-inner js-file-line">        <span class=pl-c>// Let verificationData be the concatenation of (0x00 || rpIdHash || clientDataHash || credentialId || publicKeyU2F)</span></td>
    1206. 

  1206.       </tr>
    1207. 

  1207.       <tr>
    1208. 

  1208.         <td id="L63" class="blob-num js-line-number" data-line-number="63"></td>
    1209. 

  1209.         <td id="LC63" class="blob-code blob-code-inner js-file-line">        <span class=pl-s1><span class=pl-c1>$</span>dataToVerify</span> = <span class=pl-s>&quot;\x00&quot;</span>;</td>
    1210. 

  1210.       </tr>
    1211. 

  1211.       <tr>
    1212. 

  1212.         <td id="L64" class="blob-num js-line-number" data-line-number="64"></td>
    1213. 

  1213.         <td id="LC64" class="blob-code blob-code-inner js-file-line">        <span class=pl-s1><span class=pl-c1>$</span>dataToVerify</span> .= <span class=pl-s1><span class=pl-c1>$</span><span class=pl-smi>this</span></span>-&gt;<span class=pl-c1>_authenticatorData</span>-&gt;<span class=pl-en>getRpIdHash</span>();</td>
    1214. 

  1214.       </tr>
    1215. 

  1215.       <tr>
    1216. 

  1216.         <td id="L65" class="blob-num js-line-number" data-line-number="65"></td>
    1217. 

  1217.         <td id="LC65" class="blob-code blob-code-inner js-file-line">        <span class=pl-s1><span class=pl-c1>$</span>dataToVerify</span> .= <span class=pl-s1><span class=pl-c1>$</span>clientDataHash</span>;</td>
    1218. 

  1218.       </tr>
    1219. 

  1219.       <tr>
    1220. 

  1220.         <td id="L66" class="blob-num js-line-number" data-line-number="66"></td>
    1221. 

  1221.         <td id="LC66" class="blob-code blob-code-inner js-file-line">        <span class=pl-s1><span class=pl-c1>$</span>dataToVerify</span> .= <span class=pl-s1><span class=pl-c1>$</span><span class=pl-smi>this</span></span>-&gt;<span class=pl-c1>_authenticatorData</span>-&gt;<span class=pl-en>getCredentialId</span>();</td>
    1222. 

  1222.       </tr>
    1223. 

  1223.       <tr>
    1224. 

  1224.         <td id="L67" class="blob-num js-line-number" data-line-number="67"></td>
    1225. 

  1225.         <td id="LC67" class="blob-code blob-code-inner js-file-line">        <span class=pl-s1><span class=pl-c1>$</span>dataToVerify</span> .= <span class=pl-s1><span class=pl-c1>$</span><span class=pl-smi>this</span></span>-&gt;<span class=pl-c1>_authenticatorData</span>-&gt;<span class=pl-en>getPublicKeyU2F</span>();</td>
    1226. 

  1226.       </tr>
    1227. 

  1227.       <tr>
    1228. 

  1228.         <td id="L68" class="blob-num js-line-number" data-line-number="68"></td>
    1229. 

  1229.         <td id="LC68" class="blob-code blob-code-inner js-file-line">
    1230. 

  1230. </td>
    1231. 

  1231.       </tr>
    1232. 

  1232.       <tr>
    1233. 

  1233.         <td id="L69" class="blob-num js-line-number" data-line-number="69"></td>
    1234. 

  1234.         <td id="LC69" class="blob-code blob-code-inner js-file-line">        <span class=pl-s1><span class=pl-c1>$</span>coseAlgorithm</span> = <span class=pl-s1><span class=pl-c1>$</span><span class=pl-smi>this</span></span>-&gt;<span class=pl-en>_getCoseAlgorithm</span>(<span class=pl-s1><span class=pl-c1>$</span><span class=pl-smi>this</span></span>-&gt;<span class=pl-c1>_alg</span>);</td>
    1235. 

  1235.       </tr>
    1236. 

  1236.       <tr>
    1237. 

  1237.         <td id="L70" class="blob-num js-line-number" data-line-number="70"></td>
    1238. 

  1238.         <td id="LC70" class="blob-code blob-code-inner js-file-line">
    1239. 

  1239. </td>
    1240. 

  1240.       </tr>
    1241. 

  1241.       <tr>
    1242. 

  1242.         <td id="L71" class="blob-num js-line-number" data-line-number="71"></td>
    1243. 

  1243.         <td id="LC71" class="blob-code blob-code-inner js-file-line">        <span class=pl-c>// check certificate</span></td>
    1244. 

  1244.       </tr>
    1245. 

  1245.       <tr>
    1246. 

  1246.         <td id="L72" class="blob-num js-line-number" data-line-number="72"></td>
    1247. 

  1247.         <td id="LC72" class="blob-code blob-code-inner js-file-line">        <span class=pl-k>return</span> <span class=pl-en>\openssl_verify</span>(<span class=pl-s1><span class=pl-c1>$</span>dataToVerify</span>, <span class=pl-s1><span class=pl-c1>$</span><span class=pl-smi>this</span></span>-&gt;<span class=pl-c1>_signature</span>, <span class=pl-s1><span class=pl-c1>$</span>publicKey</span>, <span class=pl-s1><span class=pl-c1>$</span>coseAlgorithm</span>-&gt;<span class=pl-c1>openssl</span>) === <span class=pl-c1>1</span>;</td>
    1248. 

  1248.       </tr>
    1249. 

  1249.       <tr>
    1250. 

  1250.         <td id="L73" class="blob-num js-line-number" data-line-number="73"></td>
    1251. 

  1251.         <td id="LC73" class="blob-code blob-code-inner js-file-line">    }</td>
    1252. 

  1252.       </tr>
    1253. 

  1253.       <tr>
    1254. 

  1254.         <td id="L74" class="blob-num js-line-number" data-line-number="74"></td>
    1255. 

  1255.         <td id="LC74" class="blob-code blob-code-inner js-file-line">
    1256. 

  1256. </td>
    1257. 

  1257.       </tr>
    1258. 

  1258.       <tr>
    1259. 

  1259.         <td id="L75" class="blob-num js-line-number" data-line-number="75"></td>
    1260. 

  1260.         <td id="LC75" class="blob-code blob-code-inner js-file-line">    <span class=pl-c>/**</span></td>
    1261. 

  1261.       </tr>
    1262. 

  1262.       <tr>
    1263. 

  1263.         <td id="L76" class="blob-num js-line-number" data-line-number="76"></td>
    1264. 

  1264.         <td id="LC76" class="blob-code blob-code-inner js-file-line"><span class=pl-c>     * validates the certificate against root certificates</span></td>
    1265. 

  1265.       </tr>
    1266. 

  1266.       <tr>
    1267. 

  1267.         <td id="L77" class="blob-num js-line-number" data-line-number="77"></td>
    1268. 

  1268.         <td id="LC77" class="blob-code blob-code-inner js-file-line"><span class=pl-c>     * @param array $rootCas</span></td>
    1269. 

  1269.       </tr>
    1270. 

  1270.       <tr>
    1271. 

  1271.         <td id="L78" class="blob-num js-line-number" data-line-number="78"></td>
    1272. 

  1272.         <td id="LC78" class="blob-code blob-code-inner js-file-line"><span class=pl-c>     * @return boolean</span></td>
    1273. 

  1273.       </tr>
    1274. 

  1274.       <tr>
    1275. 

  1275.         <td id="L79" class="blob-num js-line-number" data-line-number="79"></td>
    1276. 

  1276.         <td id="LC79" class="blob-code blob-code-inner js-file-line"><span class=pl-c>     * @throws WebAuthnException</span></td>
    1277. 

  1277.       </tr>
    1278. 

  1278.       <tr>
    1279. 

  1279.         <td id="L80" class="blob-num js-line-number" data-line-number="80"></td>
    1280. 

  1280.         <td id="LC80" class="blob-code blob-code-inner js-file-line"><span class=pl-c>     */</span></td>
    1281. 

  1281.       </tr>
    1282. 

  1282.       <tr>
    1283. 

  1283.         <td id="L81" class="blob-num js-line-number" data-line-number="81"></td>
    1284. 

  1284.         <td id="LC81" class="blob-code blob-code-inner js-file-line">    <span class=pl-k>public</span> <span class=pl-k>function</span> <span class=pl-en>validateRootCertificate</span>(<span class=pl-s1><span class=pl-c1>$</span>rootCas</span>) {</td>
    1285. 

  1285.       </tr>
    1286. 

  1286.       <tr>
    1287. 

  1287.         <td id="L82" class="blob-num js-line-number" data-line-number="82"></td>
    1288. 

  1288.         <td id="LC82" class="blob-code blob-code-inner js-file-line">        <span class=pl-s1><span class=pl-c1>$</span>chainC</span> = <span class=pl-s1><span class=pl-c1>$</span><span class=pl-smi>this</span></span>-&gt;<span class=pl-en>_createX5cChainFile</span>();</td>
    1289. 

  1289.       </tr>
    1290. 

  1290.       <tr>
    1291. 

  1291.         <td id="L83" class="blob-num js-line-number" data-line-number="83"></td>
    1292. 

  1292.         <td id="LC83" class="blob-code blob-code-inner js-file-line">        <span class=pl-k>if</span> (<span class=pl-s1><span class=pl-c1>$</span>chainC</span>) {</td>
    1293. 

  1293.       </tr>
    1294. 

  1294.       <tr>
    1295. 

  1295.         <td id="L84" class="blob-num js-line-number" data-line-number="84"></td>
    1296. 

  1296.         <td id="LC84" class="blob-code blob-code-inner js-file-line">            <span class=pl-s1><span class=pl-c1>$</span>rootCas</span>[] = <span class=pl-s1><span class=pl-c1>$</span>chainC</span>;</td>
    1297. 

  1297.       </tr>
    1298. 

  1298.       <tr>
    1299. 

  1299.         <td id="L85" class="blob-num js-line-number" data-line-number="85"></td>
    1300. 

  1300.         <td id="LC85" class="blob-code blob-code-inner js-file-line">        }</td>
    1301. 

  1301.       </tr>
    1302. 

  1302.       <tr>
    1303. 

  1303.         <td id="L86" class="blob-num js-line-number" data-line-number="86"></td>
    1304. 

  1304.         <td id="LC86" class="blob-code blob-code-inner js-file-line">
    1305. 

  1305. </td>
    1306. 

  1306.       </tr>
    1307. 

  1307.       <tr>
    1308. 

  1308.         <td id="L87" class="blob-num js-line-number" data-line-number="87"></td>
    1309. 

  1309.         <td id="LC87" class="blob-code blob-code-inner js-file-line">        <span class=pl-s1><span class=pl-c1>$</span>v</span> = <span class=pl-en>\openssl_x509_checkpurpose</span>(<span class=pl-s1><span class=pl-c1>$</span><span class=pl-smi>this</span></span>-&gt;<span class=pl-en>getCertificatePem</span>(), -<span class=pl-c1>1</span>, <span class=pl-s1><span class=pl-c1>$</span>rootCas</span>);</td>
    1310. 

  1310.       </tr>
    1311. 

  1311.       <tr>
    1312. 

  1312.         <td id="L88" class="blob-num js-line-number" data-line-number="88"></td>
    1313. 

  1313.         <td id="LC88" class="blob-code blob-code-inner js-file-line">        <span class=pl-k>if</span> (<span class=pl-s1><span class=pl-c1>$</span>v</span> === -<span class=pl-c1>1</span>) {</td>
    1314. 

  1314.       </tr>
    1315. 

  1315.       <tr>
    1316. 

  1316.         <td id="L89" class="blob-num js-line-number" data-line-number="89"></td>
    1317. 

  1317.         <td id="LC89" class="blob-code blob-code-inner js-file-line">            <span class=pl-k>throw</span> <span class=pl-k>new</span> <span class=pl-v>WebAuthnException</span>(<span class=pl-s>&#39;error on validating root certificate: &#39;</span> . <span class=pl-en>\openssl_error_string</span>(), <span class=pl-v>WebAuthnException</span>::<span class=pl-c1>CERTIFICATE_NOT_TRUSTED</span>);</td>
    1318. 

  1318.       </tr>
    1319. 

  1319.       <tr>
    1320. 

  1320.         <td id="L90" class="blob-num js-line-number" data-line-number="90"></td>
    1321. 

  1321.         <td id="LC90" class="blob-code blob-code-inner js-file-line">        }</td>
    1322. 

  1322.       </tr>
    1323. 

  1323.       <tr>
    1324. 

  1324.         <td id="L91" class="blob-num js-line-number" data-line-number="91"></td>
    1325. 

  1325.         <td id="LC91" class="blob-code blob-code-inner js-file-line">        <span class=pl-k>return</span> <span class=pl-s1><span class=pl-c1>$</span>v</span>;</td>
    1326. 

  1326.       </tr>
    1327. 

  1327.       <tr>
    1328. 

  1328.         <td id="L92" class="blob-num js-line-number" data-line-number="92"></td>
    1329. 

  1329.         <td id="LC92" class="blob-code blob-code-inner js-file-line">    }</td>
    1330. 

  1330.       </tr>
    1331. 

  1331.       <tr>
    1332. 

  1332.         <td id="L93" class="blob-num js-line-number" data-line-number="93"></td>
    1333. 

  1333.         <td id="LC93" class="blob-code blob-code-inner js-file-line">}</td>
    1334. 

  1334.       </tr>
    1335. 

  1335. </table>
    1336. 

  1336. 

  1337.   <details class="details-reset details-overlay BlobToolbar position-absolute js-file-line-actions dropdown d-none" aria-hidden="true">
    1338. 

  1338.     <summary class="btn-octicon ml-0 px-2 p-0 bg-white border border-gray-dark rounded-1" aria-label="Inline file action toolbar">
    1339. 

  1339.       <svg class="octicon octicon-kebab-horizontal" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="M8 9a1.5 1.5 0 100-3 1.5 1.5 0 000 3zM1.5 9a1.5 1.5 0 100-3 1.5 1.5 0 000 3zm13 0a1.5 1.5 0 100-3 1.5 1.5 0 000 3z"></path></svg>
    1340. 

  1340.     </summary>
    1341. 

  1341.     <details-menu>
    1342. 

  1342.       <ul class="BlobToolbar-dropdown dropdown-menu dropdown-menu-se mt-2" style="width:185px">
    1343. 

  1343.         <li>
    1344. 

  1344.           <clipboard-copy role="menuitem" class="dropdown-item" id="js-copy-lines" style="cursor:pointer;">
    1345. 

  1345.             Copy lines
    1346. 

  1346.           </clipboard-copy>
    1347. 

  1347.         </li>
    1348. 

  1348.         <li>
    1349. 

  1349.           <clipboard-copy role="menuitem" class="dropdown-item" id="js-copy-permalink" style="cursor:pointer;">
    1350. 

  1350.             Copy permalink
    1351. 

  1351.           </clipboard-copy>
    1352. 

  1352.         </li>
    1353. 

  1353.         <li><a class="dropdown-item js-update-url-with-hash" id="js-view-git-blame" role="menuitem" href="/lbuchs/WebAuthn/blame/e62a6615894daaf061f91bc274064c5773074f81/src/Attestation/Format/U2f.php">View git blame</a></li>
    1354. 

  1354.           <li><a class="dropdown-item" id="js-new-issue" role="menuitem" href="/lbuchs/WebAuthn/issues/new">Reference in new issue</a></li>
    1355. 

  1355.       </ul>
    1356. 

  1356.     </details-menu>
    1357. 

  1357.   </details>
    1358. 

  1358. 

  1359.   </div>
    1360. 

  1360. 

  1361.     </div>
    1362. 

  1362. 

  1363.   
    1364. 

  1364. 

  1365. 

  1366.   <details class="details-reset details-overlay details-overlay-dark" id="jumpto-line-details-dialog">
    1367. 

  1367.     <summary data-hotkey="l" aria-label="Jump to line"></summary>
    1368. 

  1368.     <details-dialog class="Box Box--overlay d-flex flex-column anim-fade-in fast linejump" aria-label="Jump to line">
    1369. 

  1369.       <!-- '"` --><!-- </textarea></xmp> --></option></form><form class="js-jump-to-line-form Box-body d-flex" action="" accept-charset="UTF-8" method="get">
    1370. 

  1370.         <input class="form-control flex-auto mr-3 linejump-input js-jump-to-line-field" type="text" placeholder="Jump to line&hellip;" aria-label="Jump to line" autofocus>
    1371. 

  1371.         <button type="submit" class="btn" data-close-dialog>Go</button>
    1372. 

  1372. </form>    </details-dialog>
    1373. 

  1373.   </details>
    1374. 

  1374. 

  1375.     <div class="Popover anim-scale-in js-tagsearch-popover"
    1376. 

  1376.      hidden
    1377. 

  1377.      data-tagsearch-url="/lbuchs/WebAuthn/find-definition"
    1378. 

  1378.      data-tagsearch-ref="master"
    1379. 

  1379.      data-tagsearch-path="src/Attestation/Format/U2f.php"
    1380. 

  1380.      data-tagsearch-lang="PHP"
    1381. 

  1381.      data-hydro-click="{&quot;event_type&quot;:&quot;code_navigation.click_on_symbol&quot;,&quot;payload&quot;:{&quot;action&quot;:&quot;click_on_symbol&quot;,&quot;repository_id&quot;:149437753,&quot;ref&quot;:&quot;master&quot;,&quot;language&quot;:&quot;PHP&quot;,&quot;originating_url&quot;:&quot;https://github.com/lbuchs/WebAuthn/blob/master/src/Attestation/Format/U2f.php&quot;,&quot;user_id&quot;:null}}"
    1382. 

  1382.      data-hydro-click-hmac="8624216e48f425d935124bbdbf398afde9f9355fa3c38555f17245b4353a60e8">
    1383. 

  1383.   <div class="Popover-message Popover-message--large Popover-message--top-left TagsearchPopover mt-1 mb-4 mx-auto Box box-shadow-large">
    1384. 

  1384.     <div class="TagsearchPopover-content js-tagsearch-popover-content overflow-auto" style="will-change:transform;">
    1385. 

  1385.     </div>
    1386. 

  1386.   </div>
    1387. 

  1387. </div>
    1388. 

  1388. 

  1389. 

  1390. 

  1391. 

  1392.   </div>
    1393. 

  1393. </div>
    1394. 

  1394. 

  1395.     </main>
    1396. 

  1396.   </div>
    1397. 

  1397. 

  1398.   </div>
    1399. 

  1399. 

  1400.           
    1401. 

  1401. <div class="footer container-xl width-full p-responsive" role="contentinfo">
    1402. 

  1402.   <div class="position-relative d-flex flex-row-reverse flex-lg-row flex-wrap flex-lg-nowrap flex-justify-center flex-lg-justify-between pt-6 pb-2 mt-6 f6 text-gray border-top border-gray-light ">
    1403. 

  1403.     <ul class="list-style-none d-flex flex-wrap col-12 col-lg-5 flex-justify-center flex-lg-justify-between mb-2 mb-lg-0">
    1404. 

  1404.       <li class="mr-3 mr-lg-0">&copy; 2021 GitHub, Inc.</li>
    1405. 

  1405.         <li class="mr-3 mr-lg-0"><a data-ga-click="Footer, go to terms, text:terms" href="https://github.com/site/terms">Terms</a></li>
    1406. 

  1406.         <li class="mr-3 mr-lg-0"><a data-ga-click="Footer, go to privacy, text:privacy" href="https://github.com/site/privacy">Privacy</a></li>
    1407. 

  1407.         <li class="mr-3 mr-lg-0"><a data-ga-click="Footer, go to security, text:security" href="https://github.com/security">Security</a></li>
    1408. 

  1408.         <li class="mr-3 mr-lg-0"><a href="https://githubstatus.com/" data-ga-click="Footer, go to status, text:status">Status</a></li>
    1409. 

  1409.         <li><a data-ga-click="Footer, go to help, text:help" href="https://docs.github.com">Help</a></li>
    1410. 

  1410.     </ul>
    1411. 

  1411. 

  1412.     <a aria-label="Homepage" title="GitHub" class="footer-octicon d-none d-lg-block mx-lg-4" href="https://github.com">
    1413. 

  1413.       <svg height="24" class="octicon octicon-mark-github" viewBox="0 0 16 16" version="1.1" width="24" aria-hidden="true"><path fill-rule="evenodd" d="M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.013 8.013 0 0016 8c0-4.42-3.58-8-8-8z"></path></svg>
    1414. 

  1414. </a>
    1415. 

  1415.     <ul class="list-style-none d-flex flex-wrap col-12 col-lg-5 flex-justify-center flex-lg-justify-between mb-2 mb-lg-0">
    1416. 

  1416.         <li class="mr-3 mr-lg-0"><a data-ga-click="Footer, go to contact, text:contact" href="https://github.com/contact">Contact GitHub</a></li>
    1417. 

  1417.         <li class="mr-3 mr-lg-0"><a href="https://github.com/pricing" data-ga-click="Footer, go to Pricing, text:Pricing">Pricing</a></li>
    1418. 

  1418.       <li class="mr-3 mr-lg-0"><a href="https://docs.github.com" data-ga-click="Footer, go to api, text:api">API</a></li>
    1419. 

  1419.       <li class="mr-3 mr-lg-0"><a href="https://services.github.com" data-ga-click="Footer, go to training, text:training">Training</a></li>
    1420. 

  1420.         <li class="mr-3 mr-lg-0"><a href="https://github.blog" data-ga-click="Footer, go to blog, text:blog">Blog</a></li>
    1421. 

  1421.         <li><a data-ga-click="Footer, go to about, text:about" href="https://github.com/about">About</a></li>
    1422. 

  1422.     </ul>
    1423. 

  1423.   </div>
    1424. 

  1424.   <div class="d-flex flex-justify-center pb-6">
    1425. 

  1425.     <span class="f6 text-gray-light"></span>
    1426. 

  1426.   </div>
    1427. 

  1427. 

  1428.   
    1429. 

  1429. </div>
    1430. 

  1430. 

  1431. 

  1432. 

  1433.   <div id="ajax-error-message" class="ajax-error-message flash flash-error">
    1434. 

  1434.     <svg class="octicon octicon-alert" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M8.22 1.754a.25.25 0 00-.44 0L1.698 13.132a.25.25 0 00.22.368h12.164a.25.25 0 00.22-.368L8.22 1.754zm-1.763-.707c.659-1.234 2.427-1.234 3.086 0l6.082 11.378A1.75 1.75 0 0114.082 15H1.918a1.75 1.75 0 01-1.543-2.575L6.457 1.047zM9 11a1 1 0 11-2 0 1 1 0 012 0zm-.25-5.25a.75.75 0 00-1.5 0v2.5a.75.75 0 001.5 0v-2.5z"></path></svg>
    1435. 

  1435.     <button type="button" class="flash-close js-ajax-error-dismiss" aria-label="Dismiss error">
    1436. 

  1436.       <svg class="octicon octicon-x" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M3.72 3.72a.75.75 0 011.06 0L8 6.94l3.22-3.22a.75.75 0 111.06 1.06L9.06 8l3.22 3.22a.75.75 0 11-1.06 1.06L8 9.06l-3.22 3.22a.75.75 0 01-1.06-1.06L6.94 8 3.72 4.78a.75.75 0 010-1.06z"></path></svg>
    1437. 

  1437.     </button>
    1438. 

  1438.     You can’t perform that action at this time.
    1439. 

  1439.   </div>
    1440. 

  1440. 

  1441. 

  1442.   <div class="js-stale-session-flash flash flash-warn flash-banner" hidden
    1443. 

  1443.     >
    1444. 

  1444.     <svg class="octicon octicon-alert" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M8.22 1.754a.25.25 0 00-.44 0L1.698 13.132a.25.25 0 00.22.368h12.164a.25.25 0 00.22-.368L8.22 1.754zm-1.763-.707c.659-1.234 2.427-1.234 3.086 0l6.082 11.378A1.75 1.75 0 0114.082 15H1.918a1.75 1.75 0 01-1.543-2.575L6.457 1.047zM9 11a1 1 0 11-2 0 1 1 0 012 0zm-.25-5.25a.75.75 0 00-1.5 0v2.5a.75.75 0 001.5 0v-2.5z"></path></svg>
    1445. 

  1445.     <span class="js-stale-session-flash-signed-in" hidden>You signed in with another tab or window. <a href="">Reload</a> to refresh your session.</span>
    1446. 

  1446.     <span class="js-stale-session-flash-signed-out" hidden>You signed out in another tab or window. <a href="">Reload</a> to refresh your session.</span>
    1447. 

  1447.   </div>
    1448. 

  1448.     <template id="site-details-dialog">
    1449. 

  1449.   <details class="details-reset details-overlay details-overlay-dark lh-default text-gray-dark hx_rsm" open>
    1450. 

  1450.     <summary role="button" aria-label="Close dialog"></summary>
    1451. 

  1451.     <details-dialog class="Box Box--overlay d-flex flex-column anim-fade-in fast hx_rsm-dialog hx_rsm-modal">
    1452. 

  1452.       <button class="Box-btn-octicon m-0 btn-octicon position-absolute right-0 top-0" type="button" aria-label="Close dialog" data-close-dialog>
    1453. 

  1453.         <svg class="octicon octicon-x" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M3.72 3.72a.75.75 0 011.06 0L8 6.94l3.22-3.22a.75.75 0 111.06 1.06L9.06 8l3.22 3.22a.75.75 0 11-1.06 1.06L8 9.06l-3.22 3.22a.75.75 0 01-1.06-1.06L6.94 8 3.72 4.78a.75.75 0 010-1.06z"></path></svg>
    1454. 

  1454.       </button>
    1455. 

  1455.       <div class="octocat-spinner my-6 js-details-dialog-spinner"></div>
    1456. 

  1456.     </details-dialog>
    1457. 

  1457.   </details>
    1458. 

  1458. </template>
    1459. 

  1459. 

  1460.     <div class="Popover js-hovercard-content position-absolute" style="display: none; outline: none;" tabindex="0">
    1461. 

  1461.   <div class="Popover-message Popover-message--bottom-left Popover-message--large Box box-shadow-large" style="width:360px;">
    1462. 

  1462.   </div>
    1463. 

  1463. </div>
    1464. 

  1464. 

  1465. 

  1466.   </body>
    1467. 

  1467. </html>
    1468. 

  1468.