page1
Payload….
Key
Type:4
Cipher
Suite:4
SessionId:192
MessageIV:48
AuthTag:128
Chunk Meta or
Chunk Data
Serialize Meta or
compress / obfuscate Data
ID-MAC-Generator
ChunkId:256
Unencrypted Payload
AEAD
crypt_key:512
HKDF
salt
aad
ikm
SessionKey:256
okm
iv
id_key:256
key
“borg-session-key-CIPHERNAME”
context
RNG
CTR
Borg 2.0 crypto – 2022-09-08
rsrvd:8
data