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Mention that Olm uses AES in CBC mode

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Mark Haines 2015-08-04 15:08:52 +01:00
parent 88176ef148
commit 7d805f105e
1 changed files with 3 additions and 3 deletions
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6
specification/41_end_to_end_encryption.rst
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@ -75,12 +75,12 @@ domain to reduce the risk of collisions.
The name "m.olm.v1.curve25519-aes-sha2" corresponds to version 1 of the Olm
ratchet using Curve25519 for the initial key agreement, HKDF-SHA-256 for
ratchet key derivation, Curve25519 for the DH ratchet, HMAC-SHA-256 for the
hash ratchet, and HKDF-SHA-256, AES-256, and 8 byte truncated HMAC-SHA-256
for authenticated encryption.
hash ratchet, and HKDF-SHA-256, AES-256 in CBC mode, and 8 byte truncated
HMAC-SHA-256 for authenticated encryption.
Algorithm names should be short and meaningful. A name of "m.olm.v1" is too
short. However a name of
"m.olm.v1.ecdh-curve25519-hdkfsha256.hmacsha256.hkdfsha256-aes256-hmac64sha256"
"m.olm.v1.ecdh-curve25519-hdkfsha256.hmacsha256.hkdfsha256-aes256-cbc-hmac64sha256"
is too long despite giving a more precise description of the algorithm.
Algorithm names should list the primitives used by the algorithm so that it