Double Ratchet Algorithm: Difference between revisions

Revision as of 00:28, 15 May 2023

Revision as of 00:29, 15 May 2023

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; for the DH ratchet: Elliptic curve Diffie–Hellman (ECDH) with [[Curve25519]],

; for [[message authentication code]]s (MAC, authentication): [[Hash-based message authentication code|Keyed-hash message authentication code]] (HMAC) based on [[SHA-256]],

; for symmetric encryption: the [[Advanced Encryption Standard]] (AES), partially in cipher block chaining [[block cipher mode of operation|mode]] (CBC) with [[padding (cryptography)|padding]] as per [[PKCS]] #5 and partially in Countercounter mode (CTR) without padding,

; for the hash ratchet: HMAC.<ref name="Frosch-2014">{{harvnb|Frosch|Mainka|Bader|Bergsma|2014}}</ref>