(or message authentication code), a short piece of information used to authenticate a message, and the algorithm to create and check such information, using a secret key.

learn more… | top users | synonyms

11
votes
3answers
892 views

UMAC: to what extent is it in use today?

Inspired slightly by the Encrypt-then-MAC question. The most obvious message authentication code is probably HMAC or RFC 2104 which is basically a hash of the input, an xor with a key... you get the ...