( = cipher-based MAC, "šifripõhine MAC")

olemus
sõnumiautentimiskoodi algoritm:
- põhineb plokkšifril
- on CBC-MAC edasiarendus (= OMAC1 )
- kaitseb ka muutuva pikkusega sõnumite puhul
=
a message authentication code (MAC) algorithm
that is based on a symmetric key block cipher

ülevaateid
https://en.wikipedia.org/wiki/One-key_MAC

https://nvlpubs.nist.gov/nistpubs/specialpublications/nist.sp.800-38b.pdf

https://cryptography.io/en/latest/hazmat/primitives/mac/cmac/

standard
https://tools.ietf.org/html/rfc4493