A message authentication code [SP38B] that is based on a symmetric block cipher. (See: block cipher.)
A message authentication code [SP38B] that is based on a symmetric block cipher. (See: block cipher.)
Derivation: Cipher-based MAC. (Compare: HMAC.)
Tutorial: Because CMAC is based on approved, symmetric-key block ciphers, such as AES, CMAC can be considered a mode of operation for those block ciphers. (See: mode of operation.)