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Message authentication code

A Message authentication code (MAC) is a one way hash function which takes as input both a symmetric key and some data.

A MAC is usually constructed using a one way hash functions (cf. HMACs) or a block cipher (eg. CBC-MAC).

Referenced By

Block cipher modes of operation | Cipher-block chaining | Cipher feedback | Electronic codebook | Output feedback | Topics in cryptography

 

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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Message authentication code".

 

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