Data Authentication Algorithm: Difference between revisions

Revision as of 21:04, 3 February 2007

Revision as of 03:35, 20 October 2010

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The '''Data Authentication Algorithm''' ('''DAA''') is a former [[Federal Information Processing Standard|U.S. government standard]] for producing cryptographic [[message authentication code|message authentication codes]]s. According to the standard, a code produced by the DAA is called a '''Data Authentication Code''' ('''DAC'''). The algorithm is not considered secure by today's standards.

The DAA is equivalent to [[CBC-MAC]], with [[Data Encryption Standard|DES]] as the underlying cipher, truncated to between 24 and 56 bits (inclusive).