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This draft is a work item of the IP Security Protocol Working Group of the IETF.
Title : The AES-XCBC-MAC-96 Algorithm and Its Use With IPsec
Author(s) : S. Frankel, H. Herbert
Filename : draft-ietf-ipsec-ciph-aes-xcbc-mac-03.txt
Pages : 11
Date : 2003-3-4
A Message Authentication Code (MAC) is a key-dependent one way hash
function. One popular way to construct a MAC algorithm is to use a
block cipher in conjunction with the Cipher-Block-Chaining (CBC) mode
of operation. The classic CBC-MAC algorithm, while secure for mes-
sages of a pre-selected fixed length, has been shown to be insecure
across messages of varying lengths such as the type found in typical
IP datagrams. This memo specifies the use of AES in CBC mode with a
set of extensions to overcome this limitation. This new algorithm is
named AES-XCBC-MAC-96.
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