RFC 3566

The AES-XCBC-MAC-96 Algorithm and Its Use With IPsec, September 2003

Canonical URL:
https://www.rfc-editor.org/rfc/rfc3566.txt
File formats:
Plain TextPDF
Status:
PROPOSED STANDARD
Authors:
S. Frankel
H. Herbert
Stream:
IETF
Source:
ipsec (sec)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC3566

Discuss this RFC: Send questions or comments to iesg@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

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 messages 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. [STANDARDS-TRACK]


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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