View source for PMAC (cryptography)

{{Short description|Message authentication code algorithm}}
'''PMAC''', which stands for '''parallelizable MAC''', is a [[Message authentication code|message authentication code]] algorithm.  It was created by Phillip Rogaway.
PMAC is a method of taking a [[Block cipher|block cipher]] and creating an efficient message authentication code that is reducible in security to the underlying block cipher.

PMAC is similar in functionality to the OMAC algorithm.

==Patents==
PMAC is no longer patented and can be used royalty-free. It was originally patented by Phillip Rogaway, but he has since abandoned his patent filings.<ref>{{cite web |url=http://web.cs.ucdavis.edu/~rogaway/ocb/pmac-bak.htm |title=PMAC – A Parallelizable MAC – Background|last=Rogaway|first=Phillip|access-date=6 August 2017}}</ref>

==References==
{{reflist}}

==External links==
* [http://www.cs.ucdavis.edu/~rogaway/ocb/pmac.htm Phil Rogaway's page on PMAC]
* Changhoon Lee, Jongsung Kim, Jaechul Sung, Seokhie Hong, Sangjin Lee. "Forgery and Key Recovery Attacks on PMAC and Mitchell's TMAC Variant", 2006. [http://www.cosic.esat.kuleuven.be/publications/article-779.ps] (ps)
* [https://github.com/RustCrypto/MACs/tree/master/pmac Rust implementation]

{{Cryptography navbox | hash}}

[[Category:Message authentication codes]]



{{Sourceattribution|PMAC (cryptography)}}