PMAC (cryptography)

PMAC, which stands for parallelizable MAC, is a message authentication code algorithm. It was created by Phillip Rogaway. PMAC is a method of taking a 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.[1]

gollark: Yes, this is good as they can be detected from across the overworld.
gollark: I don't remember this happening. But I PRed in anonymization a while back.
gollark: Well, if they don't move it's fine, but the IDs were removed some time back.
gollark: If you want to do something actually usefulish, "FORTRESS", you can trilaterate GPS pings and find anyone who sends them (but not actually uniquely identify them since a few versions back).
gollark: If you have a hidden piston door or something and wireless control I guess it makes sense?

References
  1. Rogaway, Phillip. "PMAC – A Parallelizable MAC – Background". Retrieved 6 August 2017.
  • 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. (ps)


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