Digital signature forgery — In a cryptographic digital signature or MAC system, digital signature forgery is the ability to create a pair consisting of a message m and a signature (or MAC) σ that is valid for m, where m has not been signed in the past by the legitimate… … Wikipedia
Existential forgery — In a digital signature or Message Authentication Code (MAC) system, an existential forgery is the creation (by an adversary) of any message m and a valid signature (or MAC) sigma for m, where m has not been signed or MACed in the past by the… … Wikipedia
Maccus mac Arailt — (died 984x987?) or Maccus Haraldsson was a Scandinavian or Norse Gael king. He and his brother Gofraid were active in the lands around the Irish Sea in the 970s and 980s. Maccus s name is sometimes incorrectly given as Magnus; it is instead a… … Wikipedia
Mark Hofmann — For the character in the Saw film series, see Mark Hoffman. Mark William Hofmann (born December 7, 1954) is an American counterfeiter, forger and convicted murderer. Widely regarded as one of the most accomplished forgers in history, Hofmann is… … Wikipedia
Mark William Hofmann — (born 7 December 1954) is an American counterfeiter, forger and murderer. Widely regarded as one of the most accomplished forgers in history, Hofmann is especially noted for his creation of documents related to the history of the Latter Day Saint … Wikipedia
William Johnson, 1st Baronet — Sir William Johnson, 1st Baronet (1715 ndash; 11 July 1774), founder of Johnstown, New York, was an Irish pioneer and army officer in colonial New York, and the British Superintendent of Indian Affairs from 1755 to 1774. He served on the Governor … Wikipedia
Clan Sweeney — A plate from The Image of Irelande, by John Derrick, published in 1581. The chief sitting at his table, entertained by his bard and harper is thought to be a Mac Sweyne .[citation needed] Clan Sweeney … Wikipedia
Message authentication code — In cryptography, a message authentication code (often MAC) is a short piece of information used to authenticate a message. A MAC algorithm, sometimes called a keyed (cryptographic) hash function, accepts as input a secret key and an arbitrary… … Wikipedia
Clan Macdonald of Clanranald — Crest badge … Wikipedia
Clan MacLeod of Lewis — Clan Macleod of the Lewes Crest badge … Wikipedia
