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key expansion algorithm

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  • Key schedule — In cryptography, the so called product ciphers are a certain kind of ciphers, where the (de )ciphering of data is done in rounds . The general setup of each round is the same, except for some hard coded parameters and a part of the cipher key,… …   Wikipedia

  • Product key — A Product key (also referred to as a CD key ) is a specific software based key for a certain program or a computer game. It is used to identify that the copy of the program/game is original. Activation is sometimes done offline simply by entering …   Wikipedia

  • Hasty Pudding cipher — Infobox block cipher name = Hasty Pudding Cipher caption = designers = Richard Schroeppel publish date = 1998 ndash;06 derived from = derived to = related to = certification = key size = Variable block size = Variable structure = rounds =… …   Wikipedia

  • Data Encryption Standard — The Feistel function (F function) of DES General Designers IBM First publis …   Wikipedia

  • Blum-Goldwasser cryptosystem — The Blum Goldwasser (BG) cryptosystem is an asymmetric key encryption algorithm proposed by Manuel Blum and Shafi Goldwasser in 1984. Blum Goldwasser is a probabilistic, semantically secure cryptosystem with a constant size ciphertext expansion.… …   Wikipedia

  • Multiple channel cryptography — Infobox block cipher name = MCC designers = Richard Ervasti publish date = 2008 ndash;02 key size = variable block size = variable structure = SPN rounds = 2 cryptanalysis = Multiple channel cryptography (MCC) is an emerging approach to block… …   Wikipedia

  • ElGamal encryption — In cryptography, the ElGamal encryption system is an asymmetric key encryption algorithm for public key cryptography which is based on the Diffie Hellman key agreement. It was described by Taher Elgamal in 1984 [Taher ElGamal, A Public Key… …   Wikipedia

  • Goldwasser-Micali cryptosystem — The Goldwasser Micali cryptosystem (GM) is an asymmetric key encryption algorithm developed by Shafi Goldwasser and Silvio Micali in 1982. GM has the distinction of being the first probabilistic public key encryption scheme which is provably… …   Wikipedia

  • Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium

  • Hash table — Not to be confused with Hash list or Hash tree. Unordered map redirects here. For the proposed C++ class, see unordered map (C++). Hash Table Type unsorted dictionary Invented 1953 Time complexity in big O notation Average Worst case Space …   Wikipedia

  • Scale-invariant feature transform — Feature detection Output of a typical corner detection algorithm …   Wikipedia

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