block cipher algorithm

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• Block cipher — In cryptography, a block cipher is a symmetric key cipher operating on fixed length groups of bits, called blocks, with an unvarying transformation. A block cipher encryption algorithm might take (for example) a 128 bit block of plaintext as… …   Wikipedia

• Block cipher modes of operation — This article is about cryptography. For method of operating , see modus operandi. In cryptography, modes of operation is the procedure of enabling the repeated and secure use of a block cipher under a single key.[1][2] A block cipher by itself… …   Wikipedia

• GOST (block cipher) — Infobox block cipher name = GOST 28147 89 caption = Diagram of GOST designers = USSR publish date = 1994 (declassified) derived from = derived to = key size = 256 bits block size = 64 bits structure = Feistel network rounds = 32 cryptanalysis =… …   Wikipedia

• KASUMI (block cipher) — Infobox block cipher name = KASUMI caption = designers = Security Algorithms Group of Experts publish date = derived from = MISTY1 derived to = key size = 128 bits block size = 64 bits structure = Feistel network rounds = 8 cryptanalysis =… …   Wikipedia

• S-1 block cipher — In cryptography, the S 1 block cipher was a block cipher posted in source code form on Usenet on 11 August 1995. Although incorrect security markings immediately indicated a hoax, there were several features of the code which suggested it might… …   Wikipedia

• Cipher — For other uses, see Cipher (disambiguation). Edward Larsson s rune cipher resembling that found on the Kensington Runestone. Also includes runically unrelated blackletter writing style and pigpen cipher. In cryptography, a cipher (or cypher) is… …   Wikipedia

• Cipher security summary — This article summarizes publicly known attacks against ciphers. Note that not all entries may be up to date. Table color key No known successful attacks Theoretical break Attack demonstrated in practice The Best attack column lists the complexity …   Wikipedia

• Cipher disk — The Union Cipher Disk from the American Civil War was 3.75 inches (95 mm) in diameter and made of light yellow heavy card stock. It consisted of two concentric disks of unequal size revolving on a central pivot. The disks were divided along their …   Wikipedia

• MacGuffin (cipher) — Infobox block cipher name = MacGuffin caption = The Feistel function of the MacGuffin cipher designers = Bruce Schneier, Matt Blaze publish date = 1994 12 14 derived from = DES derived to = key size = 128 bits block size = 64 bits structure =… …   Wikipedia

• Akelarre (cipher) — Infobox block cipher name = Akelarre designers = G. Álvarez, D. de la Guía, F. Montoya, A. Peinado publish date = 1996 derived from = IDEA, RC5 derived to = related to = key size = 128 bits block size = 128 bits structure = Substitution… …   Wikipedia

• Cipher suite — A cipher suite is a named combination of authentication, encryption, and message authentication code (MAC) algorithms used to negotiate the security settings for a network connection using the Transport Layer Security (TLS) or Secure Sockets… …   Wikipedia