key-search cryptanalysis

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• Cryptanalysis — Close up of the rotors in a Fialka cipher machine Cryptanalysis (from the Greek kryptós, hidden , and analýein, to loosen or to untie ) is the study of methods for obtaining the meaning of encrypted information, without access to the secret… …   Wikipedia

• Key size — In cryptography, key size or key length is the size measured in bits[1] of the key used in a cryptographic algorithm (such as a cipher). An algorithm s key length is distinct from its cryptographic security, which is a logarithmic measure of the… …   Wikipedia

• Public-key cryptography — In an asymmetric key encryption scheme, anyone can encrypt messages using the public key, but only the holder of the paired private key can decrypt. Security depends on the secrecy of that private key …   Wikipedia

• Differential cryptanalysis — is a general form of cryptanalysis applicable primarily to block ciphers, but also to stream ciphers and cryptographic hash functions. In the broadest sense, it is the study of how differences in an input can affect the resultant difference at… …   Wikipedia

• Impossible differential cryptanalysis — In cryptography, impossible differential cryptanalysis is a form of differential cryptanalysis for block ciphers. While ordinary differential cryptanalysis tracks differences that propagate through the cipher with greater than expected… …   Wikipedia

• The Search (TV series) — The Search was a seven part television show on Channel 4, which first aired in on January 7, 2007, the final episode was broadcast on February 24, 2007. The premise of the programme was that ten contestants with unique skills must solve a variety …   Wikipedia

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

• DES-X — In cryptography, DES X (or DESX) is a variant on the DES (Data Encryption Standard) block cipher intended to increase the complexity of a brute force attack using a technique called key whitening. The original DES algorithm was specified in 1976… …   Wikipedia

• E0 (cipher) — E0 is a stream cipher used in the Bluetooth protocol. It generates a sequence of pseudorandom numbers and combines it with the data using the XOR operator. The key length may vary, but is generally 128 bits. At each iteration, E0 generates a bit… …   Wikipedia

• Brute-force attack — The EFF s US$250,000 DES cracking machine contained over 1,800 custom chips and could brute force a DES key in a matter of days. The photograph shows a DES Cracker circuit board fitted with 32 Deep Crack chips and some control chips. In… …   Wikipedia

• Advanced Encryption Standard — Infobox block cipher name = AES caption = The SubBytes step, one of four stages in a round of AES designers = Vincent Rijmen, Joan Daemen publish date = 1998 derived from = Square derived to = Anubis, Grand Cru related to = certification = AES… …   Wikipedia