exclusive-or ciphertext and plaintext bits

См. также в других словарях:

• Ciphertext stealing — In cryptography, ciphertext stealing (CTS) is a general method of using a block cipher mode of operation that allows for processing of messages that are not evenly divisible into blocks without resulting in any expansion of the ciphertext, at the …   Wikipedia

• складывать биты шифрованного и открытого текста по модулю 2 — — [http://www.rfcmd.ru/glossword/1.8/index.php?a=index d=23] Тематики защита информации EN exclusive or ciphertext and plaintext bits …   Справочник технического переводчика

• Linear cryptanalysis — In cryptography, linear cryptanalysis is a general form of cryptanalysis based on finding affine approximations to the action of a cipher. Attacks have been developed for block ciphers and stream ciphers. Linear cryptanalysis is one of the two… …   Wikipedia

• cryptology — cryptologist, n. cryptologic /krip tl oj ik/, cryptological, adj. /krip tol euh jee/, n. 1. cryptography. 2. the science and study of cryptanalysis and cryptography. [1635 45; < NL cryptologia. See CRYPTO , LOGY] * * * Introduction …   Universalium

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

• Linear feedback shift register — [ xor gate provides feedback to the register that shifts bits from left to right. The maximal sequence consists of every possible state except the 0000 state.] A linear feedback shift register (LFSR) is a shift register whose input bit is a… …   Wikipedia

• Stream cipher attack — Stream ciphers, where plaintext bits are combined with a cipher bit stream by an exclusive or operation (xor), can be very secure if used properly. However they are vulnerable to attack if certain precautions are not followed:*keys must never be… …   Wikipedia

• Pseudorandom number generator — A pseudorandom number generator (PRNG), also known as a deterministic random bit generator (DRBG),[1] is an algorithm for generating a sequence of numbers that approximates the properties of random numbers. The sequence is not truly random in… …   Wikipedia

• XOR cipher — In cryptography, a simple XOR cipher is a relatively simple encryption algorithm that operates according to the principles::A oplus 0 = A,:A oplus A = 0,:(B oplus A) oplus A = B oplus 0 = B,where oplus denotes the exclusive disjunction (XOR)… …   Wikipedia

• Stream cipher — The operation of the keystream generator in A5/1, a LFSR based stream cipher used to encrypt mobile phone conversations. In cryptography, a stream cipher is a symmetric key cipher where plaintext digits are combined with a pseudorandom cipher… …   Wikipedia