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A stream of random or pseudorandom characters that are combined with the plaintext to produce a ciphertext.
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keystream
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Keystream — In cryptography, a keystream is a stream of random or pseudorandom characters that are combined with a plaintext message to produce an encrypted message (the ciphertext).The characters in the keystream can be bits, bytes, numbers or actual… … 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
RC4 — In cryptography, RC4 (also known as ARC4 or ARCFOUR meaning Alleged RC4, see below) is the most widely used software stream cipher and is used in popular protocols such as Secure Sockets Layer (SSL) (to protect Internet traffic) and WEP (to… … Wikipedia
Algoritmo LSA — En criptografía, LSA (acrónimo de Light Summary Algorithm , Algoritmo Ligero de Resumen) es un algoritmo de reducción criptográfico de 64 bits. Codificación La codificación del LSA de 64 bits es representada típicamente como un número de 16… … Wikipedia Español
Correlation attack — In cryptography, correlation attacks are a class of known plaintext attacks for breaking stream ciphers whose keystream is generated by combining the output of several linear feedback shift registers (called LFSRs for the rest of this article)… … Wikipedia
Trivium (Algorithmus) — Struktur von Trivium Trivium ist eine synchrone Stromchiffre, die einen Kompromiss zwischen einfacher und performanter Umsetzbarkeit in Hardware und effizienter Implementierung in Software darstellt. Trivium wurde von den beiden belgischen… … Deutsch Wikipedia
QUAD (cipher) — Infobox block cipher name = QUAD caption = designers = Côme Berbain, Henri Gilbert and Jacques Patarin publish date = May 28, 2006 (at Eurocrypt) derived from = derived to = related to = certification = key size = 80 bits structure = multivariate … Wikipedia
Solitaire (cipher) — The Solitaire cryptographic algorithm was designed by Bruce Schneier to allow field agents to communicate securely without having to rely on electronics or having to carry incriminating tools , [cite web | url =… … 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
Fluhrer, Mantin, and Shamir attack — In cryptography, the Fluhrer, Mantin, and Shamir attack allows an attacker to recover the key in an RC4 encrypted stream from a large number of messages in that stream.BackgroundThe Fluhrer, Mantin and Shamir (FMS) attack takes advantage of a… … Wikipedia
