provably secure system

См. также в других словарях:

• Trusted system — In the security engineering subspecialty of computer science, a trusted system is a system that is relied upon to a specified extent to enforce a specified security policy. As such, a trusted system is one whose failure may break a specified… …   Wikipedia

• Cryptographic hash function — A cryptographic hash function (specifically, SHA 1) at work. Note that even small changes in the source input (here in the word over ) drastically change the resulting output, by the so called avalanche effect. A cryptographic hash function is a… …   Wikipedia

• Chosen-ciphertext attack — A chosen ciphertext attack (CCA) is an attack model for cryptanalysis in which the cryptanalyst gathers information, at least in part, by choosing a ciphertext and obtaining its decryption under an unknown key. In the attack, an adversary has a… …   Wikipedia

• Cramer-Shoup cryptosystem — The Cramer Shoup system is an asymmetric key encryption algorithm, and was the first efficient scheme proven to be secure against adaptive chosen ciphertext attack using standard cryptographic assumptions. Its security is based on the… …   Wikipedia

• Cramer–Shoup cryptosystem — The Cramer–Shoup system is an asymmetric key encryption algorithm, and was the first efficient scheme proven to be secure against adaptive chosen ciphertext attack using standard cryptographic assumptions. Its security is based on the… …   Wikipedia

• Quantum cryptography — Quantum cryptography, or quantum key distribution (QKD), uses quantum mechanics to guarantee secure communication. It enables two parties to produce a shared random bit string known only to them, which can be used as a key to encrypt and decrypt… …   Wikipedia

• CRYPTREC — is the Cryptography Research and Evaluation Committee set up by the Japanese Government to evaluate and recommend cryptographic techniques for government and industrial use. It is comparable in many respects to the European Union s NESSIE project …   Wikipedia

• Friend-to-friend — A friend to friend (or F2F) computer network is a type of peer to peer network in which users only make direct connections with people they know. Passwords or digital signatures can be used for authentication.Many F2F networks support indirect… …   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

• 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

• RSA — In cryptography, RSA is an algorithm for public key cryptography. It is the first algorithm known to be suitable for signing as well as encryption, and one of the first great advances in public key cryptography. RSA is widely used in electronic… …   Wikipedia