(secret key cryptosystem)

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• Key server (cryptographic) — In computer security, a key server is a computer mdash; typically running special software mdash; which provides cryptographic keys to users or other programs. The users programs can be working on the same network as the key server or on another… …   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

• 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

• 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

• Hybrid cryptosystem — In cryptography, public key cryptosystems are convenient in that they do not require the sender and receiver to share a common secret in order to communicate securely (among other useful properties). However, they often rely on complicated… …   Wikipedia

• Symmetric-key algorithm — Symmetric key algorithms are a class of algorithms for cryptography that use trivially related, often identical, cryptographic keys for both decryption and encryption.The encryption key is trivially related to the decryption key, in that they may …   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

• Naccache–Stern knapsack cryptosystem — Note: this is not to be confused with the Naccache–Stern cryptosystem based on the higher residuosity problem. The Naccache–Stern Knapsack Cryptosystem is an atypical public key cryptosystem developed by David Naccache and Jacques Stern in 1997.… …   Wikipedia

• Naccache-Stern knapsack cryptosystem — Note: this is not to be confused with the Naccache Stern cryptosystem based on the higher residuosity problem.The Naccache Stern Knapsack Cryptosystem is an atypical Public Key Cryptosystem developed by David Naccache and Jacques Stern in 1997.… …   Wikipedia

• Benaloh cryptosystem — The Benaloh Cryptosystem is an extension of the Goldwasser Micali cryptosystem (GM) created in 1994 by Josh (Cohen) Benaloh. The main improvement of the Benaloh Cryptosystem over GM is that longer blocks of data can be encrypted at once, whereas… …   Wikipedia