释义 |
stream cipher 流码,序列密码(法) In cryptography, a method of encryption with the capability of providing perfect secrecy. The plaintext is encoded into numbers, usually binary, and a key stream of random numbers is combined with the plaintext to form the ciphertext. The receiving end is supplied with an identical key stream of random numbers, and the mathematical inverse combination of ciphertext and key stream reveals the plaintext. 密码学中一种具有绝对安全的加密算法。明文编成数据码,通常是二进制码。密钥流是随机的,和明文结合产生密文。接受端也提供完全一样 的随机数密钥流时,密文和密钥流结合便显露出明文来。 |