释义 |
cipher block chaining 密码块链接 In cryptography, a mode of operation which overcomes the cryptographic weakness of the electronic code book mode. The ciphertext output is dependent upon the key and all previous plaintext blocks of the message. Thus highly formatted messages will not suffer from the repetition of ciphertext blocks experienced with electronic code book. 密码学中,一种克服了电子编码本方式的弱点的操作方式,其密文输出与密钥及所有以前输入 的明文块有关。这样,高度格式化的信息也不会象电子编码本方式那样产生密文块的重复。 |