| 释义 |
polyalphabetic cipher
多字母表密码
In data security, a substitution cipher employing a cluster of monoalphabetic ciphers. A cryptographic key is repeatedly writer above the plaintext and the key letter indicates which particular monoalphabetic cipher is to be employed to encrypt the corresponding plaintext letter.
在数据保密学中,使用一族单字母表密码的置换密码。密钥重复地写在明文上,密钥字母用来指示用哪一个单字母表密码 来加密相应的明文字母。比较monoalphabetic cipher。 |