permutation cipher中文什么意思

置换密码

• cipher:    n. 1.零〔即0〕。 2.数码，阿 ...
• permutation:    （数学中）排列变化，彻底改变; 而不 ...
• in cipher:    用密码

百科释义

In classical cryptography, a permutation cipher is a transposition cipher in which the key is a permutation.