Block ciphers can be used in many cryptographic primitives, such as encryption and message authentication code (MAC).
分组密码广泛应用于各类密码算法，如加密算法和消息认证码(MAC)。
2
A cryptographic system in which units of plain text of regular length, usually letters, are arbitrarily transposed or substituted according to a predetermined code.
密码：一种密码系统，其中固定长度的明文里的单元，通常为字母，被任意倒置或按事先确定的符号系统替换。
3
The physical name includes the name of the assembly that the code lives in, the version number, the locale, and the cryptographic key associated with the name.