资料来源 : pyDict

数据密钥,(简称为DEK。它将资讯进行加密,并作为该资讯完整性检查的依据)

资料来源 : Free On-Line Dictionary of Computing

Data Encryption Key
     
        (DEK) Used for the {encryption} of message text and for the
        computation of message integrity checks (signatures).
     
        See {cryptography}.
     
        (1994-12-06)