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据《Electronics Design》1986年34卷30期报道:现在,唯有AT&T生产的T 7000A数字加密处理器能提供四种方式的DES加密,包括1,8或64比特密码反馈。四种片上密钥和初始值寄存器可以对单一数据流进行高达四次的加密,这样就可达到最大的保
According to “Electronics Design” 1986 Vol. 34, No. 30, only the T 7000A digital encryption processor from AT & T now offers four ways of DES encryption, including 1,8 or 64-bit password feedback. Four on-chip keys and initial value registers enable up to four encryptions of a single data stream for maximum protection