des是

DES(Data Encryption Standard),是1977年由美国NSA根据IBM的专利技术Lucifer所制定。在DES中,明文被分成64位的块,对每个块进行19次变换(替代和换位),其中16次变换由56位的秘钥的不同排列形式控制(IBM使用128位的秘钥),最后产生64位的密文块。后来基... 详情>>数据加密标准 - 国际贸易术语 - 药物涂层支架baike.so.comTIME.rfTime = +new

The threedesGrassins had their adherents too, their cousins and their trusty allies..Cryptography curriculum design to achieveDESencryption and decryption functions...www.iciba.com