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本文参考ISO的DEA1和美国的DES数据加密标准,研究设计了一套采用分组密码体制进行数据加解密的系统,并讨论了它的优点及应用范围。
Based on DEA1 of ISO and DES data encryption standard in the United States, this paper studies a system of data encryption and decryption by using block cipher system and discusses its advantages and applications.