计算机网络中DES数据加密和解密技术

DES Data Encryption and Decryption Technology in Computer Network

计算机网络中的数据总是通过介质传送,所以数据常常出现被截取、中断、篡改、伪造等安全性问题。随着数字签名、身份验证、数据加密技术的应用,数据安全问题得到了缓解,尤其是数据加密技术使网络数据传输更加安全。本文介绍了数据加密的一般原理,重点研究了计算机网络中DES数据加密过程,并对DES数据加密算法的安全性进行了探讨,同时研究了DES加密算法的安全性。

Data in computer networks was transmitted by media,so data always arise question of cut out,interrupt,modify and gorge.According to data signature,evidence of identity,data encryption was used,the question of data security was solved,especial technicality of data encryption made data transmit become security.The theory of data decryption was introduced,and DES data encryption was studied,at the same time,data encryption algorithm and data decryption technology in computer network was researched.