用于CSCW的一种数据加密算法

数字加密标准和椭圆曲线密码编码法都是公认的优秀数据加密算法,并已应用于计算机支持的协同工作中.这两种算法各有利弊,DES处理效率高,但加密密钥易泄露;ECC密钥易于管理,但比DES处理效率低.为此,提出了一种用两个密钥对明文进行三次加密的3DES法和ECC法相结合的加密算法(称为D-E法).试验结果表明,改算法是可行的和有效的,较好地解决了现有CSCW系统的加密问题.

A Data Encryption Algorithm for CSCW

Datum Encryption Standard(DES)and Elliptic Curve Cryptography (ECC) are both recognized data encryption algorithms, and they have already been applied to Computer Supported Cooperative Work (CSCW) security system. Each has its own strengths and weaknesses. DES is efficient but its key is easily revealed; the key of ECC is well managed, but the process efficiency is lower than DES. This paper puts forward a combined encryption algorithm (D-E algorithm) based on 3DES in which plaintexts are encrypted for three times with two keys and ECC. It is proved that the algorithm is feasible and effective by the experiment result and improves the performance of the CSCW system encryption.