After analyzing the advantages and the disadvantages of DSE arithmetic and RSA arithmetic, which are both representatives of the traditional cryptogram systems, put forward a model of network data safety system combined two arithmetic.

• 在分析对称密码体制和公开密钥体制的代表DSE和RSA算法的优缺点后，提出将两种算法结合的网络数据安全系统的模型。