几种加密算法安全性的概率分析

The Probability Comparative about Security of Several Encryption Algorithm

DES、RSA与杂凑函数是现代加密技术的标志性成果 ,这些算法的安全性除了取决于密钥的保密措施外 ,还取决于算法本身 .针对上述几种算法的安全性从概率分析的角度作一个比较 ,对于防止敌手攻击 ,保证加密信息的安全有着直接的意义 .

DES, RSA and Hash function are the symbolized results of modern encryption technique. The security of these algorithm depend on both the security steps of key and the algorithm itself. Next, the security of above algorithm will be compared from the view of probability analysis. It has the direct meaning to prevent enemies from attacking and guarantee the security of encryption information.