RSA密钥强度量化与筛选模型的分析与研究

RSA算法在信息安全领域应用很广,其安全性经受了数十年的考验.然而,密钥安全不同于算法安全,它常为人们所忽视.在大多数实现中,人们对RSA密钥本身的安全性缺乏认识,这样,即使采用强算法也会引发安全问题.围绕RSA密钥的安全性度量问题,从已知明文的RSA攻击出发,提出了对RSA密钥安全性进行度量的数学模型和密钥安全系数的概念系统,分析了安全强度系数.密钥数量的分布,设计了对密钥强度量化的方法,改进了RSA密钥产生算法.并对其在深腾1800集群平台上进行了仿真分析,对于增强RSA算法实现的安全性有着积极的参考意义.

Research and analysis on model of testing and quantitating strength about RSA keys

The RSA algorithm is applied very broadly in the information security domain,its security has undergone examining over dozens of years practice.However the algorithm security and the key safe are two different concepts,the latter often is neglected by the people,in the big number of realization,when the RSA algorithm is used to generate the key,the people lack the understanding to the key itself security,thus the strong algorithm is aslo used to initiate the security problem.The RSA key the security measure question is revolved,beginning from the known plaintext RSA attack and the mathematical model on the measure of the RSA key security and the key safety coefficient concept system are proposed,strength coefficient-key quantity distribution is analyzed,a method to quantitate the key intensity is designed,the algorithm to generate RSA key is improved,and then the simulation analysis to it in the 1800 clustering computer platforms is carried on,whole of work has a lot of positively value of reference regarding strengthening the RSA algorithm rea-lization the security.