可信计算是信息安全领域研究的热点，研究可信平台模块的安全性具有重要意义。可信平台模块传统RSA加密算法缺少物理保护，具有受到侧信道攻击的风险。根据抵抗侧信道攻击的传统RSA算法，提出了一种改进方法，将RSA添加伪随机数操作方案改进为在遇到0 b时通过0，1随机数判断是否执行伪随机操作，减少了模乘运算量。研究表明，在保证安全性的前提下，改进的RSA算法可提高模块计算效率。%The trusted computing is a research hotspot in the field of information security,and the study of the trusted plat⁃form module(TPM)security has the great significance. The traditional RSA encryption algorithm of TPM lacks of physical pro⁃tection,and has the risk of side⁃channel attacks. According to the traditional RSA algorithm to resist the side⁃channel attacks, an improved method is put forward. The scheme of adding pseudo⁃random number operation into RSA is improved to determine whether executing pseudo⁃random operation with 0 and 1 random numbers while encountering a 0 b,so as to reduce the modu⁃lar multiply operation. The research shows that the improved RSA algorithm can improve the module calculation efficiency while guaranteeing the security.
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