【摘要】 作为一种经典密码系统,RSA密码体制是工业加密的标准.现有的许多重数字签名算法大多是基于传统的PKI公钥体制而构建的,然而,由于公钥体制中复杂管理的证书问题,当应用到移动自组网中时会给用户带来沉重的计算负担.为了删除证书的复杂管理,在RSA密码体制下,通过结合基于身份的密码体制和多重数字签名算法,提出了一种高效的安全的多重数字签名方案.该方案通过引入一个密钥产生中心为用户产生密钥,删除了复杂的证书管理问题.同时,该方案在随机预言模型下被可证明是安全的,它的安全性基于强RSA假设.通过与现有的几种多重数字签名方案相比,该方案在计算量上具有较大优势.更多还原

【Abstract】 As a classic crypto-system,RSA cryptosystem is the standard of industrial encryption. Most of existing digital signature schemes are based on the traditional PKI public key system. However,due to the complexity of public key system in the management of certificates,when applied to the mobile ad-hoc network,these schemes can bring heavy computational burden to users. To delete the complex certificate management,under the RSA cryptosystem,by combining identity-based cryptosystem and multiple digital signature algorithms,we propose an efficient and secure multiple digital signature scheme. The scheme removes complex certificate management problems by introducing a key generation center to generate private keys for users. At the same time,the scheme is shown to provably secure under the random oracle model,and its security is based on the strong RSA hypothesis. Compared with the existing multiple digital signature schemes,this scheme has some advantages over the other schemes in terms of computation cost.更多还原