Current grid authentication frameworks are achieved by applying the standard SSL authentication protocol （SAP）. The authentication process is very complicated, and therefore, the grid user is in a heavily loaded poi...Current grid authentication frameworks are achieved by applying the standard SSL authentication protocol （SAP）. The authentication process is very complicated, and therefore, the grid user is in a heavily loaded point both in computation and in communication. Based on identity-based architecture for grid （IBAG） and corresponding encryption and signature schemes, an identity-based authentication protocol for grid is proposed. Being certificate-free, the authentication protocol aligns well with the demands of grid computing. Through simulation testing, it is seen that the authentication protocol is more lightweight and efficient than SAP, especially the more lightweight user side. This contributes to the larger grid scalability.展开更多
针对异构密码系统的签密算法大多采用的是公钥加密技术,不具有可加密任意长消息的特点,不符合现实的应用环境,而混合签密技术则可解决这一不足。提出了一个基于异构密码系统的混合签密方案。该方案是由基于身份的密码(Identity Based Cr...针对异构密码系统的签密算法大多采用的是公钥加密技术,不具有可加密任意长消息的特点,不符合现实的应用环境,而混合签密技术则可解决这一不足。提出了一个基于异构密码系统的混合签密方案。该方案是由基于身份的密码(Identity Based Cryptography,IBC)体制到无证书密码(Certificateless Cryptography,CLC)体制的异构签密方案。不但能使私钥生成器(Private Key Generator,PKG)和密钥生成中心(Key Generating Center,KGC)分别在IBC密码体制和CLC密码体制中产生自己的系统主密钥,同时,在随机预言模型下,方案在计算性DiffieHellman和双线性Diffie-Hellman困难问题下具有不可伪造性和不可区分性。展开更多
基金the Sichuan Provincial Youth Software Innovation Foundation (2004AA03692005AA0827).
文摘Current grid authentication frameworks are achieved by applying the standard SSL authentication protocol （SAP）. The authentication process is very complicated, and therefore, the grid user is in a heavily loaded point both in computation and in communication. Based on identity-based architecture for grid （IBAG） and corresponding encryption and signature schemes, an identity-based authentication protocol for grid is proposed. Being certificate-free, the authentication protocol aligns well with the demands of grid computing. Through simulation testing, it is seen that the authentication protocol is more lightweight and efficient than SAP, especially the more lightweight user side. This contributes to the larger grid scalability.
