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本文从同余理论中的中国剩余定理出发,阐述了其在现代密码技术技术中的广泛运用与影响。在此基础上,我们主要被完成了以下的工作:第一,介绍了一种基于中国剩余定理的群签名方案的系...
本文从同余理论中的中国剩余定理出发,阐述了其在现代密码技术技术中的广泛运用与影响。在此基础上,我们主要被完成了以下的工作:
第一,介绍了一种基于中国剩余定理的群签名方案的系统缺陷,构造了两种基于公共模问题的攻击方法。而后,对其系统进行了改进,在保留了中国剩余定理的优点的情况下,提高了其安全性。
第二,介绍了以中国剩余定理作为理论基础的asmuth-bloom秘密共享体系应用于数字水印中,提出了一种嵌入和检测联合数字水印方法。在多个用户的应用环境中,这种方法不但加强了数字水印信息的安全性,防止某个仅有联合所有权的用户滥用权限,而改进了数字水印信息的冗余性。
此外,本文介绍了一种基于群签名的考试管理,利用网络对考试成绩进行群签名管理可以提高安全性。 展开
第一,介绍了一种基于中国剩余定理的群签名方案的系统缺陷,构造了两种基于公共模问题的攻击方法。而后,对其系统进行了改进,在保留了中国剩余定理的优点的情况下,提高了其安全性。
第二,介绍了以中国剩余定理作为理论基础的asmuth-bloom秘密共享体系应用于数字水印中,提出了一种嵌入和检测联合数字水印方法。在多个用户的应用环境中,这种方法不但加强了数字水印信息的安全性,防止某个仅有联合所有权的用户滥用权限,而改进了数字水印信息的冗余性。
此外,本文介绍了一种基于群签名的考试管理,利用网络对考试成绩进行群签名管理可以提高安全性。 展开
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From the theory of congruence of China, this article expounds the remainder theorem in the modern technology is widely used in the password and influence. On this basis, we mainly was completed the following:
First, this paper introduces a kind of Chinese remainder theorem based on the group signature scheme of the system, the two kinds of defects on the problems of public mode. Then, in the system were improved, and the Chinese remainder theorem in the circumstances, the advantages of improving its safety.
Second, introduced in China as the theoretical basis of the remainder theorem asmuth - bloom secret sharing system applied in the digital watermark is proposed, and the detection watermarking embedding method combined. In the application of multiple users, this method not only in the environment, to strengthen the security of watermark figures, prevent a joint ownership users only, and improved the abuse of authority digital watermarking information redundancy.
In addition, this paper introduces a kind of examination management based on group signature, using the Internet to test scores can improve the safety management of group signature
First, this paper introduces a kind of Chinese remainder theorem based on the group signature scheme of the system, the two kinds of defects on the problems of public mode. Then, in the system were improved, and the Chinese remainder theorem in the circumstances, the advantages of improving its safety.
Second, introduced in China as the theoretical basis of the remainder theorem asmuth - bloom secret sharing system applied in the digital watermark is proposed, and the detection watermarking embedding method combined. In the application of multiple users, this method not only in the environment, to strengthen the security of watermark figures, prevent a joint ownership users only, and improved the abuse of authority digital watermarking information redundancy.
In addition, this paper introduces a kind of examination management based on group signature, using the Internet to test scores can improve the safety management of group signature
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