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Implementation of security in a confirmer signature scheme based on DSA and RSA

Lin Fu-huo

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Abstract

There is a drawback of security in the confirmer signature scheme WWZ based on DSA and RSA.It includes non-zero knowledge,weak non-visibility and transferability.The kernel protocol of confirmation and disavowal in the scheme WWZ is not safe.After researching on the drawback of security in the protocol,an improved protocol of confirmation and disavowal is put forward in this paper.The attestations of zero knowledge and non-visibility have been realized in the improved protocol,and then the scheme WWZ will be secure and efficient.

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What this paper is about

There is a drawback of security in the confirmer signature scheme WWZ based on DSA and RSA.It includes non-zero knowledge,weak non-visibility and transferability.The kernel protocol of confirmation and disavowal in the scheme WWZ is not safe.After researching on the drawback of security in the protocol,an improved protocol of confirmation and disavowal is put forward in this paper.The attestations of zero knowledge and non-visibility have been realized in the improved protocol,and then the scheme WWZ will be secure and efficient.

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Available abstract

There is a drawback of security in the confirmer signature scheme WWZ based on DSA and RSA.It includes non-zero knowledge,weak non-visibility and transferability.The kernel protocol of confirmation and disavowal in the scheme WWZ is not safe.After researching on the drawback of security in the protocol,an improved protocol of confirmation and disavowal is put forward in this paper.The attestations of zero knowledge and non-visibility have been realized in the improved protocol,and then the scheme WWZ will be secure and efficient.

Key concepts: Protocol (science), Scheme (mathematics), Signature (topology), Visibility, Transferability, Zero-knowledge proof, Computer science, Computer security

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