Analysis And Research Of Multiple Digital Signature Scheme

In this article, which is analysis and study a lot of document about sequentialmulti digital signature and broadcasting multiple digital signature scheme. Fromthe validity of the signature, non-repudiation, and other aspects such as safety,found that the defciency of the previous schemes. Aiming at these defciencies, thesolutions are studied. To analysis and research scheme, By the analysis of scheme,we fnd that is more safer to Resistance internal attackers and the attacker’s attackThe paper is researched mainly as the following aspects:1. This paper is analyzed Wang Tianyin, Zhang Jianzhong whom proposedsequential multi-digital signature scheme. Focus on the signature verifcation pro-cess. We found that after the signers signed, the signature result only be sented tothe next signer, The others can’t be verify whether it was right of the information.Through what mention above the dishonesty signer success in denied since signature.Aimed at the defects of the signature scheme, By the analysis of the new schemecan resist external and internal attackers the attacker’s attack.2. This paper also analyzed the multiple digital signature algorithm of ZhangYaling for the identity authentication aspect, We fnd that in zhang’s signaturescheme, not to certify the identity information of the sender, anyone who will fakethe signer to send message can eventually collected Right sign of all the signers.The signers through verifying the encrypted information, verify the identity of thesignature sponsor. This solves the problem of fake identity, it prevent faker fromstealing the signature result.By the analysis of the new scheme has higher security.