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Transcendence of Number and Some Blind Signature Schemes with Message Recovery

Author: ZuoJingJing
Tutor: YuXiuYuan
School: Hangzhou Normal University
Course: Applied Mathematics
Keywords: Continued fraction Conclusion of the next Digital Signature Message Recovery Blind signature Secret Sharing
CLC: TP309
Type: Master's thesis
Year: 2011
Downloads: 19
Quote: 0
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Abstract


This paper includes research on the the binomial function elements continued fraction of the number of linear - type lower bound and the types of characteristics with message recovery blind signature scheme , made ??the following achievements : 1 ) research to a class binomial function related characteristics of the elements of the continued fraction and knowledge combined with continued fractions and algebraic number on the linear model ∧ = kloga llogβ the lower bound estimate . Wherein {αn (x)} the binomial function column , α, β , y = f (x) in two different integers point value , k, l is an integer insufficiency zero . 2 a ) in research on the basis of the message recovery designated verifier proxy blind signature , put forward the introduction of the concept of security to the signature , put forward a new forward secure recovery message with the specified recipient cooperation blind signature scheme . This signature scheme , signature by signature the initiator and signature collaborators completed . At the same time , the program can achieve : even if the signer's signature key is compromised, the attacker can not forge the signature before previous signature is still valid . 3 ) on the basis of the study the Abound propose a multiple digital signature scheme , the program conducted a safety analysis , and gives a new and improved program . The message in the new program can be the secret transfer by the designated recipient will be restored. The analysis showed that the improved after the new program is safe. 4 ) XIE et al mode - based secret sharing threshold signature scheme is insecure : any t with DC conspire to generate a valid threshold signature and put the blame to others ; any less than t with DC can generate a valid threshold signature . In order to overcome the security weaknesses of the program , given an improved program .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > General issues > Security and confidentiality
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