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›› 2001, Vol. 18 ›› Issue (2): 124-128.DOI: 10.7523/j.issn.2095-6134.2001.2.006

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A Simple and Secure Threshold RSA Signature Scheme

Wang Guilin1, Wang Mingsheng1, Qing Sihan2, Feng Dengguo2   

  1. 1. State Key Laboratory of Information Security, Institute of Software, Chinese Academy of Sciences;
    2. Engineering Research Center for Information Security Technology of the Chinese Academy of Sciences, Bei jing 100080
  • Received:2001-04-29 Online:2001-03-10

Abstract:

Threshold signature is the generalization of general digital signature, in w hich the sig nature is generated under the cooperation of some members and verified only using the public key of the group.In this paper, based on the interpolating formula in the rational field, a threshold RSA sig nature scheme, under the help of a dealer, is presented.T his simple scheme is secure,and possesses a property that the validity of partial signature is verifiable.

Key words: digital signature, threshold signatre, RSA, cryptography

CLC Number: