Journal on Communications ›› 2016, Vol. 37 ›› Issue (6): 49-55.doi: 10.11959/j.issn.1000-436x.2016115

• Papers • Previous Articles     Next Articles

ID-based server-aided verification signature scheme with strong unforgeability

Xiao-dong YANG,Miao-miao YANG,Guo-juan GAO,Ya-nan LI,Xiao-yong LU,Cai-fen WANG   

  1. College of Computer Science and Engineering,Northwest Normal University,Lanzhou 730070,China
  • Online:2016-06-25 Published:2017-08-04
  • Supported by:
    The National Natural Science Foundation of China;The Natural Science Foundation of Gansu Province;The Science and Technology Project of State Archives Administration of China;Research Fund of Higher Education of Gansu Province;Science and Technology Project of Lanzhou City of China;The Foundation for Excellent Young Teachers by Northwest Normal University;The Foundation for Excellent Young Teachers by Northwest Normal University

Abstract:

Most identity-based signature schemes in the standard model are existentially unforgeable,which cannot prevent adversaries from forging valid signatures on messages that have previously been signed.However,signature verification algorithms of ID-based signature schemes in the standard model require expensive bilinear pairing operations.In order to overcome the shortcomings of the existing ID-based signature schemes such as strong security assumption and high computation cost,a strongly unforgeable ID-based server-aided verification signature scheme was presented.This scheme was proven to be secure under collusion attacks,adaptive chosen identity and message attacks in the standard model.Analysis results show that the proposed scheme effectively reduces computation cost of pairing operation,and it greatly reduces computational complexity of signature verification algorithm.The proposed scheme is more efficient than the existing ID-based signature schemes.

Key words: ID-based server-aided verification signature, strong unforgeability, collusion attack, standard model

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