›› 2012, Vol. 25 ›› Issue (12): 1-.

• Articles •     Next Articles

An Identity-Based Threshold Signature Without Trust Party

JIAO Dan-Dan, WANG Bao-Cang   

  1. (1.School of Science,Xidian University,Xi'an 710071,China;
    2.ISN Key Laboratory,Xidian University,Xi'an 710071,China)
  • Online:2012-12-15 Published:2013-02-28

Abstract:

A new threshold signature without trust party is proposed from the bilinear parings based on a new identity-based signature scheme.The proposed threshold signature scheme needs an interactive protocol among participants in the key generation.It solves the problem of key escrow.It is shown that the signature scheme is secure with good robustness and unforgeability.

Key words: identity-based signature;threshold signature;without random oracles;without trusted party

CLC Number: 

  • TP309