Threshold Signature Scheme with Subliminal Channel
Threshold signature is an important signature with additional property; it can achieve effective supervision on signature generating and signature verifying. This paper analyzed the basic principles of threshold cryptosystem and its superiority for application in threshold signature schemes. Considering the security threats and system flaws of present signature schemes, we present a threshold signature scheme based on elliptic curves cryptosystem. The scheme achieves threshold generating and verifying of signature by utilizing secret sharing in signature processing, and it also achieves threshold management of identity tracing by identity blinding and probabilistic encryption algorithms. As security proof for the scheme, we present a typical subliminal channel scheme for the threshold signature. The subliminal message can only be generated and recovered by no less than t valid members; so the subliminal channel renders effective supervision on subliminal message and identity secrecy. Further analyses and comparison also justify the brevity, security and high efficiency of the scheme.
Threshold signature threshold generating and verifying subliminal channel identity supervision system efficiency
Xuanwu Zhou Ping Wei
Key Laboratory of Network & Information Security of the APF, Engineering College of the APF,Xi’an 71 Key Laboratory of Network & Information Security of the APF, Engineering Collegeof the APF,Xi’an 710
国际会议
2009年中国控制与决策会议(2009 Chinese Control and Decision Conference)
广西桂林
英文
1443-1447
2009-06-17（万方平台首次上网日期，不代表论文的发表时间）