【摘要】 证明信誉系统中不诚实的服务方可能丢弃对其不利的被鉴定的评分信息,从而间接地提高其信誉,针对这一问题,提出了一种基于SN-Stamp的信誉传播方案。该方案通过数字签名技术实现不可篡改的序号戳,利用序号戳保护对服务方的评分信息的完整性,并且利用中介保留的最近的序号和序号戳中的序号信息能够发现服务方丢弃被鉴定的评分信息的行为。通过安全性和效率分析结果表明,该模型是安全的和有效的,能提高信誉评分传播机制的效率。更多还原

【Abstract】 To solve this problem that dishonest service providers can discard some bad certified ratings about themselves in order to improve their reputation,a reputation propagation scheme based on SN-Stamp is proposed.Digital signature in this scheme is used to implement a serial-number stamp(SN-Stamp) which can’t be forged by malicious party.SN-Stamp is used to protect integrity of rating about service providers and the last serial number is used to check the serial numbers in SN-Stamps such that the behavior of service providers’ discarding bad certified ratings can be found.This scheme is security and efficient through the security and efficiency analysis, it can improve the efficiency of reputation rating propagation scheme.更多还原