基于承签原语与多重签名的改进虚拟交易系统方案  

Improved Virtual Transaction System Scheme Based on Commitment-signature Primitive and Multisignature

作　　者：张泓[1] 曹珍富[1,2] 董晓蕾[1,2] 

机构地区：[1]上海交通大学计算机科学与工程系,上海200240 [2]华东师范大学计算机科学与软件工程学院,上海200062

出　　处：《计算机工程》2016年第2期137-141,145,共6页Computer Engineering

基　　金：国家自然科学基金资助项目(61161140320;61033014);国家"973"计划基金资助项目(2012CB723401)

摘　　要：四方参与者虚拟交易系统(4P_VES)在引入第三方支付检测和预防合谋欺骗行为后会增加系统交互流程,影响系统性能。为此,通过融合承诺与签名原语定义承签方案,提出改进的4P_VES方案。采用承签方案同时实现承诺验证与签名认证功能,简化交互流程,并利用多重签名技术减少签名验证次数。分析结果表明,改进的4P_VES方案具有不可伪造性、一致性、不可区分性等属性,且能降低虚拟币发行时间,提高系统整体性能。As the third party payment is introduced into a Four-participants Virtual Economy System（ 4P_VES） to detect and prevent collusion cheat,so many interactions are added,and the system performance is affected. Aiming at the problem,this paper proposes an improved 4P_ VES by commitment-signature scheme based on fusion primitive.Commitment-signature scheme realizes commitment verification and signature authentication,and simplifies the interactions. Multisignature reduces the times of signature verification. Analysis result shows that the improved 4P_VES scheme maintain the properties of unforgeability,consistency,unreusability,and it can reduce time cost,improve system overall performance.

关 键 词：虚拟交易系统 虚拟币 融合原语 承签方案 多重签名 

分 类 号：TP309.2[自动化与计算机技术—计算机系统结构]