Atomic Electronic Contract ProtocolBased on Convertible Signature  

作　　者：LIUYi-chun WANGLi-na ZHANGHuan-guo 

机构地区：[1]SchoolofComputer,WuhanUniversity,Wuhan430072,Hubei,China

出　　处：《Wuhan University Journal of Natural Sciences》2005年第1期227-230,共4页武汉大学学报（自然科学英文版）

基　　金：SupportedbytheNationalNaturalScienceFoundationofChina(90104005,60473023,60373087)

摘　　要：A new class of atomicity, namely contract atomicity is presented. A newtechnical strategy based on convertible signature and two-phase commitment is proposed forimplementing atomicity of electronic contract protocol. A new atomic contract signing protocol isgiven out by using ElGam-al-like convertible undeniable signature and commitment of conversion key,and another new atomic contract signing protocol is brought forward by using RSA-based convertibleundeniable signature scheme and commitment ofconversion key. These two new protocols are proved tobe of atomicity, fairness, prnacy- non-repudiation.A new class of atomicity, namely contract atomicity is presented. A newtechnical strategy based on convertible signature and two-phase commitment is proposed forimplementing atomicity of electronic contract protocol. A new atomic contract signing protocol isgiven out by using ElGam-al-like convertible undeniable signature and commitment of conversion key,and another new atomic contract signing protocol is brought forward by using RSA-based convertibleundeniable signature scheme and commitment ofconversion key. These two new protocols are proved tobe of atomicity, fairness, prnacy- non-repudiation.

关 键 词：electronic contract ATOMICITY convertible signature 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术] F713.36[自动化与计算机技术—计算机科学与技术]