西安电子科技大学学报（自然科学版）2018，Vol.45Issue(1)：117-122,6.DOI:10.3969/j.issn.1001-2400.2018.01.021
满足便携文档格式的公平多方合同签署协议
Fair multi-party contract signing protocol satisfying the portable document format
摘要
Abstract
Currently,there is an inconsistent problem about the content to be signed by multiple signatures that are exchanged in a fair multi-party contract signing protocol (FMCSP) and by those following the portable document format(PDF).This paper tries to solve the practical problem by constructing an FMCSP based on PDF files.It proposes a distributed method to compute hash values so that multiple parties could compute a hash value of a common message while they hide their secrets in the message respectively.It adopts the traditional verifiable encrypted signature technology to guarantee the fairness and reduce the interaction rounds.Finally,it obtains an FMCSP where only one interaction is needed to sign a contract, and gives practical performance parameters.According to the work,one could use a PDF file to fairly sign a document among multiple parties in practical applications,and the final signed PDF file could be verified by a common PDF reader.关键词
多方合同签署协议/便携文档格式/实际应用/公平性/数字签名Key words
multi-party contract signing protocol/portable document format/practical applications/fairness/digital signatures分类
信息技术与安全科学引用本文复制引用
张永强,刘佳南,田海博..满足便携文档格式的公平多方合同签署协议[J].西安电子科技大学学报（自然科学版）,2018,45(1):117-122,6.基金项目
广东省自然科学基金资助项目(2015A030313133) （2015A030313133）
