首页 | 本学科首页   官方微博 | 高级检索  
     

可转换指定证实人部分盲签名
引用本文:黄振杰,郝艳华,王育民.可转换指定证实人部分盲签名[J].西安电子科技大学学报,2004,31(5):757-760.
作者姓名:黄振杰  郝艳华  王育民
作者单位:西安电子科技大学综合业务网国家重点实验室,西安电子科技大学综合业务网国家重点实验室,西安电子科技大学综合业务网国家重点实验室 陕西西安 710071漳州师范学院计算机科学系福建漳州 363000,陕西西安 710071,陕西西安 710071
基金项目:国家自然科学基金资助项目(19931010),国家973项目(G1999035804)
摘    要:将部分盲签名的概念扩展成可转换指定证实人部分盲签名,给出其正式定义和一个具体的方案.在可转换指定证实人部分盲签名中,只有用户指定的证实人和用户自己才能验证和向他人证实签名的有效性,而且他们还能也只有他们才能将签名转换为通常的部分盲签名.所提出的方案是安全和高效的,其不可伪造性与Schnorr方案相同,其不可传递性基于Diffie-Hellman问题.该方案还可当作盲签名方案或一般部分盲签名方案使用.

关 键 词:密码学  数字签名  部分盲签名  指定证实人
文章编号:1001-2400(2004)05-0757-04

Convertible designated confirmer partially blind signatures
HUANG Zhen-jie.Convertible designated confirmer partially blind signatures[J].Journal of Xidian University,2004,31(5):757-760.
Authors:HUANG Zhen-jie
Affiliation:(1. State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an 710071, China;2. Dept. of Computer Science, Zhangzhou Teachers College, Zhangzhou 363000, China)
Abstract:The concept of partially blind signature is extended to the convertible designated confirmer partially blind signature, which has an additional property that only the designated confirmer and the user can verify and prove the validity of given signatures and convert given signatures into universally verifiable partially blind signatures. A formal definition is given and a practical scheme is proposed. The proposed scheme is efficient and secure, in which its unforgeability is the same as that of the Schnorr's signature scheme and its untransferability relies on the hardness of the Decision-Diffie-Hellman problem. Furthermore, the proposed scheme can be used as a normal partially blind signature scheme by letting the designated confirmer's secret key be a common constant.
Keywords:cryptography  digital signautre  partially blind signature  designated confirmer
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《西安电子科技大学学报》浏览原始摘要信息
点击此处可从《西安电子科技大学学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号