信阳师范学院学报（自然科学版）Issue(2)：170-175,6.DOI:10.3969/j.issn.1003-0972.2014.02.004
对一个无证书部分盲签名方案的分析与改进
Cryptanalysis and Improvement of a Certificateless Partially Blind Signature Scheme
摘要
Abstract
A certificateless partially blind signature scheme proposed by Tang PZ et al was analyzed and it was pointed out that the signature requester can change the negotiated information illegally. In order to resist tampering at-tack on negotiated information effectively, an improved certificateless partially blind scheme was proposed and proved to be existentially unforgeable against adaptive chosen message and identity attacks from two types of adversaries in certifi-cateless cryptosystems in random oracle model. The security of the improved scheme is reduced to collusion attack algo-rithm with ktraitors and inverse computational Diffie-Hellman assumption.关键词
部分盲签名/双线性对/无证书密码体制/随机预言机模型/公共信息Key words
partially blind signature/bilinear pairing/certificateless cryptography/random oracle model/com-mon information分类
信息技术与安全科学引用本文复制引用
何俊杰,张帆,邵辉..对一个无证书部分盲签名方案的分析与改进[J].信阳师范学院学报（自然科学版）,2014,(2):170-175,6.基金项目
国家自然科学基金项目（61272465）；河南省自然科学基金项目（142300410320，122400450189）；河南省教育厅科学技术研究重点项目（14B520046）；信阳师范学院青年基金项目 （）
