重庆大学学报2011，Vol.34Issue(2)：52-57,6.
策略加密的信任协商隐私保护
Police-based encryption for privacy protection of trust negotiation
摘要
Abstract
Privacy protection technologies of automated trust negotiation have witnessed great development, among which hidden credentials is an admittedly more satisfactory one. However, for hidden credentials, there exists fatal weakness of blindly decryption, which results decryption execution costly. To solve the problem, using bilinear pairings over elliptic curves, a policy-based encryption for privacy protection is proposed. Under the assumption of BDH problem, the scheme is proven to be IND-Pol-CCA safety in the random prediction model. Compared with hidden credentials and other encryption solutions based on policy,this scheme is more efficient, secure and of shorter length of cipher text.关键词
自动信任协商/隐私/加密/双线性对/CDH-问题Key words
automated trust negotiation/ privacy / encryption / bilinear pairings / CDH-problem分类
信息技术与安全科学引用本文复制引用
喻玲,陈蜀宇..策略加密的信任协商隐私保护[J].重庆大学学报,2011,34(2):52-57,6.基金项目
重庆市自然科学基金CSTC资助项目(2008BB2307) （2008BB2307）
