New Identity-Based Blind Signature and Blind Decryption Scheme in the Standard Model

被引：5

作者：

Phong, Le Trieu ^{[1
]}

Ogata, Wakaha ^{[1
]}

机构：

[1] Tokyo Inst Technol, Tokyo 1528552, Japan

来源：

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 2009年 / E92A卷 / 08期

关键词：

blind HIBE; identity-based blind signature; blind decryption; provable security; standard model; ENCRYPTION; SECURITY;

D O I：

10.1587/transfun.E92.A.1822

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

We explicitly describe and analyse blind hierachical identity-based encryption (blind HIBE) schemes. which are natural generalizations of blind IBE schemes [20]. We then uses the blind HIBE schemes to construct: (1) An identity-based blind signature scheme secure in the standard model, under the computational Diffie-Hellman (CDH) assumption, and with much shorter signature size and lesser communication cost, compared to existing proposals. (2) A new mechanism supporting a user to buy digital information over the Internet without revealing what he/she has bought, while protecting the providers from cheating users.

引用

页码：1822 / 1835

页数：14