New RSA-Based (Selectively) Convertible Undeniable Signature Schemes

被引：1

作者：

Phong, Le Trieu ^{[2
]}

Kurosawa, Kaoru ^{[1
]}

Ogata, Wakaha ^{[2
]}

机构：

[1] Ibaraki Univ, Hitachi, Ibaraki 3168511, Japan

[2] Tokyo Inst Technol, Tokyo 1528550, Japan

来源：

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 2010年 / E93A卷 / 01期

关键词：

RSA; undeniable signature; selective/all conversion; standard model; SECURITY;

D O I：

10.1587/transfun.E93.A.63

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, we design and analyze some new and practical (selectively) convertible undeniable signature (SCUS) schemes in both random oracle and standard model, which enjoy several merits over existing schemes in the literature. In particular, we design the first practical RSA-based SCUS schemes secure in the standard model. On the path, we also introduce two moduli RSA assumptions, including the strong twin RSA assumption, which is the RSA symmetry of the strong twin Diffie-Hellman assumption (Eurocrypt'08).

引用

页码：63 / 75

页数：13

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