Cryptanalysis of an Identity Based Signcryption without Random Oracles

被引：0

作者：

Xiong, Hu ^{[1
]}

Qin, Zhiguang ^{[1
]}

Li, Fagen ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Engn & Comp Sci, Chengdu 610054, Peoples R China

来源：

FUNDAMENTA INFORMATICAE | 2011年 / 107卷 / 01期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Signcryption; Identity-based cryptography; Chosen plaintext attack;

D O I：

10.3233/FI-2011-395

中图分类号：

TP31 [计算机软件];

学科分类号：

081202 ; 0835 ;

摘要：

Signcryption is a cryptographic primitive that performs digital signature and public key encryption simultaneously, at lower computational costs and communication overhead than signing and encrypting separately. Recently, Yu et al. proposed an identity based signcryption scheme with a claimed proof of security. We show that their scheme is not secure even against a chosen-plaintext attack.

引用

页码：105 / 109

页数：5

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