Attribute-based signature schemes with accountability

被引：0

作者：

Ren, Yan ^{[1
,2
,3
]}

Tang, Chunming ^{[1
,2
]}

Wang, Guilin ^{[4
]}

Wong, DuncaN. S. ^{[5
]}

机构：

[1] College of Mathematics and Information Science, Guangzhou University, Guangzhou, Guangdong

[2] Key Laboratory of Mathematics and Interdisciplinary Sciences of Guangdong, Higher Education Institutes, Guangzhou University, Guangzhou, Guangdong

[3] Department of Applied Mathematics, Yuncheng University, Yuncheng Shanxi

[4] Huawei International Pte Ltd., 20 Science Park Road, Singapore

[5] Department of Computer Science, City University of Hong Kong, Hong Kong

来源：

International Journal of Information and Communication Technology | 2015年 / 7卷 / 2-3期

基金：

中国国家自然科学基金;

关键词：

ABS; Accountable; Attribute authority; Attribute-based signature; Cryptography; Digital signature; Information and communication technology; Key escrow; Key family; Security; Tracing algorithm;

D O I：

10.1504/IJICT.2015.068377

中图分类号：

学科分类号：

摘要：

Since attribute-based signature (ABS) was introduced by Guo and Zeng in 2008, considerable researches have investigated this topic. In an ABS scheme, the attribute authority (A-authority) generates the private key for each user, hence, it has to be completely trusted. The A-authority is free to engage in malicious activities without any risk of being confronted in a court of law. Motivated by this, we firstly propose the notion of accountable attribute-based signature schemes in this paper. It is not only a variant of ABS, but also a new approach to mitigate the key escrow problem. Then, we construct two efficient accountable attribute-based signature schemes. Finally, we prove that the new schemes are secure under the computational Diffie-Hellman (CDH) and the modified computational Diffie-Hellman (MCDH) assumptions. Our main goal is to restrict the conditions that the A-authority can misbehave. In our schemes, if the A-authority maliciously generates and distributes a private key, it will run the risk of being caught and prosecuted. Copyright © 2015 Inderscience Enterprises Ltd.

引用

页码：141 / 158

页数：17

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