An Improved Ring Signature Scheme without Trusted Key Generation Center for Wireless Sensor Network

Security of wireless sensor network （WSN） is a considerable challenge, because of limitation in energy, communication bandwidth and storage. ID-based cryptosystem without checking and storing certificate is a suitable way used in WSN. But key escrow is an inherent disadvantage for traditional ID-bas...

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Bibliographic Details
Published in:Shanghai jiao tong da xue xue bao 2009-04, Vol.14 (2), p.189-194
Main Author: 肖俊芳 曾贵华
Format: Article
Language:English
Subjects:
Architecture
Computer Science
Electrical Engineering
Engineering
Life Sciences
Materials Science
基于身份的密码体制
复杂性
密钥托管
密钥生成
带宽和
无线传感器网络
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Summary:Security of wireless sensor network （WSN） is a considerable challenge, because of limitation in energy, communication bandwidth and storage. ID-based cryptosystem without checking and storing certificate is a suitable way used in WSN. But key escrow is an inherent disadvantage for traditional ID-based cryptosystem, i.e., the dishonest key generation center （KGC） can forge the signature of any node and on the other hand the node can deny the signature actually signed by him/herself. To solving this problem, we propose an ID-based ring signature scheme without trusted KGC. We also present the accurate secure proof to prove that our scheme is secure against existential forgery on adaptively chosen message and ID attacks assuming the complexity of computational Diffie-Hellman （CDH） problem. Compared with other ring signature schemes, we think proposed scheme is more efficient.
ISSN:1007-1172
1995-8188
DOI:10.1007/s12204-009-0189-x