A method for obtaining digital signatures and public-key cryptosystems
Communications of the ACM - Special 25th Anniversary Issue
Proxy signature schemes based on factoring
Information Processing Letters
A "Paradoxical" Indentity-Based Signature Scheme Resulting from Zero-Knowledge
CRYPTO '88 Proceedings of the 8th Annual International Cryptology Conference on Advances in Cryptology
Verifiable encryption of digital signatures and applications
ACM Transactions on Information and System Security (TISSEC)
A Family of Trusted Third Party Based Fair-Exchange Protocols
IEEE Transactions on Dependable and Secure Computing
An optimistic fair exchange protocol and its security in the universal composability framework
International Journal of Applied Cryptography
Fair exchange protocol of signatures based on aggregate signatures
Computer Communications
Provably secure proxy-protected signature schemes based on RSA
Computers and Electrical Engineering
Efficient Fair Exchange from Identity-Based Signature
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Efficient threshold proxy signature protocol for mobile agents
Information Sciences: an International Journal
An efficient secure proxy verifiably encrypted signature scheme
Journal of Network and Computer Applications
An abuse-free fair contract-signing protocol based on the RSA signature
IEEE Transactions on Information Forensics and Security
Fair exchange of valuable information: A generalised framework
Journal of Computer and System Sciences
Achieving autonomous fair exchange in ubiquitous network settings
Journal of Network and Computer Applications
Optimistic fair exchange of digital signatures
IEEE Journal on Selected Areas in Communications
Preserving Transparency and Accountability in Optimistic Fair Exchange of Digital Signatures
IEEE Transactions on Information Forensics and Security
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Fair signature exchange in emerging ubiquitous commerce (u-commerce) poses new security challenges. In particular, its operations are highly distributed and autonomous, and typically run on much open, dynamic and resource-diversified ubiquitous networks. These characteristics make the exchange very vulnerable to security attacks. Some effort has been made to address the challenges. As a result, an approach to autonomous fair exchange has been proposed specifically for u-commerce. Despite a number of novel features offered by the approach, its weaknesses are low efficiency and high complexity. This paper is aimed at proposing a more efficient and simpler solution for allowing the task of signature exchange to be delegated securely to selected devices in order to facilitate autonomous fair signature exchange on ubiquitous networks. To accomplish this aim, we have produced a novel approach to symmetric-key based verifiable proxy encryption to simplify the signature exchange delegation. Based on this approach, we have developed a new protocol for autonomous fair signature exchange in u-commerce. An analysis of the new protocol has been carried out to confirm its security, fairness and performance. A comparison with related work has demonstrated its better efficiency and simplicity.