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2010•Unpublished venueRequires access

Formal Analysis Of Multi-party Non-repudiation Protocols Without TTP

Xiaoqiong Wang, Xueming Wang

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Abstract

Non-repudiation service is crucial to electronic commerce. Now multi-party non-repudiation is a new focus of research. This paper presents a multi-party non-repudiation protocol, based on a group encryption scheme. A multi-party non-repudiation problem is defined in this paper. This definition and the resulting protocol are more general than the other comparable work. At last, an example of fair multi-party non-repudiation protocol without a trusted third party (TTP) is given out, which uses formal method of SVO logic to analyze the protocol and prove its correctness.

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What this paper is about

Non-repudiation service is crucial to electronic commerce. Now multi-party non-repudiation is a new focus of research. This paper presents a multi-party non-repudiation protocol, based on a group encryption scheme. A multi-party non-repudiation problem is defined in this paper. This definition and the resulting protocol are more general than the other comparable work. At last, an example of fair multi-party non-repudiation protocol without a trusted third party (TTP) is given out, which uses formal method of SVO logic to analyze the protocol and prove its correctness.

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Available abstract

Non-repudiation service is crucial to electronic commerce. Now multi-party non-repudiation is a new focus of research. This paper presents a multi-party non-repudiation protocol, based on a group encryption scheme. A multi-party non-repudiation problem is defined in this paper. This definition and the resulting protocol are more general than the other comparable work. At last, an example of fair multi-party non-repudiation protocol without a trusted third party (TTP) is given out, which uses formal method of SVO logic to analyze the protocol and prove its correctness.

Key concepts: Non-repudiation, Correctness, Trusted third party, Computer science, Computer security, Protocol (science), Third party, Encryption

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