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A securely fair non-repudiation protocol with TTP load lightly

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2 Author(s)
Bo Meng ; Coll. of Comput. Sci. & Technol., Wuhan Univ. of Technol., China ; QianXing Xiong

With the development of electronic, the requirements of the electronic commerce protocols are higher. Non-repudiation is an important property of electronic commerce protocols. The non-repudiation services mainly include the non-repudiation of origin, non-repudiation of receipt, non-repudiation of submission and non-repudiation of transport. Generally, the non-repudiation service evidence is provided by non-repudiation protocol. We discuss non-repudiation services, non-repudiation tokens and related applications, fair non-repudiation protocols. We compare and analyze the related non-repudiation protocols, such as FNP, NRMPR, CEM, CMP1, CMP2, FNRP, in the following aspects: (1) transfer messages in a run; (2) depend on mail relay; (3) generate NROT after a run; (3) generate the NRRT after a run; (4) TTP is a delivery authority; (5) TTP generates the NROT; (6) TTP generates the NRRT; (7) need RSA; (8)need DES; (9) fairness; (10) TTP knows message; (11) message confidentiality; (12) TTP load lightly. Secondly, we propose a securely fair non-repudiation protocol, which transports less data, has better confidentiality of message, lighter load of TTP, better fairness. Thirdly, we analyze its non-repudiation with the authentication logics framework introduced by Kessler&Neumann and fairness.

Published in:

Computer Supported Cooperative Work in Design, 2004. Proceedings. The 8th International Conference on  (Volume:2 )

Date of Conference:

26-28 May 2004

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