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Front. Inform. Technol. Electron. Eng.  2010, Vol. 11 Issue (1): 74-78    DOI: 10.1631/jzus.A0910126
    
A new protocol of wide use for e-mail with perfect forward secrecy
Tzung-her CHEN*, Yan-ting WU
Department of Computer Science and Information Engineering, National Chiayi University, Taiwan 60004, Chiayi City
A new protocol of wide use for e-mail with perfect forward secrecy
Tzung-her CHEN*, Yan-ting WU
Department of Computer Science and Information Engineering, National Chiayi University, Taiwan 60004, Chiayi City
 全文: PDF(219 KB)  
摘要： Recently, Sun et al. (2005) highlighted the essential property of perfect forward secrecy (PFS) for e-mail protocols when a higher security level is desirable. Furthermore, Sun et al. (2005)’s protocols take only a single e-mail server into account. Actually, it is much more common that the sender and the recipient register at different e-mail servers. Compared to existing protocols, the protocol proposed in this paper takes into account the scenario that the sender and the recipient register at different servers. The proposed protocol is skillfully designed to achieve PFS and end-to-end security as well as to satisfy the requirements of confidentiality, origin, integrity and easy key management. The comparison in terms of functionality and computational efficiency demonstrates the superiority of the present scheme.
关键词： E-mail protocol;  Perfect forward secrecy (PFS);  Confidentiality;  End-to-end security    
Abstract: Recently, Sun et al. (2005) highlighted the essential property of perfect forward secrecy (PFS) for e-mail protocols when a higher security level is desirable. Furthermore, Sun et al. (2005)’s protocols take only a single e-mail server into account. Actually, it is much more common that the sender and the recipient register at different e-mail servers. Compared to existing protocols, the protocol proposed in this paper takes into account the scenario that the sender and the recipient register at different servers. The proposed protocol is skillfully designed to achieve PFS and end-to-end security as well as to satisfy the requirements of confidentiality, origin, integrity and easy key management. The comparison in terms of functionality and computational efficiency demonstrates the superiority of the present scheme.
Key words: E-mail protocol    Perfect forward secrecy (PFS)    Confidentiality    End-to-end security
收稿日期: 2009-02-27 出版日期: 2009-11-30
CLC:  TP309  
基金资助:  Project  supported  by  the  National  Science  Council  (No.  NSC  98-2221-E-415-006-)
通讯作者: Tzung-her CHEN     E-mail: thchen@mail.ncyu.edu.tw
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Tzung-her CHEN, Yan-ting WU. A new protocol of wide use for e-mail with perfect forward secrecy. Front. Inform. Technol. Electron. Eng., 2010, 11(1): 74-78.

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