Timeliness optimistic fair exchange protocol based on key-exposure-free chameleon hashing scheme

Author

Sun, Yanbin ; Gu, Lize ; Sihan Qing ; Zheng, Shihui ; Sun, Bin ; Yang, Yixian ; Sun, Yan

Author_Institution

State Key Lab. of Networking & Switching Technol., Beijing Univ. of Posts & Telecommun., Beijing, China

Volume

2

fYear

2010

fDate

7-10 Feb. 2010

Firstpage

1560

Lastpage

1564

Abstract

In ESS2008, Yang et al. suggested a key-exposure-free chameleon hashing scheme, and it can be used to design signature and some other cryptography mechanism. In this paper, we construct a new timeliness optimistic fair exchange protocol based on this key-exposure-free chameleon hashing scheme. The new scheme does not require the use of interactive zero-knowledge proofs in the exchange phase. In our scheme, both parties can contact the trusted third party and settle the argument before the deadline. Moreover, the new scheme achieves fairness and timeliness.

Keywords

cryptographic protocols; digital signatures; cryptography mechanism; interactive zero-knowledge proofs; key-exposure-free chameleon hashing scheme; signature designing; timeliness optimistic fair exchange protocol; trusted third party; Abortion; Contracts; Costs; Cryptographic protocols; Cryptography; Information security; Laboratories; Operations research; Sun; Telecommunication switching; abortion; fair exchange; key-exposure-free chameleon hash; security; timeliness;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Communication Technology (ICACT), 2010 The 12th International Conference on

Conference_Location

Phoenix Park

ISSN

1738-9445

Print_ISBN

978-1-4244-5427-3

Type

conf

Filename

5440327