A group-oriented (t, n) threshold signature scheme against replay attacks

Authors:
Chin-Chen Chang;Kuo-Lun Chen;Chu-Hsing Lin;Jen-Chieh Chang
Affiliations:
Department of Information Engineering and Computer Science, Feng Chia University, Taichung, Taiwan;Department of Computer Science and Information Engineering, National Chung Cheng University, Chiayi, Taiwan;Department of Computer Science & Information Engineering, Tunghai University, Taichung, Taiwan;Department of Computer Science & Information Engineering, Tunghai University, Taichung, Taiwan
Venue:
UIC'06 Proceedings of the Third international conference on Ubiquitous Intelligence and Computing
Year:
2006

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Abstract

In this paper, a modified signature scheme with (t, n) threshold group-oriented for applications in an ubiquitous environment is proposed. In the proposed scheme, any group of more than t out of n members can cooperate to generate the group signature. The message recovery property is also added into the scheme. By employing the public key of the verifier, the transmission of the signature will be secured. Finally, to detect a removal by an eavesdropper, the linkage property between signed ciphertexts of message blocks is also added into the scheme.