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Original Articles

Undeniable (t, n)‐threshold signature scheme with cheater identification

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Pages 775-780 | Received 12 May 1998, Accepted 20 Aug 1998, Published online: 03 Mar 2011
 

Abstract

We propose an undeniable (t, n) threshold signature scheme with cheater identification. The proposed scheme has the following features: (1) no trusted third party is required for key generation; (2) no additional interactive protocol is required for the generation of the group's public key; (3) any t members can cooperatively sign a message with the assistance of a secure cryptographic module designated by hardware; and (4) the verifier can verify the group signature by only knowing the group's public key; it is not necessary to know the participating signers involved. The proposed scheme also provides capabilities against cheating tricks plotted by signers in the key generation and group signature generation phases.

Notes

Correspondence addressee

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