Cryptology ePrint Archive: Report 2007/450

Short Group Signature without Random Oracles

Xiaohui Liang and Zhenfu Cao and Jun Shao and Huang Lin

Abstract: We construct a short group signature which is proven secure without random oracles. By making certain reasonable assumptions and applying the technique of non-interactive proof system, we prove that our scheme is full anonymity and full traceability. Compared with other related works, such as BW06, BW07, ours is more practical due to the short size of both public key and group signature.

Category / Keywords: group signatures

Publication Info: ICICS 2007

Date: received 1 Dec 2007, last revised 5 Dec 2007

Contact author: liangxh127 at sjtu edu cn

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Version: 20071206:040049 (All versions of this report)

Short URL: ia.cr/2007/450

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