Browsing by Author "Liu, LS"

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A threshold GQ signature scheme
(2003)
Liu, LS
;
Chu, CK
;
Tzeng, WG
;
資訊工程學系
;
Department of Computer Science
We proposed the first threshold CQ signature scheme. The scheme is unforgeable and robust against any adaptive adversary if the base GQ signature scheme is unforgeable under the chosen message attack and computing the discrete logarithm modulo a safe prime is hard. Furthermore, our scheme can achieve optimal resilience by some modification.