作者:
E Bresson
关键词:
摘要:
In this paper, we investigate the recent paradigm for group signatures proposed by Rivest et al. at Asiacrypt '01. We first improve on their ring signature paradigm by showing that it holds under a strictly weaker assumption, namely the random oracle model rather than the ideal cipher. Then we provide extensions to make ring signatures suitable in practical situations, such as threshold schemes or ad-hoc groups.
在线下载