一个高效的可验证加密签名方案

摘要

利用椭圆曲线上的双线性对,构造一个新的可验证加密签名方案,该方案在随机预言模型下具有不可伪造性和不透明性.由于该方案只有两次对运算,所以运算效率很高.可验证加密签名常用来构造优化公平交换协议,在电子商务领域里有着广泛应用.%A verifiably encrypted signature scheme based on bilinear pairings is proposed, which can be proved to provide unforgeability and opacity in the random oracle model. There are two pairing operations in this scheme,so it is more efficient.Verifiably encrypted signatures can be used to design optimistic fair exchange protocols and used in applications such as electronic business.