机构地区: 西安电子科技大学
出 处: 《西安电子科技大学学报》 1998年第5期655-658,共4页
摘 要: 各种广义ElGamal签名本质上是可以相互转换的,从而都易受到代换攻击,文中利用它们相互转换的条件来刻画它们之间的一种安全性关系,并从总体上给出了它们的安全性分类.最后指出了在Schnorr模式下所有的广义ElGamal签名是强等价的. All ElGamal type schemes may be transformed into each other essentially, which is vunlnerable under substitution attack. This paper describes a security relation among them according to the transforming conditions, and draws a classification of their security. Finally, it is pointed out that all ElGamal type schemes are strong equivalent in Schnorrmode.