同态加密是近年来密码学中的热点研究领域。通过对现有构造方法的全面总结,分析了两种构造思路,即Gentry蓝图和BV11方法。同时还介绍了其他类型的同态加密方案,并归纳了现有构造方法存在的问题及研究前景。
Homomorphic encryption is a hot cryptographic research area that allows for a va riety of applications. Through a comprehensive summarization to the existing constructions, we focus on two typical ideas, namely, Gentry blueprint and BV11 method. Besides,other constructions are also introduced. Firally, the inadequacy and research prospect are reviewed.