网络主动防御下字符型数据全同态加密仿真  

Full-homomorphic encryption simulation of character data under active network defense

作　　者：乌兰 WU Lan(College of media,National University Of The Inner Mongol,Inner Mongolia Tongliao,028000,China)

机构地区：[1]内蒙古民族大学传媒学院

出　　处：《计算机仿真》2019年第6期289-292,共4页Computer Simulation

摘　　要：为了解决当前方法在加密网络主动防御下字符型数据时存在加密性能不高,加解密耗时较长的问题,提出了基于全同态加密方法的网络主动防御下字符型数据保护方法,该方法将全同态加密方法引入字符型数据加密处理中,在分析同态加密方法理论以及同态性检验的基础上,针对其在加密字符型数据时生成的公钥较长方面作出改进,实现一次加密2bit字符型数据,适合较大规模网络的全同态加密机制,检验改进后方法的密文加法运算和密文乘法运算是否满足同态性。仿真测试结果表明,所提方法能够实现网络主动防御下字符型数据的全同态加密,且具有高性能、耗时短的优点。This research proposes a protection method for character type data under network active defense based on fully homomorphism encryption. The method introduced the fully homomorphism encryption method into encryption process of the character data and analyzed theory of the homomorphism encryption and homomorphism test. Based on that, long public key generated during encrypting character data was modified. Thus, 2 bit character data with only one encryption was achieved. It fitted mechanism of fully homomorphism encryption of large-scale network. Add operation and multiplication operation of cryptograph of the modified method was tested to check whether it satisfied the homomorphism. Simulation results show that the method can achieve the fully homomorphism encryption under network active defense. It has higher performance and consumes shorter time.

关 键 词：网络主动防御 字符型数据 全同态加密 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]