网络主动防御下字符型数据全同态加密仿真
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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.
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.
引文
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[2] 陈智罡,宋新霞,赵秀凤.一个LWE上的短公钥多位全同态加密方案[J].计算机研究与发展,2016,53(10):2216-2223.
[3] 黄保华,王添晶,贾丰玮.数据库中数值型数据的加密存储与查询方法[J].计算机工程,2016,42(7):123-128.
[4] 李程文,王晓明.具有访问权限撤销的外包数据加密方案[J].计算机应用,2016,36(1):216-221.
[5] 李秀娟.探析网络主动防御系统的设计与实现[J].电子设计工程,2017,25(1):27-30.
[6] 邓昀,程小辉.无线传感器网络轻量级数据加密机制设计[J].计算机工程与科学,2017,39(4):663-672.
[7] 任军利.网站管理地址泄露下网页信息快速加密仿真[J].计算机仿真,2017,34(5):269-272.
[8] 王全福,宋文爱,杨顺民.云环境中数据安全的同态加密方法[J].计算机工程与设计,2017,38(1):42-46.
[9] 王育齐,佘堃.通用的量子同态加密框架[J].计算机科学与探索,2016,10(11):1571-1576.
[10] 段然,顾纯祥,祝跃飞,等.NTRU格上高效的基于身份的全同态加密体制[J].通信学报,2017,38(1):66-75.