混合云环境下基于椭圆曲线加密的隐私保护模型

Privacy Protection Model Based on Elliptic Curve Cryptography Under Hybrid Cloud Environment

为了改善混合云环境下隐私保护性能,确保隐私数据的信息安全,提出一种基于椭圆曲线加密的隐私保护模型.在椭圆曲线密码体制下构造混合云环境中隐私保护的算术编码模型,结合椭圆曲线方程的优化求解过程进行公钥加密的穷尽搜索,构造隐私保护数据加密的主密钥,结合身份认证方案建立门限密码体制,在混合云平台链路层中进行码元频次检测,构建私钥共享方案,根据双线性循环移位方法恢复用户私钥,实现隐私保护.仿真结果表明,采用该加密方法进行用户隐私保护,数据加密的抗攻击性能较好,可信度较高.

In order to improve the performance of privacy protection in hybrid cloud environment, to ensure the information security and privacy data, proposes a privacy protection model based on elliptic curve cryptography. The structural information model of privacy protection arithmetic encoding hybrid cloud environment in elliptic curve cryptography, process optimization combination of elliptic curve equation of public key encryption end the main key structure search, privacy protection data encryption, identity authentication scheme with threshold cryptography, the symbols are detected in the mixed frequency link layer cloud platform, build the private key sharing scheme, bilinear cyclic shift method to restore the user＇s private key to achieve privacy protection. The simulation results show that the encryption method for user privacy protection, data the anti attack performance of encryption is better, higher credibility.