动态对称密钥加密算法下终端升级文件安全传输

Secure transfer of terminal upgraded files based on dynamic symmetric key encryption

为了提高终端升级文件的安全传输能力,需要进行文件加密设计,提出基于动态对称密钥设计的终端升级文件加密安全传输方法。采用无代理密钥发布协议进行终端升级文件的访问控制,构建终端升级文件的动态对称密钥;结合双线性映射方法进行终端升级文件安全加密过程中的密钥构造和算术编码设计;根据明文攻击的强度对终端升级文件进行置乱度重排,采用随机线性编码方法完成终端升级文件的动态对称密钥加密,实现文件的安全传输。仿真测试结果表明,采用该方法进行终端升级文件加密和传输的安全性较好,抗攻击能力较强,提高了文件的安全传输性能。

In order to improve the security transmission capability of the file,a file encryption design is needed,and a method for secure transmission of the terminal upgrade file based on the dynamic symmetric key design is proposed.The agentless key publishing protocol is used to control the access of the terminal upgrade file,and the dynamic symmetric key of the terminal upgrade file is constructed.Key construction and arithmetic coding design in terminal security file security encryption process combined with bilinear mapping method.The terminal upgrade file is rearranged according to the strength of the plaintext attack,and the random symmetric coding method is used to complete the dynamic symmetric key encryption of the terminal upgrade file to implement secure file transmission.The simulation test results show that the security of the terminal upgrading file encryption and transmission is good,the anti-attack capability is strong,and the security transmission performance of the file is improved.