舰船通信网络隐私信息安全加密方法研究

Research on privacy information security encryption methods for ship communication networks

为提高舰船通信网络隐私信息的安全性,提出基于混沌映射和RC5算法的安全加密方法。首先,以Logistic混沌映射为基础,通过主、辅混沌过程的扰动变量,不断迭代网络隐私信息的混沌加密过程,得到网络隐私信息的混沌序列,并将其作为隐私信息的加密密钥;然后,通过RC5算法的轮函数和移位操作,对之前生成的密钥与数据进行逐位异或运算,实现对舰船通信网络隐私信息数据的加密处理;最后,通过混沌映射置乱变换加密后的数据,抵抗明文攻击问题,提升加密安全性。实验表明,该方法加密隐私信息的效率更快,加密效果更好,可以有效提升舰船通信网络的安全性。

To improve the security of privacy information in ship communication networks,a secure encryption meth-od based on chaotic mapping and RC5 algorithm is proposed.Firstly,based on Logistic chaotic mapping,the chaotic encryp-tion process of network privacy information is iteratively obtained by perturbing variables in the main and auxiliary chaotic processes,and the chaotic sequence of network privacy information is used as the encryption key for privacy information;Then,through the round function and shift operation of the RC5 algorithm,the previously generated key and data are XOR bit by bit to achieve encryption processing of privacy information data in the ship communication network;Finally,the en-crypted data is scrambled through chaotic mapping to resist plaintext attacks and improve encryption security.The experi-ment shows that this method encrypts private information more efficiently and has better encryption effects,which can ef-fectively improve the security of ship communication networks.