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 method based on chaotic mapping and RC5 algorithm is proposed. Firstly, based on Logistic chaotic mapping, the chaotic encryption 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 encrypted data is scrambled through chaotic mapping to resist plaintext attacks and improve encryption security. The experiment shows that this method encrypts private information more efficiently and has better encryption effects, which can effectively improve the security of ship communication networks.
2024,46(10): 166-169 收稿日期：2024-01-02
DOI：10.3404/j.issn.1672-7649.2024.10.029
分类号：TP309.7
作者简介：金敏捷(1988-),男,硕士,工程师,研究方向为舰船数字化及信息安全保密
参考文献：
[1] 张磊, 李研, 阳生云, 等. 计算机网络信息安全领域中数据加密技术的运用阐述[J]. 软件, 2022, 43(11): 65-67.
[2] 刘银. 基于双混沌算法的网络信息安全加密系统设计[J]. 信息记录材料, 2022, 23(4): 118-120.
[3] 薛来军. 基于改进的ECC的网络信息安全加密方法[J]. 太原师范学院学报(自然科学版), 2022, 21(2): 48-50+89.
[4] 蔡梦睿. 基于数据挖掘的网络隐私信息安全加密系统[J]. 信息技术, 2022, 46(9): 94-99.
[5] KHAN A A , SHAIKH A A , CHEIKHROUHOU O , et al. IMG-forensics: Multimedia-enabled information hiding investigation using convolutional neural network[J]. IET Image Processing, 2022, 16(11), 2854-2862.
[6] XIAO Y , TONG X , ZHANG M , et al. Image lossless encoding and encryption method of EBCOTTier1 based on 4D hyperchaos[J]. Multimedia Systems, 2022, 28(3): 727-748.
[7] 俞兴木, 郑旭飞. 基于矩阵张量积的轻量网络数据传输加密方法[J]. 计算机仿真, 2022, 39(12): 449-453.
[8] 刘育平, 杨尔欣, 高攀, 等. 基于大数据技术的智慧后勤信息动态加密方法[J]. 信息安全研究, 2022, 8(11): 1104-1110.
