在数字化时代,数据传输安全问题日益凸显,传统加密方法存在一定局限。为提升数据传输安全性,提出基于 AES 算法的加密与解密方法。先利用 AES 算法生成数据密钥,该算法高效安全且应用广泛。加密时进行字节代换与列混合操作,前者通过 S 盒对字节非线性替换,后者对数据矩阵列线性变换,增强数据混淆程度。同时,采用人工蜂群算法优化数据与密钥组成的混淆序列,发挥其全局搜索与自适应能力,提高加密安全性和复杂性。实验在不同传输带宽下开展,结果显示,相较于现有方法,此方法能更有效抵御暴力破解攻击,攻击成功次数显著降低,保障了数据传输安全。应用该方法后,加密与解密时间更短、内存占用更少。

In the digital era, the problem of data transmission security has become increasingly prominent, and traditional encryption methods have certain limitations. In order to improve the security of data transmission, this paper proposes an encryption and decryption method based on AES algorithm. Firstly, AES algorithm is used to generate data key, which is efficient, secure and widely used. During encryption, byte substitution and column are mixed, the former is nonlinear byte substitution through S-box, and the latter is linear transformation of data matrix column to enhance the degree of data confusion. At the same time, the artificial bee colony algorithm is used to optimize the confusion sequence composed of data and key, and give full play to its global search and adaptive ability to improve the encryption security and complexity. Experiments are carried out under different transmission bandwidths. The results show that compared with the existing methods, this method can resist brute force attack more effectively, the number of successful attacks is significantly reduced, and the data transmission security is guaranteed. After applying this method, the encryption and decryption time is shorter and the memory usage is reduced.