基于斜帐篷混沌映射和Arnold变换的图像加密方案

针对单纯使用Arnold变换（猫映射）进行图像加密密钥空间小的问题，基于斜帐篷混沌映射和Arnold变换提出一种新的图像加密算法。算法首先根据明文生成密钥，然后利用斜帐篷混沌映射和Arnold变换对图像进行加密。该算法引入混沌映射大大增加了密钥空间，使密文随机性和抗攻击性更强，确保了加密后的密文更安全。实验表明，该算法可以对图像进行有效加密，可以有效防止针对加密图像的各类攻击。

Image encryption scheme based on skew tent chaotic map and Arnold transformation

For the simple use of Arnold transformation of small key space problem of image encryption, this paper proposed a new image encryption algorithm based on skew tent chaotic map. Firstly, the algorithm used the plaintext to generate the secret key. Then,using the skew tent chaotic map and the Arnold transformation to encrypt image. The introduction of chaotic map greatly increases the key space. Increasing security and randomness, the scheme can better prevent the transformed domain from attack. The experimental results show that the algorithm could effectively encrypt the image, and prevent various attacks against the encrypted image.