保留格式加密的白皮书。保留格式加密可以解决相同格式的明文与密文之间的加密问题，适用于数据库字段的加密等。-Encrypted format to retain the White Paper. Encryption can be resolved to retain the same format as the format of the plaintext and ciphertext encryption between the applied field of encryption in

AES算法加密图像,参照AES的标准白皮书，完成了AES对图像的加密-encryption of image using AES