ES is a symmetric block cipher. The same key is used to encrypt and decrypt the message. The plain text and the cipher text are the same size. The Aes algorithm works as follows: Convert to state array: This step consists of conversion on the

encryption and decryption of image using bit XOR-encryption and decryption of image using bit XOR..

DES function for the encryption of DES,use matlab to make it possible,first input in the function is plaintext ,second one is key,and last is to choose encrypt or decrypt

MATLAB实现的LSBM（LSB Matching）算法，可输入密钥加密和解密文本，有较好的交互界面(The LSB matching algorithm,coding by MATLAB. You can encrypt or decrypt the text by input an key. And it has a easy operating interactive interface.)