Multimedia Encryption with Multiple Modes Product Cipher for Mobile Devices

The most straight forward method in multimedia encryption is to encrypt the entire stream using standard encryption methods, such as the data encryption standard (DES) or advanced encryption standard (AES). However, in the block ciphering, there exists an attack risk with the weakness of plaintext-ciphertext pairs (i.e. the plaintext-ciphertext pair problem). Therefore, several modes of operation are proposed to solve the above problem. As we all know, channel hopping can defend illegal listening. Thus, this paper has proposed a multimedia encryption scheme with the multiple modes product cipher (MMPC) for mobile devices. In practice, MMPC can increase the security level in wireless multimedia networks. The results of Android applications (Apps) system have shown that the overhead of MMPC is decreased by 2% in throughputs, if it is compared with that of the other straightforward mode ciphers.