Selective encryption of Huffman compressed text

Miodrag Živković

The security of multimedia data in digital distribution networks is commonly provided by encryption, i.e., the mathematical process that transforms a plaintext message into unintelligible ciphertext. Selective encryption is a recent approach to reduce the computational requirements for huge volumes of multimedia data in distribution networks with different client device capabilities. We propose a method for selective encryption that can be applied to compressed data - for example to Huffman compressed text.