MPEG-4 Image Encryption Research Based on VEA Algorithm

In this thesis, in the foundation of overview the present research situation of encryption algorithm, research on the concrete realization of MPEG video encryption algorithm and the transplantation of DM642, the main research contents are as follows: in simplifies to MPEG-4 VISUAL XviD source code, in the foundation of which we design and implement the representative VEA algorithm and the entropy encoding code table hashing algorithm in the conventional MPEG video encryption algorithm, experimental analysis of the computational complexity and security in the algorithm in this thesis.