A effective Encryption with Resource Optimization on Multimedia Files for Security

Multimedia data security is important for multimedia commerce. To maintain security and privacy, digital video needs to be stored and processed in an encrypted format. Previous cryptography studies have focused on text data. The encryption algorithms developed to secure text data may not be suitable for multimedia applications because of the large data size and real time constraint. So in this paper, we focus and investigated on the confidentiality of multimedia big data under resources constraints. Firstly, the growth trend of data volume compared with computational resources is discussed and an analysis model for multimedia data encryption optimization is proposed. Secondly, a general-purpose lightweight speed tunable video encryption scheme is introduced. Thirdly, a series of intelligent selective encryption control models are proposed. Fourthly, we as a contribution provide auditing to big files by using hashing algorithm. The experimental results have demonstrated the feasibility and efficiency of the proposed scheme.