Selective Encryption Framework for Secure Multimedia Transmission over Wireless Multimedia Sensor Networks

Video compression method such as H.264/AVC often causes huge computing complexity at the encoder that is generally implemented in various multimedia applications. In view of this an article on selective video encryption framework based upon Advanced Encryption Standard (AES) is suggested for prioritized frames of H.264/AVC to improve the multimedia security while maintaining the low complexity at the encoder. The experimental result demonstrates that the recommended technique contributes significant security to video streams while maintaining the original video compression efficiency and compression ratio. Moreover, the proposed scheme provides a good trade-off between encryption robustness, flexibility, and real-time processing.