Evaluation of different video encryption methods for a secure multimedia conferencing gateway

Chaos-Based Encryption for Digital Images and Videos

“…In addition, as mentioned above, scalability and perceptibility are generally realized via selective encryption. Some reviews of selective encryption methods and their performances can be found in [9,[45][46][47], among which [47] gave a partial list of some representative selective encryption methods and [9] analyzed the potential insecurity of different selective syntactic elements in MPEG-2 video stream against possible attacks. Although it seems that selective encryption is a good idea for the design of high-efficiency image/video encryption schemes, some essential defects of selective encryption have been pointed out, showing its incapability to provide a satisfactory balance between security and usability.…”

Chaos-Based Encryption for Digital Images and Videos

“…In addition, as mentioned above, scalability and perceptibility are generally realized via selective encryption. Some reviews of selective encryption methods and their performances can be found in [9,[45][46][47], among which [47] gave a partial list of some representative selective encryption methods and [9] analyzed the potential insecurity of different selective syntactic elements in MPEG-2 video stream against possible attacks. Although it seems that selective encryption is a good idea for the design of high-efficiency image/video encryption schemes, some essential defects of selective encryption have been pointed out, showing its incapability to provide a satisfactory balance between security and usability.…”

Protecting VoD the easier way

“…Kunkelmann et.al. present in [8] a variety of approaches to the partial encryption of the complete video stream, for use with a security gateway, and come to the conclusion that a mix of partial bit stream encryption and variable length code encryption is the most efficient for their application. They consider a partial encryption of 10% of the data appropriate for VoD applications, while full protection requires a major part of all data to be encrypted to prevent reconstruction.…”