An evaluation of current MPEG-1 ciphers and their applicability to streaming video

Copyright protection is one of the many aspects of implementing a commercially successful video streaming service and encryption of content is one means through which Copyright can be protected.MPEG-1 is one of the many video compression techniques used in streaming video and a number of MPEG-1 ciphers have been proposed in the past. These ciphers were primarily designed with the idea of public storage of MPEG-1 content. This paper considers the suitability of these ciphers in a streaming video context, concluding that no existing cipher is suitable for use in streaming MPEG-1 video and that a new cipher is required for this purpose.