Pseudorandom bit Generators for Secure Broadcasting Systems
نویسنده
چکیده
Pseudorandom bit generators play an essential role in high-security audio/video scrambling and addressing systems which allow pay-TV programs to be viewed only by authorized subscribers. This paper evaluated cryptographic strength of the bit generators proposed by the European Broadcast Unit and the Japan's Ministry of Posts and Telecommunications and some security weakness was found on the generators. Subsequently we proposed a new sequence generator which is free from any known cryptologic weakness.
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