The Stability Theory of Stream Ciphers

Secure message transmission is of extreme importance in today's information—based society. Stream encryption is a practically important means to this end. This monograph is devoted to a new aspect of stream ciphers, namely the stability theory of stream ciphers, with the purpose of developing bounds on complexity which can form part of the basis for a general theory of data security and of stabilizing stream—cipher systems. The approach adopted in this monograph is new. The topic is treated...