True Random Generators and Hidden Transfer of Keys

Most industrial automatic systems are remotely controlled, so the problem of protecting control information transmitted through an open channel is relevant. The use of cryptographic systems for security involves the ability to fast exchange system keys. In this paper, a new family of the true random key generators is proposed. The source of entropy for such random devices is the phenomenon of jittering in electronic circuits. Generators are built in the form of cascade schemes based on adders. We give the architectural solution for the synthesis of the generator that based on transition dynamics of such an appliance. The procedure for the hidden transfer of keys using those generators is discussed.