Secrecy in Communications

One goal of this chapter is to explore dynamic secrets from a theoretic point of view. We use a Venn diagram to illustrate the difference between dynamic secrets and the traditional perception of a secret key. The Venn diagram analysis shows that the communication process itself can be a rich source of secrecy. This source was ignored in traditional key management. Dynamic secrets make use of this secrecy source and keep refilling secrecy to a dynamic key. As a result, dynamic keys are more resilient to cracking and stealing than traditional secret keys.