Security Agility Solution Independent of the Underlaying Protocol Architecture

Cryptographic protocols are constantly exposed to new at- tack methods. When some cryptographic protocol gets exposed there is a need to replace it. This is hard because most cryptographic pro- tocols are hard coded in applications. Applications should implement a way of negotiating cryptographic protocols used. In that way old and vulnerable protocols could be easily replaced with new ones. The agile cryptographic negotiation protocol (ACNP) proposed in this paper repre- sents a layer-agnostic, robust solution that can be deployed for providing cryptographic agility and greatly improve security. It provides minimal communication overhead and represents a universal and secure solution independent of the communication layer and application that uses it.