TLSPolicy for DTLS. We require DTLS v1.2 and an AEAD mode
NSA Suite B 128-bit security level (see @rfc 6460)
TLSPolicy Base Class Inherit and overload as desired to suit local policy concerns
Botan is released under the Simplified BSD License (see LICENSE.md)
(C) 2004-2006,2013 Jack Lloyd (C) 2014-2015 Etienne Cimon
Hooks for application level policies on TLS connections