0ccde5871c
* transport encryption (WIP - using fixed key, parsing/serialization works, SMP tests fail) * transport encryption * transport encryption: separate keys to receive and to send, counter-based IVs * docs: update transport encryption and handshake * transport encryption handshake (TODO: validate key hash, welcome block, move keys to system environment) * change KeyHash type to newtype of Digest SHA256 * transport encryption: validate public key hash * send and receive welcome block with SMP version * refactor: parsing SMPServer * remove unused function * verify that client version is compatible with server version (major version is not smaller) * update (fix) SMP server tests