We need way to determine if A1A2 occured after handshake() called.
Ref: TcpServer.java in other project.
SaltServerSession serverSession = new SaltServerSession(host.getSigKeyPair(), clearChannel);
serverSession.setEncKeyPair(host.getCryptoLib().getRand());
serverSession.setA2(A2Factory.createForPoTv1());
serverSession.handshake();
// TODO B. we need to know here if A1A2 was used, then session is over
// and we should return
We need way to determine if A1A2 occured after handshake() called. Ref: TcpServer.java in other project.