This ensures that payment sockets know if they are connecting to another payment socket. It also ensures that requests from other PSK2 senders will be rejected (because they won't know to strip off the prefix and thus will use the wrong shared secret)
This ensures that payment sockets know if they are connecting to another payment socket. It also ensures that requests from other PSK2 senders will be rejected (because they won't know to strip off the prefix and thus will use the wrong shared secret)
resolves https://github.com/emschwartz/ilp-protocol-paystream/issues/14