I have a problem with sending signed AS2 messages to a partner. Their software only accepts signed messages which includes the public key with which the signature can be verified. I cannot find anything about this in the EDIINT documentation, but I assume from the problem of this partner that the public key is not sent with the AS2 message.
Is this asumption right, and is there a way to send the public key with the digitally signed message?
I checked the S/MIME specification, and this specification provides in sending the key with the message.