async def on_create_party_registration(payload, future):
if payload['fingerprint'] != ven_fingerprint:
raise errors.FingerprintMismatch(
"The fingerprint of your TLS connection does not match the expected fingerprint. Your VEN is not allowed to register."
)
else:
future.set_result(True)
return 'ven1234', 'reg5678'
def validate_xml_signature(xml_tree, cert_fingerprint=None):
"""
Validate the XMLDSIG signature and the ReplayProtect element.
"""
cert = utils.extract_pem_cert(xml_tree)
if cert_fingerprint:
fingerprint = utils.certificate_fingerprint(cert)
if fingerprint != cert_fingerprint:
raise errors.FingerprintMismatch("The certificate fingerprint was incorrect. "
f"Expected: {cert_fingerprint};"
f"Received: {fingerprint}")
VERIFIER.verify(xml_tree, x509_cert=utils.ensure_bytes(cert), expect_references=2)
_verify_replay_protect(xml_tree)