def handleProofRequest(self, msg):
body, _ = msg
link = self._getLinkByTarget(getCryptonym(body.get(IDENTIFIER)))
proofRequest = body.get(PROOF_REQUEST_FIELD)
proofRequest = ProofRequest.from_str_dict(proofRequest)
proofReqExist = False
for request in link.proofRequests:
if request.name == proofRequest.name:
proofReqExist = True
break
self.notifyMsgListener(
' Proof request {} received from {}.\n'.format(
proofRequest.name, link.name))
if not proofReqExist:
link.proofRequests.append(proofRequest)
else:
self.notifyMsgListener(
' Proof request {} already exist.\n'.format(
proofRequest.name))
async def verifyProof(self, msg: Any):
body, (frm, _) = msg
link = self.verifyAndGetLink(msg)
if not link:
raise NotImplementedError
proof = body[PROOF_FIELD]
proofRequest = ProofRequest.from_str_dict(body[PROOF_REQUEST_FIELD])
nonce = getNonceForProof(body[NONCE])
proofName = proofRequest.name
proofs = {}
for key, p in proof['proofs'].items():
schema = await self.verifier.wallet.getSchema(
ID(schemaId=int(p['schema_seq_no'])))
pk = await self.verifier.wallet.getPublicKey(
ID(schemaKey=schema.getKey()))
proofs[key] = ProofInfo.from_str_dict(p, str(pk.N))
proof = FullProof(
proofs, AggregatedProof.from_str_dict(proof['aggregated_proof']),
RequestedProof.from_str_dict(proof['requested_proof']))
proofInput = ProofInput(
nonce=int(proofRequest.nonce),
revealedAttrs=proofRequest.verifiableAttributes,
predicates=proofRequest.predicates)
result = await self.verifier.verify(proofInput, proof)
self.logger.info('Proof "{}" accepted with nonce {}'.format(
proofName, nonce))
self.logger.info('Verifying proof "{}" from {}'.format(
proofName, link.name))
status = 'verified' if result else 'failed verification'
resp = {
TYPE:
PROOF_STATUS,
DATA:
' Your Proof {} {} was received and {}\n'.format(
proofRequest.name, proofRequest.version, status),
}
self.signAndSend(resp,
link.localIdentifier,
frm,
origReqId=body.get(f.REQ_ID.nm))
if result:
for uuid, attribute in proofInput.revealedAttrs.items():
# Log attributes that were verified
self.logger.info('verified {}: {}'.format(
attribute.name,
proof.requestedProof.revealed_attrs[uuid][1]))
self.logger.info(
'Verified that proof "{}" contains attributes '
'from claim(s) issued by: {}'.format(
proofName, ", ".join(
sorted([v.issuer_did
for k, v in proof.proofs.items()]))))
await self._postProofVerif(proofName, link, frm)
else:
self.logger.info(
'Verification failed for proof {} from {} '.format(
proofName, link.name))