async def create_proof_request(conn):
# 1. Init entities
public_repo = PublicRepoInMemory()
attr_repo = AttributeRepoInMemory()
issuer = Issuer(IssuerWalletInMemory('issuer1', public_repo), attr_repo)
# 2. Create a Schema
schema = await issuer.genSchema('GVT', '1.0', GVT.attribNames())
schema_id = ID(schema.getKey())
# 3. Create keys for the Schema
global global_dict
await issuer.wallet.submitPublicKeys(schema_id, global_dict['public_key'])
# 4. set attributes for user1
prover_id = 'BzfFCYk'
attributes = GVT.attribs(name='Alex', age=28, height=175, sex='male')
attr_repo.addAttributes(schema.getKey(), prover_id, attributes)
verifier = Verifier(WalletInMemory('verifier1', public_repo))
proof_request = ProofRequest(
name='Test_proof', version='1.0',
nonce=verifier.generateNonce(),
verifiableAttributes={
'attr_uuid': AttributeInfo('name', schema.seqId)},
predicates={'predicate_uuid': PredicateGE('age', 18)})
global_dict['verifier'] = verifier
global_dict['proof_request'] = proof_request
conn.send(json.dumps(proof_request.to_str_dict()).encode())
async def sendProofAsync(self, link: Link, proofRequest: ProofRequest):
# TODO _F_ this nonce should be from the Proof Request, not from an
# invitation
# TODO rename presentProof to buildProof or generateProof
proof = await self.prover.presentProof(proofRequest)
proof.requestedProof.self_attested_attrs.update(proofRequest.selfAttestedAttrs)
op = {
TYPE: PROOF,
NONCE: link.invitationNonce,
PROOF_FIELD: proof.to_str_dict(),
PROOF_REQUEST_FIELD: proofRequest.to_str_dict()
}
self.signAndSendToLink(msg=op, linkName=link.name)
async def sendProofAsync(self, link: Connection,
proofRequest: ProofRequest):
# TODO _F_ this nonce should be from the Proof Request, not from an
# invitation
# TODO rename presentProof to buildProof or generateProof
proof = await self.prover.presentProof(proofRequest)
proof.requestedProof.self_attested_attrs.update(
proofRequest.selfAttestedAttrs)
op = {
TYPE: PROOF,
NONCE: link.request_nonce,
PROOF_FIELD: proof.to_str_dict(),
PROOF_REQUEST_FIELD: proofRequest.to_str_dict()
}
self.signAndSendToLink(msg=op, linkName=link.name)
def sendProofReq(self, link: Link, proofReqSchemaKey):
if self._proofRequestsSchema and (
proofReqSchemaKey in self._proofRequestsSchema):
proofRequest = self._proofRequestsSchema[proofReqSchemaKey]
proofRequest = ProofRequest(
proofRequest[NAME],
proofRequest[VERSION],
getNonceForProof(link.invitationNonce),
proofRequest[ATTRIBUTES],
proofRequest[VERIFIABLE_ATTRIBUTES] if VERIFIABLE_ATTRIBUTES in proofRequest else [],
proofRequest[PREDICATES] if PREDICATES in proofRequest else []
)
op = {
TYPE: PROOF_REQUEST,
PROOF_REQUEST_FIELD: proofRequest.to_str_dict()
}
self.signAndSendToLink(msg=op, linkName=link.name)
else:
return ERR_NO_PROOF_REQUEST_SCHEMA_FOUND