def test_can_get_issuer_by_public_key(valid_key_pair):
doc_did = make_identifier(valid_key_pair.public_bytes)
key_issuer = Issuer.build(doc_did, '#AnIssuer')
doc = RegisterDocumentBuilder() \
.add_public_key_obj(RegisterPublicKey(key_issuer.name, valid_key_pair.public_base58, revoked=False)) \
.build(key_issuer.did,
DIDType.TWIN,
proof='a proof, does not matter here',
revoked=False)
issuer = RegisterDocumentHelper.get_issuer_from_public_key(
doc, valid_key_pair.public_base58)
assert issuer == key_issuer
def get_issuer_by_public_key(doc: RegisterDocument, public_base58: str) -> Issuer:
"""
Get issuer matching the public key from a register document public keys.
:param doc: register document
:param public_base58: issuer public key base 58
:return: corresponding issuer
:raises:
IdentityRegisterIssuerNotFoundError: if the issuer matching the public key is not found
"""
issuer = RegisterDocumentHelper.get_issuer_from_public_key(doc, public_base58)
if not issuer:
raise IdentityRegisterIssuerNotFoundError(f'User secrets not allowed to update \'{doc.did}\'')
return issuer
