async def get_box_ids_issued(self) -> str:
"""
Return json object on lists of all unique box identifiers (schema identifiers,
credential definition identifiers, and revocation registry identifiers) for
all credential definitions and credentials issued; e.g.,
::
{
"schema_id": [
"R17v42T4pk...:2:tombstone:1.2",
...
],
"cred_def_id": [
"R17v42T4pk...:3:CL:19:tag",
...
]
"rev_reg_id": [
"R17v42T4pk...:4:R17v42T4pk...:3:CL:19:tag:CL_ACCUM:0",
"R17v42T4pk...:4:R17v42T4pk...:3:CL:19:tag:CL_ACCUM:1",
...
]
}
An issuer must issue a credential definition to include its schema identifier
in the returned values; the schema identifier in isolation belongs properly
to an Origin, not necessarily to an Issuer.
The operation may be useful for a Verifier anchor going off-line to seed its
cache before doing so.
:return: tuple of sets for schema ids, cred def ids, rev reg ids
"""
LOGGER.debug('Issuer.get_box_ids_issued >>>')
cd_ids = [d for d in listdir(self._dir_tails)
if isdir(join(self._dir_tails, d)) and ok_cred_def_id(d, self.did)]
s_ids = []
for cd_id in cd_ids:
try:
s_ids.append(json.loads(await self.get_schema(cred_def_id2seq_no(cd_id)))['id'])
except AbsentSchema:
LOGGER.error(
'Issuer %s has issued cred def %s but no corresponding schema on ledger',
self.wallet.name,
cd_id)
rr_ids = [basename(link) for link in Tails.links(self._dir_tails, self.did)]
rv = json.dumps({
'schema_id': s_ids,
'cred_def_id': cd_ids,
'rev_reg_id': rr_ids
})
LOGGER.debug('Issuer.get_box_ids_issued <<< %s', rv)
return rv
async def build_proof_req_json(self, cd_id2spec: dict) -> str:
"""
Build and return indy-sdk proof request for input attributes and non-revocation intervals by cred def id.
:param cd_id2spec: dict mapping cred def ids to:
- (optionally) 'attrs': lists of names of attributes of interest (omit for all, empty list or None for none)
- (optionally) '>=': (pred) inclusive int lower-bounds of interest (omit, empty list, or None for none)
- (optionally) '>': (pred) exclusive int lower-bounds of interest (omit, empty list, or None for none)
- (optionally) '<=': (pred) inclusive int upper-bounds of interest (omit, empty list, or None for none)
- (optionally) '<': (pred) exclusive int upper-bounds of interest (omit, empty list, or None for none)
- (optionally), 'interval': either
- (2-tuple) pair of epoch second counts marking 'from' and 'to' timestamps, or
- | single epoch second count to set 'from' and 'to' the same; default
| (now, now) for cred defs supporting revocation or None otherwise; e.g.,
::
{
'Vx4E82R17q...:3:CL:16:tag': {
'attrs': [ # request attrs 'name' and 'favouriteDrink' from this cred def's schema
'name',
'favouriteDrink'
],
'>=': { # request predicate score>=80 from this cred def
'score': 80
}
'<=': { # request ranking <=10 from this cred def
'ranking': 10
}
'interval': 1528116008 # same instant for all attrs and preds of corresponding schema
},
'R17v42T4pk...:3:CL:19:tag': None, # request all attrs, no preds, default intervals on all attrs
'e3vc5K168n...:3:CL:23:tag': {}, # request all attrs, no preds, default intervals on all attrs
'Z9ccax812j...:3:CL:27:tag': { # request all attrs, no preds, this interval on all attrs
'interval': (1528112408, 1528116008)
},
'9cHbp54C8n...:3:CL:37:tag': { # request no attrs and some predicates; specify interval
'attrs': [], # or equivalently, 'attrs': None
'>=': {
'employees': '50' # nicety: implementation converts to int for caller
},
'>=': {
'revenue': '10000000' # nicety: implementation converts to int for caller
'ebidta': 0
}
'interval': (1528029608, 1528116008)
},
'6caBcmLi33...:3:CL:41:tag': { # all attrs, one pred, default intervals to now on attrs & pred
'>': {
'regEpoch': 1514782800
}
},
...
}
:return: indy-sdk proof request json
"""
LOGGER.debug('Verifier.build_proof_req_json >>> cd_id2spec: %s',
cd_id2spec)
cd_id2schema = {}
now = int(time())
rv = {
'nonce': str(int(time())),
'name': 'proof_req',
'version': '0.0',
'requested_attributes': {},
'requested_predicates': {}
}
for cd_id in cd_id2spec:
if not ok_cred_def_id(cd_id):
LOGGER.debug(
'Verifier.build_proof_req_json <!< Bad cred def id %s',
cd_id)
raise BadIdentifier('Bad cred def id {}'.format(cd_id))
interval = None
cred_def = json.loads(await self.get_cred_def(cd_id))
seq_no = cred_def_id2seq_no(cd_id)
cd_id2schema[cd_id] = json.loads(await self.get_schema(seq_no))
if 'revocation' in cred_def['value']:
fro_to = cd_id2spec[cd_id].get(
'interval',
(now, now)) if cd_id2spec[cd_id] else (now, now)
interval = {
'from': fro_to if isinstance(fro_to, int) else min(fro_to),
'to': fro_to if isinstance(fro_to, int) else max(fro_to)
}
for attr in (cd_id2spec[cd_id].get(
'attrs', cd_id2schema[cd_id]['attrNames']) or []
if cd_id2spec[cd_id] else
cd_id2schema[cd_id]['attrNames']):
attr_uuid = '{}_{}_uuid'.format(seq_no, canon(attr))
rv['requested_attributes'][attr_uuid] = {
'name': attr,
'restrictions': [{
'cred_def_id': cd_id
}]
}
if interval:
rv['requested_attributes'][attr_uuid][
'non_revoked'] = interval
for pred in Predicate:
for attr in (cd_id2spec[cd_id].get(pred.value.math, {}) or {}
if cd_id2spec[cd_id] else {}):
pred_uuid = '{}_{}_{}_uuid'.format(seq_no, canon(attr),
pred.value.fortran)
try:
rv['requested_predicates'][pred_uuid] = {
'name':
attr,
'p_type':
pred.value.math,
'p_value':
Predicate.to_int(
cd_id2spec[cd_id][pred.value.math][attr]),
'restrictions': [{
'cred_def_id': cd_id
}]
}
except ValueError:
LOGGER.info(
'cannot build %s predicate on non-int bound %s for %s',
pred.value.fortran,
cd_id2spec[cd_id][pred.value.math][attr], attr)
continue # int conversion failed - reject candidate
if interval:
rv['requested_predicates'][pred_uuid][
'non_revoked'] = interval
LOGGER.debug('Verifier.build_proof_req_json <<< %s', json.dumps(rv))
return json.dumps(rv)