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Merge branch 'main' into issue-2530-abandoned-connection
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usingtechnology authored Dec 2, 2023
2 parents da36b97 + 98acd66 commit d27a842
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22 changes: 20 additions & 2 deletions AnonCredsWalletType.md
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Expand Up @@ -63,18 +63,36 @@ Everything should just work!!!

Theoretically ATH should work with anoncreds as well, by setting the wallet type (see https://github.com/hyperledger/aries-agent-test-harness#extra-backchannel-specific-parameters).


## Revocation (new in anoncreds)

The changes are significant. Notably:

- the old way was that from Indy you got the timestamp of the RevRegEntry used, accumulator and the "deltas" -- list of revoked and list of unrevoked credentials for a given range. I'm not exactly sure what was passed to the AnonCreds library code for building the presentation.
- In the new way, the AnonCreds library expects the identifier for the revregentry used (aka the timestamp), the accumulator, and the full state (0s and 1s) of the revocation status of all credentials in the registry.
- The conversion from delta to full state must be handled in the Indy resolver -- not in the "generic" ACA-Py code, since the other ledgers automagically provide the full state. In fact, we're likely to update Indy VDR to always provide the full state. The "common" (post resolver) code should get back from the resolver the full state.

The Tails file changes are minimal -- nothing about the file itself changed. What changed:

- the tails-file-server can be published to WITHOUT knowing the ID of the RevRegEntry, since that is not known when the tails file is generated/published. See: https://github.com/bcgov/indy-tails-server/pull/53 -- basically, by publishing based on the hash.
- The tails-file is not needed by the issuer after generation. It used to be needed for (I think) issuing and revoking credentials. Those are now done without the tails file. See: https://github.com/hyperledger/aries-cloudagent-python/pull/2302/files. That code is already in Main, so you should have it.


## Outstanding work

- unit tests (in the new anoncreds package)
- unit tests (in the new anoncreds package) (see https://github.com/hyperledger/aries-cloudagent-python/pull/2596/commits/229ffbba209aff0ea7def5bad6556d93057f3c2a)
- unit tests (review and possibly update unit tests for the credential and presentation integration)
- revocation support - migrate code from `anoncreds-rs` branch
- revocation support - migrate code from `anoncreds-rs` branch (in progress)
- revocation notifications (not sure if they're included in `anoncreds-rs` updates, haven'e tested them ...)
- revocation support - complete the revocation implementation (support for unhappy path scenarios)
- endorsement (not implemented with new anoncreds code)
- endpoints - don't load the schema/cred-def endpoints when wallet type is anoncreds (will require some BDD updates)
- testing - various scenarios like mediation, multitenancy etc.
- wallet upgrade (askar to askar-anoncreds)
- update V1.0 versions of the Credential and Presentation endpoints to use anoncreds
- any other anoncreds issues - https://github.com/hyperledger/aries-cloudagent-python/issues?q=is%3Aopen+is%3Aissue+label%3AAnonCreds


## Retiring old Indy and Askar (credx) Code

The main changes for the Credential and Presentation support are in the following two files:
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4 changes: 2 additions & 2 deletions aries_cloudagent/anoncreds/default/legacy_indy/registry.py
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Expand Up @@ -20,8 +20,8 @@
IndyLedgerRequestsExecutor,
)
from ....multitenant.base import BaseMultitenantManager
from ....revocation.models.issuer_cred_rev_record import IssuerCredRevRecord
from ....revocation.recover import generate_ledger_rrrecovery_txn
from ....revocation_anoncreds.models.issuer_cred_rev_record import IssuerCredRevRecord
from ....revocation_anoncreds.recover import generate_ledger_rrrecovery_txn
from ...base import (
AnonCredsObjectAlreadyExists,
AnonCredsObjectNotFound,
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4 changes: 2 additions & 2 deletions aries_cloudagent/anoncreds/routes.py
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Expand Up @@ -18,8 +18,8 @@
from ..messaging.models.openapi import OpenAPISchema
from ..messaging.valid import UUIDFour
from ..revocation.error import RevocationError, RevocationNotSupportedError
from ..revocation.manager import RevocationManager, RevocationManagerError
from ..revocation.routes import (
from ..revocation_anoncreds.manager import RevocationManager, RevocationManagerError
from ..revocation_anoncreds.routes import (
PublishRevocationsSchema,
RevRegIdMatchInfoSchema,
RevocationModuleResponseSchema,
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43 changes: 30 additions & 13 deletions aries_cloudagent/config/default_context.py
Original file line number Diff line number Diff line change
Expand Up @@ -88,12 +88,21 @@ async def bind_providers(self, context: InjectionContext):

context.injector.bind_provider(ProfileManager, ProfileManagerProvider())

context.injector.bind_provider(
BaseTailsServer,
ClassProvider(
"aries_cloudagent.tails.indy_tails_server.IndyTailsServer",
),
)
wallet_type = self.settings.get("wallet.type")
if wallet_type == "askar-anoncreds":
context.injector.bind_provider(
BaseTailsServer,
ClassProvider(
"aries_cloudagent.tails.anoncreds_tails_server.AnonCredsTailsServer",
),
)
else:
context.injector.bind_provider(
BaseTailsServer,
ClassProvider(
"aries_cloudagent.tails.indy_tails_server.IndyTailsServer",
),
)

# Register default pack format
context.injector.bind_provider(
Expand All @@ -120,6 +129,7 @@ async def load_plugins(self, context: InjectionContext):
plugin_registry = PluginRegistry(
blocklist=self.settings.get("blocked_plugins", [])
)
wallet_type = self.settings.get("wallet.type")
context.injector.bind_instance(PluginRegistry, plugin_registry)

# Register standard protocol plugins
Expand All @@ -133,16 +143,23 @@ async def load_plugins(self, context: InjectionContext):
)
plugin_registry.register_plugin("aries_cloudagent.messaging.schemas")
plugin_registry.register_plugin("aries_cloudagent.messaging.jsonld")
plugin_registry.register_plugin("aries_cloudagent.revocation")
plugin_registry.register_plugin("aries_cloudagent.resolver")
plugin_registry.register_plugin("aries_cloudagent.settings")
plugin_registry.register_plugin("aries_cloudagent.wallet")
plugin_registry.register_plugin("aries_cloudagent.anoncreds")
plugin_registry.register_plugin("aries_cloudagent.anoncreds.default.did_indy")
plugin_registry.register_plugin("aries_cloudagent.anoncreds.default.did_web")
plugin_registry.register_plugin(
"aries_cloudagent.anoncreds.default.legacy_indy"
)
if wallet_type == "askar-anoncreds":
plugin_registry.register_plugin("aries_cloudagent.anoncreds")
plugin_registry.register_plugin(
"aries_cloudagent.anoncreds.default.did_indy"
)
plugin_registry.register_plugin(
"aries_cloudagent.anoncreds.default.did_web"
)
plugin_registry.register_plugin(
"aries_cloudagent.anoncreds.default.legacy_indy"
)
plugin_registry.register_plugin("aries_cloudagent.revocation_anoncreds")
else:
plugin_registry.register_plugin("aries_cloudagent.revocation")

if context.settings.get("multitenant.admin_enabled"):
plugin_registry.register_plugin("aries_cloudagent.multitenant.admin")
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,7 @@
)
from ......messaging.decorators.attach_decorator import AttachDecorator
from ......multitenant.base import BaseMultitenantManager
from ......revocation.models.issuer_cred_rev_record import IssuerCredRevRecord
from ......revocation_anoncreds.models.issuer_cred_rev_record import IssuerCredRevRecord
from ......storage.base import BaseStorage
from ...message_types import (
ATTACHMENT_FORMAT,
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