Commit Graph

13 Commits

Author SHA1 Message Date
Seth Moore
1bf823ce75 Revert^2 "Add remote key provisioning to the IC HAL"
be32113307

Change-Id: I55ddbddd0bc317f1f077a63b0275c4d55fd9c76f
2022-01-25 23:04:37 +00:00
Seth Moore
be32113307 Revert "Add remote key provisioning to the IC HAL"
Revert "Add dependency on keymint cpp lib"

Revert "Allow default identity service to call keymint"

Revert submission 1956689-add rkp to identity-default

Reason for revert: Broke git-master. Will resubmit later.
Reverted Changes:
I96dcf3027:Add remote key provisioning to the IC HAL
Id686ac33a:Add dependency on keymint cpp lib
Ib368a2a00:Log to logd in the default identity service
I7d2906de0:Refactor IC support for RKP
Iae0f14f1c:Fix formatting of identity credential aidl
I01d086a4b:Allow default identity service to call keymint

Change-Id: I76a898c04090c5befe5fb5a5d07ec2e397fdd8b3
2022-01-25 22:44:24 +00:00
Seth Moore
b5b69f0e00 Add remote key provisioning to the IC HAL
The IIdentityCredentialStore can now advertise the correct
IRemotelyProvisionedComponent that is used for getting remotely
provisioned attestation keys.

IWritableIdentityCredential has a new method so it can accept remotely
provisioned keys.

Update the VTS tests to check the new RKP functionality.

Support RKP in the default identity cred service

Test: VtsHalIdentityTargetTest
Bug: 194696876
Change-Id: I96dcf3027e0f21790c35900ddf8cc0953bd3b1ca
2022-01-24 16:19:21 -08:00
Max Bires
a3c7f4c998 Transitioning identity to external_libcppbor
This change removes hardware/interfaces/identity's dependency on its own
libcppbor copy. The copy can not be fully removed until various vendor
dependencies are cleaned up.

Superficial changes are made to the VTS tests to match the slightly
altered namespace on some of the functions.

This migration is a prerequisite for getting the
IRemotelyProvisionedComponent functionality into system/keymaster.
Without migrating to the same library, the build system runs into issues
since there are "two" libcppbor libraries with conflicting namespaces
otherwise.

Bug: 182445123
Test: atest VtsHalIdentityTargetTest
Change-Id: I854ffa31c4adb5a3d1df06539fe66075ccc4625d
2021-04-09 08:57:01 -07:00
David Zeuthen
49f2d2558a Identity Credential changes for Android 12
- Add IIdentityCredential.deleteCredentialWithChallenge()
- Deprecate IIdentityCredential.deleteCredential()
- Add IIdentityCredential.proveOwership()
- Add IIdentityCredential.updateCredential()
- Add ProofOfBinding CBOR to AuthenticationKey X.509 certificate
- Document which API versions new methods/features appeared in.
- Mention need to declare android.hardware.identity_credential system
  feature (w/ feature version number) and do this for the default
  implementation.

Bug: 170146643
Test: atest VtsHalIdentityTargetTest
Change-Id: Ib47c7caa5f3d6fff6919f019eee44a735dba9cf8
2021-01-23 13:35:57 -05:00
David Zeuthen
630de2a93e Identity Credential: Switch default implementation to use libeic.
Introduce platform-neutral C library ("libeic") which can be used to
implement an Identity Credential Trusted Application/Applet in Secure
Hardware.

The libeic library is intentionally low-level, has no dependencies
(not even libc), uses very little run-time memory (less than 500 bytes
during a provisioning or presentation session), and doesn't
dynamically allocate any memory. Crypto routines are provided by the
library user through a simple crypto interface defined in EicOps.

Also provide an Android-side HAL implementation designed to
communicate with libeic running in Secure Hardware outside
Android. Abstract out communications between HAL and TA in a couple of
SecureHardwareProxy* classes which mimic libeic 1:1.

The default implementation of the HAL is a combination of the
aforementioned HAL using libeic in-process backed by BoringSSL for the
crypto bits.

Test: atest VtsHalIdentityTargetTest
Test: atest android.security.identity.cts
Bug: 170146643
Change-Id: I3bf43fa7fd9362f94023052591801f2094a04607
2021-01-05 18:30:59 -05:00
David Zeuthen
34abaaefcb identity: Fix attestation and documentation problems.
- The docs said that IdentityCredential.createEphemeralKey() returned
  data encoded PKCS#8 which is wrong. It's supposed to be in DER format
  which is also what the VTS tests and credstore expects.

- Clarify that createEphemeralKeyPair(), setReaderEphemeralPublicKey(),
  and createAuthChallenge() are all optional.

- Avoid passing an invalid profile ID in the IdentityCredentialTests.
  verifyOneProfileAndEntryPass test.

- Update requirements for which tags must be present in the attestation
  for CredentialKey as well as the requirements on expiration date and
  the issuer name.  Update default implementation to satisfy these
  requirements. Update VTS tests to carefully verify these requrements
  are met.

- Clarify requirements for X.509 cert for AuthenticationKey. Add VTS
  test to verify.

- Mandate that TAG_IDENTITY_CREDENTIAL_KEY must not be set for test
  credentials. Add VTS test to verify this.

- Make default implementation pretend to be implemented in a trusted
  environment and streamline VTS tests to not special-case for the
  default implementation.

- Switch to using the attestation extension parser from the KM 4.1
  support library instead of the one from system/keymaster. The latter
  one did not support the latest attestation extension and thus would
  fail for pretty much anything that wasn't the default HAL impl.

- Fix a couple of bugs in keymaster::V4_1::parse_attestation_record():
  - Report root_of_trust.security_level
  - Add support for Tag::IDENTITY_CREDENTIAL_KEY

- Fix how EMacKey is calculated.

- Add test vectors to verify how EMacKey and DeviceMac is calculated.

Test: atest VtsHalIdentityTargetTest
Test: atest android.security.identity.cts
Bug: 171745570
Change-Id: I2f8bd772de078556733f769cec2021918d1d7de6
2020-11-17 13:44:00 -05:00
Dan Shi
ba4d532fee Suppress gtest error for tests without any instance
Bug: 162052785
Test: m -j vts
Change-Id: I8c1a48e6fbd7c8161137902b5332911fa0d7b8b3
2020-07-28 15:12:32 -07:00
David Zeuthen
ef7395127f Update Identity Credential VTS tests.
These updates are based on input/experiences implementing this
HAL. There are no API changes.

 - Specify that the validity for credentialKey certificate shall be
   from current time and expire at the same time as the attestation
   batch certificate.

 - Require challenge passed to getAttestationCertificate() is
   non-empty.

 - Fix bug in VTS tests where the startPersonlization() result was not
   checked.

 - Remove verifyStartPersonalizationZero test since it cannot be
   completed.

 - Ensure secureUserId is non-zero if user authentication is needed.

 - Specify format for signingKeyBlob in generateSigningKeyPair() same
   way we do for credentialData in finishAddingEntries().

 - Modify EndToEndTest to decrypt/unpack credentialData to obtain
   credentialPrivKey and storageKey and do cross-checks on these.

 - Modify EndToEndTest to decrypt/unpack signingKeyBlob to obtain
   signingKeyPriv and check it matches the public key in the returned
   certificate.

 - Add new VTS tests for user and reader authentication.

 - Relax unnecessary requirements about SessionTranscript structure -
   just require it has X and Y of the ephemeral key created earlier.

 - Allow calls in VTS tests to v2 HAL to fail - this should allow
   these VTS tests to pass on a compliant v1 HAL.

Bug: 156911917
Bug: 158107945
Test: atest VtsHalIdentityTargetTest
Test: atest android.security.identity.cts
Change-Id: I11b79dbd57b1830609c70301fea9c99f9e5080cb
2020-06-04 16:46:54 -04:00
Selene Huang
cab019aae5 Add attestation certificate parsing and validate for IC vts.
- Added attestation certificate parsing support.
- Added various certificate conversion support.
- Added certification verification support.
- Added tests for the attestation certificate verification.
- Updated the old tests to use the new attestation validation
  implementation.
- Updated GenerateReaderCertificate to use pointer reader private key.

Bug: 154909726

Test: VtsHalIdentityTargetTest
Test: atest android.security.identity.cts

Change-Id: Ibe770e6eaf0b0018d60876926d824204e4eaf732
2020-04-30 21:33:48 -07:00
David Zeuthen
28edb10334 Identity Credential: Pass additional information to HAL.
Without this extra information passed upfront it's not practical to
implement a HAL which incrementally builds up cryptographically
authenticated data.

Two new methods are added to facilitate this and the HAL version
number is bumped to 2.

Bug: 154631410
Test: atest VtsHalIdentityTargetTest
Test: atest android.security.identity.cts
Change-Id: Iff63dfa2c4485c8768e06e7f6d70e940cfc8f68e
2020-04-29 14:27:18 -04:00
David Zeuthen
a0796e98c2 Identity Credential: Restrict AccessControlProfile identifiers to 32.
In order to implement Identity Credential on resource-restricted
secure hardware, we need to limit the number of possible
AccessControlProfile in a credential. A limit of 32 means that such
hardware only need to devote four bytes of RAM for a bitmask with
information about which profiles are authorized.

Document this, add new VTS test, and update the default
implementation.

Bug: 155100967
Test: atest android.security.identity.cts
Test: atest VtsHalIdentityTargetTest
Change-Id: Ia4f2ee0013b330561df744e0595f298a0d156122
2020-04-27 15:28:27 -04:00
Selene Huang
92b61d650f Fix IC vts bugs and add tests for IC IWritableIdentityCredential.aidl interface.
Fixed following bugs in WritableIdentityCredential.cpp
  - Do not allow startPersonalization to be called more than once per
  aidl.
  - Do not preceed with beginAddEntry if addAccessControlProfile and
  startPersonalization profile count mismatch.
  - Verify access control profile ids are unique.
  - Do not let empty name space to mess up beginAddEntry.
  - Do not allow beginAddEntry to add entries interleaving namespace
    groupings. Enforce all entries must be added in namespace "groups"
    per aidl.
  - Fix counting error that allowed one entries to be added per name
    space than startPersonalization limit.
  - Do not approve finishAddingEntries if there are more profiles or
    entries to be added than startPersonalization set accounting.
  - Add testing utilities library for identity credential.
  - Refactored end to end tests.

Test: atest VtsHalIdentityTargetTest
Test: atest android.security.identity.cts

Change-Id: I51902681776c6230e49589fc75a8145e79d7d1a6
2020-04-24 00:04:07 -07:00