Eran Messeri cb238ffdad Test validity of device-unique attestation chain
Test the validity of the chain produced when device-unique attestation
is requested.

When the caller requests that the key attestation be signed using the
device-unique attestation key, the chain will look different than
a chain signed by the batch key (common case):
(1) The chain is exactly of length 2.
(2) The root is self-signed and is unique to the device.

Test that the chain is correctly signed in this change. The root is not
currently correctly self-signed, so don't test (2) yet.

Bug: 189425310
Bug: 187803288
Test: atest VtsHalKeymasterV4_1TargetTest:PerInstance/DeviceUniqueAttestationTest
Change-Id: I91578eb2b7588685cc86c467423e9394c3f3c262
2021-06-08 11:42:54 +01:00
2021-06-02 16:01:53 -07:00
2021-06-04 18:38:38 +00:00
2021-03-18 23:28:58 +00:00
2019-12-13 14:24:23 -08:00
2021-06-02 16:01:53 -07:00
2016-08-30 11:28:36 -07:00
2020-12-16 18:09:12 +00:00
2021-01-21 15:06:51 +09:00
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