Add an implementation for the AuthGraph key exchange HAL, to allow
testing and policy compliance.
In real use, IAuthGraphKeyExchange instances are expected to be
retrieved from some other HAL, allowing the AuthGraph instance to be
specifically correlated with the component that uses it.
Bug: 284470121
Bug: 291228560
Test: hal_implementation_test
Test: VtsAidlAuthGraphSessionTest
Change-Id: Ib064292d60bead663af7721fd1406f2a9b5d8ecd
Introduce the AIDL methods for key exchange and the CDDLs for
the relevant input/output types that are CBOR encoded.
Use a standard comment format in CDDL files to indicate where additional
structure definitions can be found, in the hope that one day tooling
will be available to automatically check schema syntax.
Add authgraph to compatibility matrix
This CL merges the CLs: aosp/2750484, aosp/2750485, aosp/2750486 by
drysdale@google.com
Co-authored-by: David Drysdale <drysdale@google.com>
Bug: 284470121
Test: validate schemas with https://cddl.anweiss.tech/
Test: VtsAidlAuthGraphSessionTest (with nonsecure default impl)
Change-Id: I2793666ede028f8abe91569587c09dcac21c67e0
