Factoring GenerateRandom out of the KeymasterContext
GenerateRandom is never called by AndroidKeymaster and is, therefore,
not requiered to be part of the KeymasterContext interface.
This patch moves Generate Random out of KeymasterContext and introduces
a new abstract interface GenerateRandom. It also provides a default
openssl based impelemtation, SoftwareRandomSource.
As of this patch GenerateRandom is still called by OperationTable
which is part of the AndroidKeymaster core logic. This is why
KeymasterContext still implements the new RandomSource interface
unconditionally. This will change in a subsequent commit.
Test: VtsHalKeymasterV3_0TargetTest
Bug: 67358942
Change-Id: Ib16aeb80bf777d7b08d06deadae8a32de280f8ba
15 files changed