commit 602753593ee0bf881edd9aa4fbad01d23dd16158
author David Zeuthen <zeuthen@google.com> Mon Apr 27 15:24:55 2020 -0400
committer David Zeuthen <zeuthen@google.com> Mon Apr 27 16:03:36 2020 -0400
tree cb65aad892341fbd3eadbd23c258ee3e3b890bb4
parent d2115c9876d2e6c3abca6e38ca77044d3b888d1d

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
Merged-In: Ia4f2ee0013b330561df744e0595f298a0d156122
Change-Id: I2dd672447bedfa9407bf1044e6261af26fd137f9