tree 908ad54910b12c74ed67ae4bb29ab06289ea1935
parent 4db76eb5946ceecf288a352f733d641d3936bf34
author Alan Stokes <alanstokes@google.com> 1683285558 +0100
committer Alan Stokes <alanstokes@google.com> 1683297227 +0100

Add BCC truncating

"Truncate" the received BCC by removing the entire chain we receive
and peforming a non-DICE derivation on the CDIs. This is to ensure
that we don't provide access to a UDS-rooted BCC, since that might be
what we received. This needs to be removed once we have a reliable way
to distinguish a VM BCC from a non-VM one.

Fixed a test whose assumption is no longer true.

Bug: 266172411
Test: atest ComposHostTestCases (this validates the CompOS BCC)
Test: atest MicrodroidTests
Change-Id: I288f4ed8e108c81ab46f8ce2c94a9336855422c8