tree 69af6ee4fd661f6386eb7f30ed4d93b79e008187
parent 6d2268a57603e1c60329b93fb853ac2c134cb932
author Alex Klyubin <klyubin@google.com> 1435086387 -0700
committer Alex Klyubin <klyubin@google.com> 1435086387 -0700

Keymaster key validity dates are optional.

This CL makes Android Keystore framework code add
KM_TAG_ACTIVE_DATETIME, KM_TAG_ORIGINATION_EXPIRE_DATETIME, and
KM_TAG_USAGE_EXPIRE_DATETIME tags to the authorizations set only
if the corresponding time instants were specified through the
framework-level API. This is fine because these tags are optional as
it turns out.

Bug: 18088752
Change-Id: I6a5ae4cadb441e61576231815e6bec6e9248bc72