keymaster: fix authorization set serialization
Invalid and unknown tags were treated as zero size but they where still
counted as entry. This lead to invalid tags being persisted. When
Serialized blobs were used to cache key characteristics, these invalid
tags were send to clients of keystore. However, the serialization cannot
cope with invalid tags.
Bug: 119414176
Test: Successfully used the Skype app which triggered the problem
Change-Id: Ia46ac4a16395db3d10f93d3722eda69d523db478
(cherry picked from commit 93959a5e425d2666542e9618529816a74a0ae159)
1 file changed
