3271d0452a4f26a6ff4fff42ed2ce5fb8b9ef07b - platform/frameworks/base

commit	3271d0452a4f26a6ff4fff42ed2ce5fb8b9ef07b	[log] [tgz]
author	Victor Hsieh <victorhsieh@google.com>	Tue Oct 24 15:46:32 2017 -0700
committer	Victor Hsieh <victorhsieh@google.com>	Thu Nov 02 15:35:03 2017 -0700
tree	a11035326b01b82816639345f4b558c1c85b2fce
parent	2dfd5c375ed09ed13dfd5989c196504143c22592 [diff]

Add ApkVerityBuilder to contruct the verity tree

Test: Locally add some code in PackageManagerService to generate the
      verity tree.  Root hash and the tree is consistent with the output
      of apksig.
Test: With local mod, with apk size of 400/100/20/5 MB, verification
      time is about the same for the existing algorithm before and after
      the refactoring.
Test: With local mod, with a 400 MB apk, verification time of the new
      algorithm is slower (2s) than the 1MB-based algorithm (600ms).
Bug: 30972906

Change-Id: Ie429cf9b80884e56a8e0882e1c125c8a3f8feab4

core/java/android/util/apk/ApkSignatureSchemeV2Verifier.java[diff]
core/java/android/util/apk/ApkVerityBuilder.java[Added - diff]
core/java/android/util/apk/ByteBufferDataSource.java[Added - diff]
core/java/android/util/apk/ByteBufferFactory.java[Added - diff]
core/java/android/util/apk/DataDigester.java[Added - diff]
core/java/android/util/apk/DataSource.java[Added - diff]
core/java/android/util/apk/MemoryMappedFileDataSource.java[Added - diff]
core/java/android/util/apk/SignatureInfo.java[Added - diff]

8 files changed

tree: a11035326b01b82816639345f4b558c1c85b2fce