Files
android/libwvdrmengine
John W. Bruce d742daf9c7 Validate decryption with entitled keys in OEC tests
(This change is merged from http://go/wvgerrit/124825)

The OEMCrypto tests have tests that verify that entitled keys can be
loaded but not that they can be successfully used for decrypt. This
patch adds a decrypt portion to the existing tests.

As part of this, the existing Session::EncryptCTR() method and portions
of Session::TestDecryptCTR() are lifted to be static functions so they
can be shared across unrelated classes in oec_session_util.cpp.
EncryptCTR() had no dependence on its enclosing class and is unchanged
other than being moved outside the class.

To reduce ambiguity with the new decrypt verification, this patch also
renames EntitledMessage::VerifyEntitlementTestKeys() to the
more-specific EntitledMessage::VerifyKCBs(). Its behavior is unchanged.

Bug: 186782279
Test: x86-64 platform
Test: opk_ta platform
Test: build_and_run_all_unit_tests
Change-Id: I15156882907b0987215087aaf43b4666fedc171a
2021-05-11 12:52:24 -07:00
..
2018-11-22 00:33:30 +00:00

This is the source code for the Widevine Content Decryption Module (CDM) for the
Android OS.  It provides the libwvdrmengine plugin for DRM.

Partners who are integrating a device should be familiar with the documents in
the docs directory.

This source code is NOT open source, and is not part of AOSP.  However, it is
released to partners external to Google after official Android releases.  For
this reason, partners should look for bug fixes and software updates on the
widevine branches:

+------------------------------+------------------------------+
|Android Version               |Branch                        |
+------------------------------+------------------------------+
|Android L                     |lmp-mr1-widevine-release      |
+------------------------------+------------------------------+
|Android M MR1                 |mnc-mr1-widevine-release      |
+------------------------------+------------------------------+
|Android N MR2                 |nyc-mr2-widevine-release      |
+------------------------------+------------------------------+
|Android OC                    |oc-widevine-release           |
+------------------------------+------------------------------+
|Android OC MR1                |oc-mr1-widevine-release       |
+------------------------------+------------------------------+
|Android Pi                    |pi-widevine-release           |
+------------------------------+------------------------------+