android

Files

John W. Bruce ff7f8c00bf Fix IV handling for pattern encryption.

(This is a merge of modmaker@'s change from the Widevine repo,
http://go/wvgerrit/48880)

When using pattern encryption, WVCryptoPlugin needs to increment the
IV after each subsample.  It should increment it based on the number
of actually encrypted samples (i.e. ignore clear data caused by
subsamples or pattern encryption).

In the common encryption spec, section 9.6.1 states:

  If the last Block pattern in a Subsample is incomplete, the partial
  pattern SHALL be followed until truncated by the BytesOfProtectedData
  size and any partial crypt_byte_block SHALL remain unencrypted.

This fixes the counting of encrypted blocks to account for partial
patterns.  This also makes it more efficient by removing the loop.

Bug: 111001481
Test: build_and_run_all_unit_tests
Test: Widevine GTS Tests
Change-Id: Ibd2bf10f64461b9bce10ef07453096fe4a4f6376

2019-01-16 16:34:52 -08:00

cdm

Add some platform abstractions.

2019-01-16 11:06:55 -08:00

docs

Update OEMCrypto documentation to 15.1

2019-01-07 09:53:07 -08:00

include

Add decrypt hash support

2019-01-07 10:14:25 -08:00

include_hidl

Add additional error conditions to MediaDrm

2019-01-10 15:17:48 -08:00

level3

Update property retrival method

2019-01-15 00:24:52 -08:00

mediacrypto

Fix IV handling for pattern encryption.

2019-01-16 16:34:52 -08:00

mediadrm

Update property retrival method

2019-01-15 00:24:52 -08:00

oem_certificate_generator

Deliver oem_certificate_generator

2017-05-05 00:12:26 +00:00

oemcrypto

Add some platform abstractions.

2019-01-16 11:06:55 -08:00

src

Update Copyright

2018-04-16 16:38:05 -07:00

src_hidl

Update property retrival method

2019-01-15 00:24:52 -08:00

test

Resolve Merge Disparity

2019-01-15 16:46:14 -08:00

vts/vendor_module

Update property retrival method

2019-01-15 00:24:52 -08:00

Android.mk

Add platform.cpp to Additional Build Files

2019-01-16 11:07:38 -08:00

build_and_run_all_unit_tests.sh

Add detail about L3 initialization

2018-12-14 11:32:19 -08:00

move_widevine_data.sh

Move persistent data to /data/vendor.

2018-01-15 13:50:06 -08:00

README

Add README for Android

2018-11-22 00:33:30 +00:00

run_all_unit_tests.sh

Add detail about L3 initialization

2018-12-14 11:32:19 -08:00

README

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           |
+------------------------------+------------------------------+