This patch adds a suite of tests for OEMCrypto that verifying buffer
overflow and off-by-one errors. The reference code has also been
updated to pass these tests.
The ODK library and the OEMCrypto API have not changed since the
release of version 16.4.
This CL updates the following:
- Some robustness improvements to the ODK library.
- Unit tests assume that license release does not have a core message.
- Added version string to unit tests.
The version string of the unit tests is now:
OEMCrypto unit tests for API 16.2. Tests last updated 2020-03-27
This commit has the initial ODK library. Partners may use this code
to begin integrating the ODK library into their platform. The
functionality is not complete, but this should help partners get an
early start playing with build files.
This change updates the unit tests to have more comments so that it is
more clear what went wrong if a test fails.
Also, some utility code has been changed to make it easier to support
new platforms and read/write locks.
Also, the reference code has had some refactoring added to make it
easier for Widevine to test CDM code. There should be no
functionality differences in the reference code.
Also, in the main API doc, there was an obsolete paragraph in the
description of the threading model. This paragraph has been removed.
This CL updates documentation, reference code, and unit tests to match
the OEMCrypto v15.1 API.
1. The design for the Full Decrypt Path Testing application has
changed. Instead of reading hashes from an external file, it will use
a single key frame and modify it to match the desired size. The test
application will then compute the hash and encrypt the frame. For
OEMCrypto, this means that there will not be a call to
OEMCrypto_InitializeDecryptHash before the frame and
OEMCrypto_SetDecryptHash after the frame. Instead, there will be a
single call to OEMCrypto_SetDecryptHash before the frame. The function
OEMCrypto_InitializeDecryptHash will not be used.
2. The "Shared License" feature is not used by any production
server. This functionality is no longer required and OEMCrypto may
reject licenses with a nonzero bit 23 in the key control block.
This CL updates has several changes.
The document WidevineModularDRMSecurityIntegrationGuideforCENC_v14.pdf
had an incorrect definition of the PST_Report structure. The header
file had the correct definition. This has been updated and the version
number of the document was rolled to 14.1
The unit tests TwoHundredEntries has been modifed to make sure that if
the usage table is full, then OEMCrypto will return the error
OEMCrypto_ERROR_INSUFFICIENT_RESOURCES. This is important for the CDM
layer to correctly delete old licenses and secure stops when this
happens.
Several other unit tests covering corner cases have been added.
The reference code has been cleaned up a bit. Some logging that might
be dangerous has been removed.
This renames the "mock" code to "reference" because that's really what
it is. Also, some code has been moved from the CDM repo to a common
utility directory so that it can be included here, and the oemcrypto
unit tests can now be built without having access to a current CDM
repo.
There are no functionality changes in this CL.
