There were no new changes to the OEMCrypto code. However, the ODK
library changed, so we rolled the minor version number to 3. The ODK
library was updated to support a nonce-free offline license. An
offline license would not require a nonce if, for example, it is
preloaded onto the device and does not have an entry in the usage
table.
Also, the following unit tests have been updated:
1. Various tests: Keys are not derived if they are not used. This is more
in line with the “OEMCrypto state” diagram below.
2. The decrypt hash is not verified when there are multiple samples or no
key is selected.
3. LoadKeyWithNoRequest. A nonce-free license is loaded in a session that
did not sign the request. (Requires 16.3 ODK library)
4. RefreshLargeBuffer. The renewal message was set to the large
size. Previously, only the license request was set to the larger size.
5. OEMCryptoGenericCryptoTest.*LargeBuffer. The correct buffer size is
now being used.
6. ShrinkOverOpenSessions: The correct error code
OEMCrypto_ERROR_ENTRY_IN_USE is now verified.
7. TimeRollbackPrevention: The test was refactored and fixed. Comments
were added.
There were no function signature changes, so the API version number
did not change from 16.2. There were several grammar and spelling
errors. There were also the following corrections:
1. The description of OEMCrypto_LoadProvisioning now says that devices
with a keybox use keys derived from the keybox device key, and devices
using Provisioning 3.0 use keys derived from the session key. The
description was previously reversed.
2. The function OEMCrypto_SupportedPatterns is no longer
discussed. This function was never fully defined.
3. The function OEMCrypto_LoadRenewal no longer says that keys and key
control blocks should be verified. This is because the function
OEMCrypto_LoadRenewal processes a message with no key control
block. It should update timers for the entire license.
This commit contains the updated v16.1 documentation dated Nov 12th,
as well has the headers and update ODK library.
Unit tests and reference code is partially implemented, but not yet
complete.
