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Update documentation for Cast

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Merge from Widevine repo of http://go/wvgerrit/169044

Document changes needed for supporting cast and provisioning
4.0 at the same time.

Bug: 259454830
Merged from https://widevine-internal-review.googlesource.com/166459

Change-Id: Iebf50d856c18f29db66352041b2b0429c43bd594
This commit is contained in:
Fred Gylys-Colwell
2023-03-27 19:40:19 -07:00
parent 9e7877a95d
commit 322355dbbf
1 changed files with 4 additions and 0 deletions
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4
libwvdrmengine/oemcrypto/include/OEMCryptoCENC.h
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@@ -1037,6 +1037,10 @@ OEMCryptoResult OEMCrypto_GenerateDerivedKeys(
* OEMCrypto_LoadLicense() proceed in the same manner for license requests using * OEMCrypto_LoadLicense() proceed in the same manner for license requests using
* RSA or using a Widevine keybox token. * RSA or using a Widevine keybox token.
* *
* This function is also used to derive keys before processing a Cast
* Certificate provisioning response in OEMCrypto_LoadProvisioning().
* See [Cast Receiver](../../cast) for more details.
*
* @verification * @verification
* If the RSA key's allowed_schemes is not kSign_RSASSA_PSS, then no keys are * If the RSA key's allowed_schemes is not kSign_RSASSA_PSS, then no keys are
* derived and the error OEMCrypto_ERROR_INVALID_KEY is returned. An RSA * derived and the error OEMCrypto_ERROR_INVALID_KEY is returned. An RSA