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Add "bootCertificateChainSignature" to Drm plugin getPropertyByteArray()

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This allows Widevine RKP HAL to query BCC signature via DRM interface
during BCC extraction for remote provisioning phase 3. The query returns
the "additional_signature" field from
OEMCrypto_GetBootCertificateChain().

Test: Manual BCC extraction on Pixel 9
Bug: 355160637
Change-Id: I1a310a80c0cfef82ee3697f06c1293d5c1c3896a
This commit is contained in:
Cong Lin
2024-09-09 11:43:00 -07:00
committed by conglin
parent 4ef3e2cee8
commit d92d3a884d
5 changed files with 42 additions and 0 deletions
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2
libwvdrmengine/cdm/core/include/wv_cdm_constants.h
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@@ -124,6 +124,8 @@ static const std::string QUERY_KEY_PRODUCTION_READY = "ProductionReady";
// Internal query key. Should not be exposed to Android apps.
static const std::string QUERY_KEY_DEBUG_BOOT_CERTIFICATE_CHAIN =
"DebugBootCertificateChain";
static const std::string QUERY_KEY_DEBUG_BOOT_CERTIFICATE_CHAIN_SIGNATURE =
"DebugBootCertificateChainSignature";
static const std::string QUERY_KEY_DEVICE_INFORMATION = "DeviceInformation";
static const std::string QUERY_VALUE_TRUE = "True";