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Internal factory tool implements CSR v3

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Widevine internal BCC extraction tool to extract CSR v3 for testing
purpose. The difference it has from the factory tool is it doesn't rely
on Widevine IRPC HAL.

It just extracts BCC/CSR in the specified format from cli.

Test: Extract CSR v3 on Pixel 7 and upload
Bug: 268246995
Change-Id: I52abe09f991c89c6e7601bcef4d980f24c020c9f
This commit is contained in:
Cong Lin
2023-02-13 11:48:14 -08:00
parent 8dc7cc0c74
commit 5e24549b1a
5 changed files with 183 additions and 103 deletions
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23
libwvdrmengine/tools/factory_upload_tool/include/WidevineOemcryptoInterface.h
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@@ -13,13 +13,6 @@
namespace widevine {
struct VerifiedDeviceInfo {
std::vector<uint8_t> device_info;
// Used by Interface of Remote Provisioning Component (IRPC) v3 for CSR
// uploading
std::vector<uint8_t> signed_csr_payload;
};
class OEMCryptoInterface {
public:
OEMCryptoInterface() = default;
@@ -40,7 +33,13 @@ class OEMCryptoInterface {
// Retrieves the verified device information of the OEMCrypto library from
// OEMCrypto implementation.
OEMCryptoResult GetVerifiedDeviceInformation(
VerifiedDeviceInfo& verified_device_info);
std::vector<uint8_t>& verified_device_info);
// Generates device registration CSR payload and signs it with the leaf cert
// of BCC.
OEMCryptoResult GetSignedCsrPayload(const std::vector<uint8_t>& challenge,
const std::vector<uint8_t>& device_info,
std::vector<uint8_t>& signed_csr_payload);
private:
typedef OEMCryptoResult (*Initialize_t)();
@@ -50,8 +49,11 @@ class OEMCryptoInterface {
size_t* additional_signature_size);
typedef OEMCryptoResult (*BuildInformation_t)(char* buffer,
size_t* buffer_length);
typedef OEMCryptoResult (*GetDeviceInformation_t)(
uint8_t* device_info, size_t* device_info_length,
typedef OEMCryptoResult (*GetDeviceInformation_t)(uint8_t* device_info,
size_t* device_info_length);
typedef OEMCryptoResult (*GetDeviceSignedCsrPayload_t)(
const uint8_t* challenge, size_t challenge_length,
const uint8_t* device_info, size_t device_info_length,
uint8_t* signed_csr_payload, size_t* signed_csr_payload_length);
Initialize_t Initialize = nullptr;
@@ -59,6 +61,7 @@ class OEMCryptoInterface {
GetBootCertificateChain_t GetBootCertificateChain = nullptr;
BuildInformation_t BuildInformation = nullptr;
GetDeviceInformation_t GetDeviceInformation = nullptr;
GetDeviceSignedCsrPayload_t GetDeviceSignedCsrPayload = nullptr;
void* handle_ = nullptr;
};