5e24549b1a
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
71 lines
2.7 KiB
C++
71 lines
2.7 KiB
C++
// Copyright 2021 Google LLC. All Rights Reserved. This file and proprietary
|
|
// source code may only be used and distributed under the Widevine License
|
|
// Agreement.
|
|
|
|
#ifndef WIDEVINE_OEMCRYPTO_INTERFACE_H_
|
|
#define WIDEVINE_OEMCRYPTO_INTERFACE_H_
|
|
|
|
#include <cstdint>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include "OEMCryptoCENC.h"
|
|
|
|
namespace widevine {
|
|
|
|
class OEMCryptoInterface {
|
|
public:
|
|
OEMCryptoInterface() = default;
|
|
OEMCryptoInterface(const OEMCryptoInterface&) = delete;
|
|
OEMCryptoInterface& operator=(const OEMCryptoInterface&) = delete;
|
|
virtual ~OEMCryptoInterface();
|
|
|
|
// Initializes this interface by providing path to the OEMCrypto library.
|
|
bool Init(const std::string& oemcrypto_path);
|
|
|
|
// Retrieves the boot certificate chain from OEMCrypto implementation.
|
|
OEMCryptoResult GetBcc(std::vector<uint8_t>& bcc);
|
|
|
|
// Retrieves the build information of the OEMCrypto library from OEMCrypto
|
|
// implementation.
|
|
OEMCryptoResult GetOEMCryptoBuildInfo(std::string& build_info);
|
|
|
|
// Retrieves the verified device information of the OEMCrypto library from
|
|
// OEMCrypto implementation.
|
|
OEMCryptoResult GetVerifiedDeviceInformation(
|
|
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)();
|
|
typedef OEMCryptoResult (*Terminate_t)();
|
|
typedef OEMCryptoResult (*GetBootCertificateChain_t)(
|
|
uint8_t* bcc, size_t* bcc_size, uint8_t* additional_signature,
|
|
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 (*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;
|
|
Terminate_t Terminate = nullptr;
|
|
GetBootCertificateChain_t GetBootCertificateChain = nullptr;
|
|
BuildInformation_t BuildInformation = nullptr;
|
|
GetDeviceInformation_t GetDeviceInformation = nullptr;
|
|
GetDeviceSignedCsrPayload_t GetDeviceSignedCsrPayload = nullptr;
|
|
|
|
void* handle_ = nullptr;
|
|
};
|
|
|
|
} // namespace widevine
|
|
|
|
#endif // WIDEVINE_OEMCRYPTO_INTERFACE_H_
|