Files
android/libwvdrmengine/cdm/core/include/key_session.h
Fred Gylys-Colwell db2050dff1 OEMCrypto v16.2
Merge from Widevine repo of http://go/wvgerrit/93404

This is the unit tests, reference code, and documentation for
OEMCrypto v16.2. Backwards compatibility should work for a v15
OEMCrypto.

Some review comments will be addressed in future CLs.

Bug: 141247171
Test: Unit tests
Test: Media GTS tests on bonito
Change-Id: I9d427c07580e180c0a4cfdc4a68f538d351c0ddd
2020-02-04 20:33:16 -08:00

53 lines
1.9 KiB
C++

// Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
// source code may only be used and distributed under the Widevine Master
// License Agreement.
#ifndef WVCDM_CORE_KEY_SESSION_H_
#define WVCDM_CORE_KEY_SESSION_H_
#include <vector>
#include "OEMCryptoCENC.h"
#include "metrics_collections.h"
#include "wv_cdm_types.h"
namespace wvcdm {
class CryptoKey;
class KeySession {
protected:
KeySession(metrics::CryptoMetrics* metrics) : metrics_(metrics) {}
public:
typedef enum { kDefault, kEntitlement } KeySessionType;
virtual ~KeySession() {}
virtual KeySessionType Type() = 0;
virtual OEMCryptoResult GenerateDerivedKeys(const std::string& message) = 0;
virtual OEMCryptoResult GenerateDerivedKeys(
const std::string& message, const std::string& session_key) = 0;
virtual OEMCryptoResult LoadKeys(const std::string& message,
const std::string& signature,
const std::string& mac_key_iv,
const std::string& mac_key,
const std::vector<CryptoKey>& keys,
const std::string& provider_session_token,
CdmCipherMode* cipher_mode,
const std::string& srm_requirement) = 0;
virtual OEMCryptoResult LoadEntitledContentKeys(
const std::vector<CryptoKey>& keys) = 0;
virtual OEMCryptoResult SelectKey(const std::string& key_id,
CdmCipherMode cipher_mode) = 0;
virtual OEMCryptoResult Decrypt(
const CdmDecryptionParameters& params,
OEMCrypto_DestBufferDesc& buffer_descriptor, size_t additional_offset,
const OEMCrypto_CENCEncryptPatternDesc& pattern_descriptor) = 0;
protected:
metrics::CryptoMetrics* metrics_;
};
} // namespace wvcdm
#endif // WVCDM_CORE_KEY_SESSION_H_