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