9ae7489938
Merge from Widevine repo of http://go/wvgerrit/41834 Key rotation is not yet supported. The key statuses are updated from a license. The mechanism expects content keys tro come in a license. For entitlement licenses, the content keys come in the init_data. This code does not yet support the key rotation event. (A new pssh with wrapped keys is a passed to the cdm) The policy engine/key status mechanism needs to be updated to handle updated from the init_data. For now, the cdm builds a license with a key container with the content keys and used that to call PolicyEngine::SetLicense to setup the policy engine and key statuses. Bug: 64003606 Bug: 70334840 Test: In child CL Change-Id: Ibf46a18f5321cab4ff6f1778ba30527942c8021f
46 lines
1.7 KiB
C++
46 lines
1.7 KiB
C++
#ifndef WVCDM_CORE_KEY_SESSSION_H_
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#define WVCDM_CORE_KEY_SESSSION_H_
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#include "metrics_collections.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, kSubLicense, 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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typedef std::map<std::string, CryptoSessionId> SubLicenseSessionMap;
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} // namespace wvcdm
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#endif // WVCDM_CORE_KEY_SESSSION_H_
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