95 lines
3.5 KiB
C++
95 lines
3.5 KiB
C++
// Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
|
|
// source code may only be used and distributed under the Widevine License
|
|
// Agreement.
|
|
|
|
#ifndef WVCDM_CORE_CONTENT_KEY_SESSION_H_
|
|
#define WVCDM_CORE_CONTENT_KEY_SESSION_H_
|
|
|
|
#include "key_session.h"
|
|
#include "metrics_collections.h"
|
|
#include "timer_metric.h"
|
|
|
|
namespace wvcdm {
|
|
|
|
class ContentKeySession : public KeySession {
|
|
public:
|
|
ContentKeySession(RequestedSecurityLevel security_level,
|
|
CryptoSessionId oec_session_id,
|
|
metrics::CryptoMetrics* metrics)
|
|
: KeySession(metrics),
|
|
oec_session_id_(oec_session_id),
|
|
security_level_(security_level),
|
|
cipher_mode_(kCipherModeCtr) {}
|
|
~ContentKeySession() override {}
|
|
|
|
KeySessionType Type() override { return kDefault; }
|
|
|
|
// Load Keys for ContentKeySession
|
|
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,
|
|
const std::string& srm_requirement) override;
|
|
|
|
OEMCryptoResult LoadEntitledContentKeys(
|
|
const std::vector<CryptoKey>&) override {
|
|
return OEMCrypto_ERROR_INVALID_CONTEXT;
|
|
}
|
|
|
|
// Select Key for ContentKeySession
|
|
OEMCryptoResult SelectKey(const std::string& key_id,
|
|
CdmCipherMode cipher_mode) override;
|
|
|
|
// Decrypt for ContentKeySession
|
|
OEMCryptoResult Decrypt(const OEMCrypto_SampleDescription* samples,
|
|
size_t samples_length,
|
|
const OEMCrypto_CENCEncryptPatternDesc& pattern,
|
|
bool is_any_subsample_protected) override;
|
|
|
|
OEMCryptoResult GenericEncrypt(const std::string& in_buffer,
|
|
const std::string& iv,
|
|
OEMCrypto_Algorithm algorithm,
|
|
std::string* out_buffer) override;
|
|
|
|
OEMCryptoResult GenericDecrypt(const std::string& in_buffer,
|
|
const std::string& iv,
|
|
OEMCrypto_Algorithm algorithm,
|
|
std::string* out_buffer) override;
|
|
|
|
OEMCryptoResult GenericSign(const std::string& message,
|
|
OEMCrypto_Algorithm algorithm,
|
|
std::string* signature) override;
|
|
|
|
OEMCryptoResult GenericVerify(const std::string& message,
|
|
OEMCrypto_Algorithm algorithm,
|
|
const std::string& signature) override;
|
|
|
|
protected:
|
|
virtual OEMCryptoResult LoadKeysAsLicenseType(
|
|
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,
|
|
const std::string& srm_requirement, OEMCrypto_LicenseType license_type);
|
|
|
|
OEMCryptoResult GetKeyHandle(CryptoSessionId session_id,
|
|
const std::string& key_id,
|
|
CdmCipherMode cipher_mode);
|
|
|
|
CryptoSessionId oec_session_id_;
|
|
|
|
private:
|
|
RequestedSecurityLevel security_level_;
|
|
|
|
KeyId cached_key_id_;
|
|
CdmCipherMode cipher_mode_;
|
|
|
|
std::vector<uint8_t> key_handle_;
|
|
};
|
|
|
|
} // namespace wvcdm
|
|
|
|
#endif // WVCDM_CORE_CONTENT_KEY_SESSION_H_
|