5f209e6980
Note that this version does not have Widevine Provisioning 4.0 support. It is only suitable for device upgrades. A new patch with provisioning 4.0 support will be made later.
69 lines
2.4 KiB
C++
69 lines
2.4 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 ECM_PARSER_V3_H
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#define ECM_PARSER_V3_H
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#include <memory>
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#include <vector>
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#include "cas_types.h"
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#include "ecm_parser.h"
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#include "media_cas.pb.h"
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namespace wvcas {
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// EcmParser allows random access to the fields of an ECM.
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class EcmParserV3 : public EcmParser {
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public:
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~EcmParserV3() override = default;
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EcmParserV3(const EcmParserV3&) = delete;
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EcmParserV3& operator=(const EcmParserV3&) = delete;
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// The EcmParserV3 factory method.
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// |ecm| must be Widevine ECM v3 (or higher if compatible) without section
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// header. Validates the ecm. If validations is successful returns an
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// EcmParserV3, otherwise an nullptr.
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static std::unique_ptr<EcmParserV3> Create(const CasEcm& ecm);
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// Accessor methods.
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uint8_t version() const override;
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CryptoMode crypto_mode() const override;
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bool rotation_enabled() const override;
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size_t content_iv_size() const override;
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uint8_t age_restriction() const override;
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std::vector<uint8_t> entitlement_key_id(KeySlotId id) const override;
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std::vector<uint8_t> content_key_id(KeySlotId id) const override;
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std::vector<uint8_t> wrapped_key_data(KeySlotId id) const override;
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std::vector<uint8_t> wrapped_key_iv(KeySlotId id) const override;
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std::vector<uint8_t> content_iv(KeySlotId id) const override;
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bool set_group_id(const std::string& group_id) override;
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bool has_fingerprinting() const override;
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video_widevine::Fingerprinting fingerprinting() const override;
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bool has_service_blocking() const override;
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video_widevine::ServiceBlocking service_blocking() const override;
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// The serialized payload that the signature is calculated on.
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std::string ecm_serialized_payload() const override;
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std::string signature() const override;
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bool is_entitlement_rotation_enabled() const override;
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uint32_t entitlement_period_index() const override;
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uint32_t entitlement_rotation_window_left() const override;
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private:
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// Constructs an EcmParserV3 using |ecm|.
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EcmParserV3(video_widevine::SignedEcmPayload signed_ecm_payload,
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video_widevine::EcmPayload ecm_payload);
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video_widevine::SignedEcmPayload signed_ecm_payload_;
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video_widevine::EcmPayload ecm_payload_;
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video_widevine::EcmKeyData even_key_data_;
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video_widevine::EcmKeyData odd_key_data_;
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};
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} // namespace wvcas
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#endif // ECM_PARSER_V3_H
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