1cd8195d88
This CL adds usage tables to the OEMCrypto reference implementation (mock) and unit tests. There is also a new parameter called oem_crypto_require_usage_tables that determines if the usage tables are required or not. This is set to true for Android and false for all other platforms. This CL is most of OEMCrypto version 9 updates. This CL is a copy of https://widevine-internal-review.googlesource.com/#/c/9720 https://widevine-internal-review.googlesource.com/#/c/9874 https://widevine-internal-review.googlesource.com/#/c/9873 Change-Id: I78c4f7651306f9f79ba2260c3e04fb1eca7e20e3
78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
// Copyright 2013 Google Inc. All Rights Reserved.
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//
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// Mock implementation of OEMCrypto APIs
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//
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#ifndef OEMCRYPTO_KEY_MOCK_H_
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#define OEMCRYPTO_KEY_MOCK_H_
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#include <stdint.h>
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#include <string>
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#include <vector>
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namespace wvoec_mock {
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const uint32_t kControlObserveDataPath = (1<<31);
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const uint32_t kControlObserveHDCP = (1<<30);
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const uint32_t kControlObserveCGMS = (1<<29);
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const uint32_t kControlReplayMask = (0x03<<13);
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const uint32_t kControlNonceRequired = (0x01<<13);
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const uint32_t kControlNonceOrEntry = (0x02<<13);
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const uint32_t kControlHDCPVersionShift = 9;
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const uint32_t kControlHDCPVersionMask = (0x0F<<kControlHDCPVersionShift);
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const uint32_t kControlAllowEncrypt = (1<<8);
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const uint32_t kControlAllowDecrypt = (1<<7);
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const uint32_t kControlAllowSign = (1<<6);
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const uint32_t kControlAllowVerify = (1<<5);
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const uint32_t kControlDataPathSecure = (1<<4);
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const uint32_t kControlNonceEnabled = (1<<3);
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const uint32_t kControlHDCPRequired = (1<<2);
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const uint32_t kControlCGMSMask = (0x03);
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const uint32_t kControlCGMSCopyFreely = (0x00);
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const uint32_t kControlCGMSCopyOnce = (0x02);
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const uint32_t kControlCGMSCopyNever = (0x03);
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class KeyControlBlock {
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public:
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KeyControlBlock(const std::vector<uint8_t>& key_control_string);
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~KeyControlBlock() {}
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bool Validate();
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void Invalidate() { valid_ = false; }
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bool valid() const { return valid_; }
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uint32_t duration() const { return duration_; }
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void set_duration(uint32_t duration) { duration_ = duration; }
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uint32_t nonce() const { return nonce_; }
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uint32_t verification() const { return verification_; }
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uint32_t control_bits() const { return control_bits_; }
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private:
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uint32_t ExtractField(const std::vector<uint8_t>& str, int idx);
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bool valid_;
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uint32_t verification_;
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uint32_t duration_;
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uint32_t nonce_;
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uint32_t control_bits_;
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};
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// AES-128 crypto key, or HMAC signing key.
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class Key {
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public:
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Key(const Key& key) : value_(key.value_), control_(key.control_) {}
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Key(const std::vector<uint8_t>& key_string, const KeyControlBlock& control);
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virtual ~Key() {};
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void UpdateDuration(const KeyControlBlock& control);
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const std::vector<uint8_t>& value() const { return value_; }
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const KeyControlBlock& control() const { return control_; }
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private:
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std::vector<uint8_t> value_;
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KeyControlBlock control_;
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};
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}; // namespace wvoec_eng
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#endif
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