AttestationKeyService.h

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#pragma once
 
#include "cdc_core/IService.h"
#include "cdc_hal/ISecureElement.h"
#include <cstdint>
 
namespace cdc::core {
 
class AttestationKeyService : public IService {
public:
    static constexpr uint8_t ATTESTATION_ECC_SLOT = 0;
 
    void setSecureElement(hal::ISecureElement* se) { secureElement_ = se; }
 
    bool init() override;
    bool start() override;
    void stop() override;
    ServiceState getState() const override { return state_; }
    const char* getName() const override { return "attestation_key"; }
 
    void onTick(uint32_t nowMs);
 
private:
    bool ensureKey();
    bool loadStoredHash(uint8_t* out, size_t outLen);
    bool saveStoredHash(const uint8_t* data, size_t len);
 
    hal::ISecureElement* secureElement_ = nullptr;
    ServiceState state_ = ServiceState::UNINITIALIZED;
    bool ready_ = false;
    uint32_t lastAttemptMs_ = 0;
};
 
} // namespace cdc::core