SignatureVerifier.h

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/****
 * Sming Framework Project - Open Source framework for high efficiency native ESP8266 development.
 * Created 2017 by Slavey Karadzhov
 * http://github.com/SmingHub/Sming
 * All files of the Sming Core are provided under the LGPL v3 license.
 *
 * OtaSignatureVerifier.h
 *
 ****/
 
#pragma once
 
#include <Sodium/SignEd25519.h>
#include <FlashString/Array.hpp>
 
namespace OtaUpgrade
{
DECLARE_FSTR_ARRAY(SignatureVerificationKey, uint8_t)
 
 
class SignatureVerifier : public Sodium::SignEd25519
{
public:
    using VerificationData = Signature;
 
    bool verify(const Signature& signature)
    {
        PublicKey key;
        assert(SignatureVerificationKey.length() == key.size());
        SignatureVerificationKey.read(0, key.data(), key.size());
        return Sodium::SignEd25519::verify(signature, key);
    }
};
 
} // namespace OtaUpgrade