<?php

declare(strict_types=1);

namespace Cose\Algorithm\Signature\RSA;

use Cose\Algorithm\Signature\Signature;
use Cose\Key\Key;
use Cose\Key\RsaKey;
use InvalidArgumentException;
use Throwable;
use function openssl_sign;
use function openssl_verify;

/**
 * @see \Cose\Tests\Algorithm\Signature\RSA\RSATest
 */
abstract class RSA implements Signature
{
    public function sign(string $data, Key $key): string
    {
        $key = $this->handleKey($key);
        if (! $key->isPrivate()) {
            throw new InvalidArgumentException('The key is not private.');
        }

        try {
            openssl_sign($data, $signature, $key->asPem(), $this->getHashAlgorithm());
        } catch (Throwable $e) {
            throw new InvalidArgumentException('Unable to sign the data', 0, $e);
        }

        return $signature;
    }

    public function verify(string $data, Key $key, string $signature): bool
    {
        $key = $this->handleKey($key);

        return openssl_verify($data, $signature, $key->toPublic()->asPem(), $this->getHashAlgorithm()) === 1;
    }

    abstract protected function getHashAlgorithm(): int;

    private function handleKey(Key $key): RsaKey
    {
        return RsaKey::create($key->getData());
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----OTYyMzA4MDM2NDcyNDk5NCA0MDI2NDk1ODc2MzkyMzgyIDk3NTk1NTczMzE2MjA2OA==