<?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:----NzUzOTc5NjQxMDEzNjk5OCA4MzExNjA2MDc3NzUwMzk4IDMyNjE1MTY1NTQ1MjY5Mzk=