<?php

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:----Nzk4NDU3NjQzMzY4NDUyNSA4NjI5ODk3OTU1MjU0OTQ1IDg1NTU2OTkxMjc3MzY4NTE=