<?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:----MjEwNTY1MjMyMDMyMzU2NyA2MTg5NTEyMDIxMzI4NSA3NDg1NzYwNDg4NjQ4MTcy