Current File : //www/varak.net/nextcloud.varak.net/3rdparty/web-auth/cose-lib/src/Algorithm/Signature/RSA/RSA.php
<?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());
}
}
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