57 lines
1.5 KiB
PHP
57 lines
1.5 KiB
PHP
<?php
|
|
|
|
declare(strict_types=1);
|
|
|
|
namespace Jose\Component\Signature\Algorithm;
|
|
|
|
use function in_array;
|
|
use InvalidArgumentException;
|
|
use Jose\Component\Core\JWK;
|
|
use Jose\Component\Core\Util\RSAKey;
|
|
use Jose\Component\Signature\Algorithm\Util\RSA as JoseRSA;
|
|
|
|
abstract class RSAPSS implements SignatureAlgorithm
|
|
{
|
|
public function allowedKeyTypes(): array
|
|
{
|
|
return ['RSA'];
|
|
}
|
|
|
|
public function verify(JWK $key, string $input, string $signature): bool
|
|
{
|
|
$this->checkKey($key);
|
|
$pub = RSAKey::createFromJWK($key->toPublic());
|
|
|
|
return JoseRSA::verify($pub, $input, $signature, $this->getAlgorithm(), JoseRSA::SIGNATURE_PSS);
|
|
}
|
|
|
|
/**
|
|
* @return non-empty-string
|
|
*/
|
|
public function sign(JWK $key, string $input): string
|
|
{
|
|
$this->checkKey($key);
|
|
if (! $key->has('d')) {
|
|
throw new InvalidArgumentException('The key is not a private key.');
|
|
}
|
|
|
|
$priv = RSAKey::createFromJWK($key);
|
|
|
|
return JoseRSA::sign($priv, $input, $this->getAlgorithm(), JoseRSA::SIGNATURE_PSS);
|
|
}
|
|
|
|
abstract protected function getAlgorithm(): string;
|
|
|
|
private function checkKey(JWK $key): void
|
|
{
|
|
if (! in_array($key->get('kty'), $this->allowedKeyTypes(), true)) {
|
|
throw new InvalidArgumentException('Wrong key type.');
|
|
}
|
|
foreach (['n', 'e'] as $k) {
|
|
if (! $key->has($k)) {
|
|
throw new InvalidArgumentException(sprintf('The key parameter "%s" is missing.', $k));
|
|
}
|
|
}
|
|
}
|
|
}
|