Viewing file:  Rsa.php (1012 B) -rw-r--r--
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<?php
declare(strict_types=1);
namespace Lcobucci\JWT\Signer;
use const OPENSSL_KEYTYPE_RSA;
abstract class Rsa extends OpenSSL
{
private const MINIMUM_KEY_LENGTH = 2048;
final public function sign(string $payload, Key $key): string
{
return $this->createSignature($key->contents(), $key->passphrase(), $payload);
}
final public function verify(string $expected, string $payload, Key $key): bool
{
return $this->verifySignature($expected, $payload, $key->contents());
}
final protected function guardAgainstIncompatibleKey(int $type, int $lengthInBits): void
{
if ($type !== OPENSSL_KEYTYPE_RSA) {
throw InvalidKeyProvided::incompatibleKeyType(
self::KEY_TYPE_MAP[OPENSSL_KEYTYPE_RSA],
self::KEY_TYPE_MAP[$type],
);
}
if ($lengthInBits < self::MINIMUM_KEY_LENGTH) {
throw InvalidKeyProvided::tooShort(self::MINIMUM_KEY_LENGTH, $lengthInBits);
}
}
}
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