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<?php
declare(strict_types=1);
namespace FRZB\Component\Cryptography\Service;
use FRZB\Component\Cryptography\Exception\CryptographyException;
use phpseclib\Crypt\Base as Crypto;
class CryptographyService implements CryptographyInterface
{
public function __construct(
private readonly Crypto $crypto,
) {
}
public function isEncrypted(string $payload): bool
return str_starts_with($payload, '<ENC>') && str_ends_with($payload, '</ENC>');
public function encrypt(string $payload): string
try {
$encrypted = (string) ($this->crypto->encrypt($payload) ?: throw CryptographyException::encryptFailure());
} catch (\Throwable $e) {
throw CryptographyException::fromThrowable($e);
return sprintf('<ENC>%s</ENC>', base64_encode($encrypted));
public function decrypt(string $payload): string
$this->isEncrypted($payload) ?: throw CryptographyException::notEncrypted();
$payload = str_replace(['<ENC>', '</ENC>'], ['', ''], $payload);
$payload = (string) (base64_decode($payload, true) ?: throw CryptographyException::decodeFailure());
return (string) ($this->crypto->decrypt($payload) ?: throw CryptographyException::decryptFailure());
fractalzombie /
frzb-cryptography
