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<?php declare(strict_types=1);
namespace MiladRahimi\Jwt\Cryptography\Algorithms\Eddsa;
use MiladRahimi\Jwt\Cryptography\Signer;
use MiladRahimi\Jwt\Exceptions\SigningException;
use RuntimeException;
use SodiumException;
use function function_exists;
class EdDsaSigner implements Signer
{
protected static string $name = 'EdDSA';
protected string $privateKey;
protected ?string $kid;
public function __construct(string $privateKey, ?string $kid = null)
$this->privateKey = $privateKey;
$this->kid = $kid;
}
/**
* @inheritdoc
*/
public function sign(string $message): string
if (function_exists('sodium_crypto_sign_detached')) {
try {
return sodium_crypto_sign_detached($message, $this->privateKey);
} catch (SodiumException $e) {
throw new SigningException("Cannot sign using Sodium extension", 0, $e);
throw new RuntimeException('The sodium_crypto_sign_detached function is not available');
public function name(): string
return static::$name;
public function kid(): ?string
return $this->kid;
public function getPrivateKey(): string
return $this->privateKey;
miladrahimi /
php-jwt
