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<?php
/**
* This file is part of Lcobucci\JWT, a simple library to handle JWT and JWS
*
* @license http://opensource.org/licenses/BSD-3-Clause BSD-3-Clause
*/
namespace Lcobucci\JWT;
use InvalidArgumentException;
use Lcobucci\JWT\Signer\Key;
/**
* Basic interface for token signers
*
* @author Luís Otávio Cobucci Oblonczyk <lcobucci@gmail.com>
* @since 0.1.0
*/
interface Signer
{
/**
* Returns the algorithm id
*
* @return string
*/
public function getAlgorithmId();
/**
* Apply changes on headers according with algorithm
*
* @param array $headers
*/
public function modifyHeader(array &$headers);
/**
* Returns a signature for given data
*
* @param string $payload
* @param Key|string $key
*
* @return Signature
*
* @throws InvalidArgumentException When given key is invalid
*/
public function sign($payload, $key);
/**
* Returns if the expected hash matches with the data and key
*
* @param string $expected
* @param string $payload
* @param Key|string $key
*
* @return boolean
*
* @throws InvalidArgumentException When given key is invalid
*/
public function verify($expected, $payload, $key);
}
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