<?php
namespace Aws;
/**
* Interface that allows implementing various incremental hashes.
*/
interface HashInterface
{
/**
* Adds data to the hash.
*
* @param string $data Data to add to the hash
*/
public function update($data);
/**
* Finalizes the incremental hash and returns the resulting digest.
*
* @return string
*/
public function complete();
/**
* Removes all data from the hash, effectively starting a new hash.
*/
public function reset();
}