nextcloud/apps/files_external/3rdparty/aws-sdk-php/Aws/Common/Hash/ChunkHashInterface.php

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<?php
/**
* Copyright 2010-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
namespace Aws\Common\Hash;
/**
* Interface for objects that encapsulate the creation of a hash from streamed chunks of data
*/
interface ChunkHashInterface
{
const DEFAULT_ALGORITHM = 'sha256';
/**
* Constructs the chunk hash and sets the algorithm to use for hashing
*
* @param string $algorithm A valid hash algorithm name as returned by `hash_algos()`
*
* @return self
*/
public function __construct($algorithm = 'sha256');
/**
* Add a chunk of data to be hashed
*
* @param string $data Data to be hashed
*
* @return self
*/
public function addData($data);
/**
* Return the results of the hash
*
* @param bool $returnBinaryForm If true, returns the hash in binary form instead of hex form
*
* @return string
*/
public function getHash($returnBinaryForm = false);
}