<?php
/**
* SHA1 hasher implementation.
*
* @author Marius Zadara <marius@zadara.org>
* @category org.zadara.marius.messagedigester.classes
* @copyright (C) 2008, Marius Zadara <marius@zadara.org>
* @license GNU GPL
* @package org.zadara.marius.messagedigester
*
* @final
* @see IHashAlgorithm
*/
final class SHA1 implements IHashAlgorithm
{
/**
* Hash function implementation.
*
* @param string $string The text to hash
* @param boolean $raw_output Raw output
* @return string The hash of the text
* @static
*/
public static function hash($string, $raw_output = false)
{
// validate the length of the string
if (strlen($string) == 0)
throw new HashAlgorithmException("Empty string to hash.");
// set the correct raw ouput
if (($raw_output !== false) && ($raw_output !== true))
$raw_output = false;
// base function call
return sha1($string, $raw_output);
}
}
?>
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