Keskustelu: Koodit: PHP: super_hash(); 1024bit decrypt

<?php
/*

 super hash function by juha tauriainen 6.2.2004
 0.02b ;-)

 made with simple php functions:
 https://www.php.net/manual/en/function.md5.php  ( this is the most important )
 https://www.php.net/manual/en/function.md5-file.php  ( if hashing a file, we need this )
 https://www.php.net/manual/en/function.sha1.php  ( if PHP version is 4.3.0 or higher, sha1 will be used also )
 https://www.php.net/manual/en/function.sha1-file.php  ( if hashing file and PHP version is 4.3.0 or higher, sha1_file will be used also )
 https://www.php.net/manual/en/function.substr.php ( lets get the length of the string that we want to hash )
 https://www.php.net/manual/en/function.empty.php ( only a check, not so important )
 https://www.php.net/manual/en/function.phpversion.php ( print the php version )
 https://www.php.net/manual/en/function.list.php ( just to make a list out of php version )
 https://www.php.net/manual/en/function.file-exists.php ( checking if file exists, if $mode == file )
 https://www.php.net/manual/en/function.exit.php ( if any errors accures, exit and echo error )
 https://www.php.net/manual/en/function.unset.php ( deleting the variables, freeing memory )

 and lets not forget for loops ;-)
 https://www.php.net/manual/en/control-structures.for.php



 usage $pass = super_hash("salakala", "text");
 results 1024 bit string made with md5
 so salakala becomes the string below

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

 you need to have PHP 3 or higher to get this working.
 the best result will be with the latest version of PHP
 if upgraded from <4.2.0, hashes made with this wont return the same string.
 you can get this to work how ever you want to, it's really simple.
 this only for demonstrating. if you find this useful, please go ahead and use it.
 but i strongly suggest that you modify this for your needs!

 use as you will

*/

function super_hash($var, $mode="") {
if(empty($var)) { exit("There's nothing to encrypt"); }

/*
 if php version is greater than 4.3.0, we're going to use sha1 also.
 +4.3.0
 first we make 40 character string out of $var
 after that we make md5 hash out of sha1 hash and then another md5 hash out of the first md5 hash
 this is just for better security ;-)
 -4.3.0
 first we make 32 character string out of $var with md5 and then hash it again with md5
*/
	$php_v = phpversion(); // find out what version of php we are using...
	list($upper,$major,$minor) = explode(".",$php_v); // ... and then make a nice list out of the results

if($mode == "file") {
	if($upper >= 4 && $major >= 2 && $minor >= 0) {

		if(file_exists($var)) {

			if($upper >= 4 && $major >= 3 && $minor >= 0) {
				$var = md5_file(md5_file(sha1_file($var))); /* there is some trouble with md5_file */
			} else { $var = md5_file(md5_file($var)); }

		} else { exit("File does not exists"); }

	} else { $var = md5(md5($var)); }

} else if(($mode == "text" || empty($mode)) && $upper >= 4 && $major >= 3 && $minor >= 0) {
	$var = md5(md5(sha1($var)));
} else {
	$var = md5(md5($var));
}


		for($i=1;$i<=32;$i++) {
			/*
			below we take the md5($var) string and start making the super hash string.
			we start at line $i from the md5($var) string and take as many lines as $i contains.
			if there aren't anything left, it will take only one or zero
			*/
			$password = substr($var, $i, $i);
			# echo "$i $password<br>"; // remove the # if you want to see what the code below hash
			$super_pass .= md5(md5($password)); // let's do double md5 hash to the $password string
		}


	return $super_pass;
	/* lets destroy these so they don't take too much memory (this is not necessary) */
	unset($password, $var, $super_pass, $upper, $major, $minor, $php_v, $i);
}

// i'm 99% sure that you don't want to use this here, so just go ahead and delete the next row ;-)
echo super_hash("salakala");

// you can also use super_hash($var, $mode); where $mode is "text" or "file"
// if $mode is "file", you have to have PHP 4.2.0 or higher. And also the file have to exists (it's checked in the code)
?>