Description:
------------
$a="hola";
$b=cry($a,'sdglmsdd');
$c=dcry($b,'sdglmsdd')

result: $c!=$a

Correct result: $c==$a

Code until now working in version 4 of php

The function cry work how before. Seem work OK.
The function dcry FAIL. Don't work how before.

Reproduce code:
---------------
	function cry($input,$key)
		{$input = str_replace("\n","",$input);
	    	$input = str_replace("\t","",$input);
	    	$input = str_replace("\r","",$input);
	    	$key = substr(md5($key),0,24);
	    	$td = mcrypt_module_open ('tripledes', '', 'ecb', '');
	    	$iv = mcrypt_create_iv (mcrypt_enc_get_iv_size ($td), MCRYPT_RAND);
	    	mcrypt_generic_init ($td, $key, $iv);
	    	$encrypted_data = mcrypt_generic ($td, $input);
	    	mcrypt_module_close ($td);
	    	return trim(chop(base64_encode($encrypted_data)));}
	function dcry($input,$key)
		{$input = str_replace("\n","",$input);
		$input = str_replace("\t","",$input);
		$input = str_replace("\r","",$input);
		$input = trim(chop(base64_decode($input)));
		$td = mcrypt_module_open ('tripledes', '', 'ecb', '');
		$key = substr(md5($key),0,24);
		$iv = mcrypt_create_iv (mcrypt_enc_get_iv_size ($td), MCRYPT_RAND);
		mcrypt_generic_init ($td, $key, $iv);
		$decrypted_data = mdecrypt_generic ($td, $input);
		mcrypt_module_close ($td);		
		return trim(chop($decrypted_data));}