Hi,
 Thanks for the prompt answer. But I am still getting the same error.

/////////////////////////////////////////////////////
original: meet at secret place
encrypted: d40d72f1b224b9bf86a7dbc52402c1d02a5cf90adb9050f0

Warning: mcrypt_generic_init: Memory allocation error in
/mount/marsellus/gwolfe/puruclient/staging/vhosts/partnersdev.sec.yaga.com/h
tml/time/cancelsubscription/new.php on line 29

Warning: mdecrypt_generic(): 2 is not a valid MCrypt resource in
/mount/marsellus/gwolfe/puruclient/staging/vhosts/partnersdev.sec.yaga.com/h
tml/time/cancelsubscription/new.php on line 30

Warning: mcrypt_generic_end(): 2 is not a valid MCrypt resource in
/mount/marsellus/gwolfe/puruclient/staging/vhosts/partnersdev.sec.yaga.com/h
tml/time/cancelsubscription/new.php on line 31
decrypted:


///////////////////////////////////////////


Regards,

Purushotham Komaravolu
Software Engineer
Yaga, Inc. - "advanced payment services"
Direct: 415-901-7343
Fax: 415-901-1586
http://www.yaga.com



----- Original Message -----
From: "Tech Support" <[EMAIL PROTECTED]>
To: "Purushotham Komaravolu" <[EMAIL PROTECTED]>
Sent: Tuesday, July 30, 2002 11:34 AM
Subject: Re: [PHP] mcrypt


> Rather than tease you with hints I'll give you some working code ;-)
>
> Documentation for practical usage of mcrypt is weak. I agree.
>
> <?
> // crypto.inc
> $key = "secret key crap";
>
> function hex2bin($data)
> {
>     $len = strlen($data);
>     return pack("H" . $len, $data);
> }
>
> function encrypt($string, $key)
> {
>      // version 2.4.x of lib mcrypt
>      $td = mcrypt_module_open (MCRYPT_TripleDES, "", MCRYPT_MODE_ECB, "");
>      $iv = mcrypt_create_iv (mcrypt_enc_get_iv_size ($td), MCRYPT_RAND);
>      mcrypt_generic_init ($td, $key, $iv);
>      $crypted = mcrypt_generic ($td, $string);
>      mcrypt_generic_end ($td);
>      return bin2hex($crypted);
> }
>
> function decrypt($string, $key)
> {
>      //version 2.4.x of lib mcrypt
>      $string = hex2bin($string);
>      $td = mcrypt_module_open (MCRYPT_TripleDES, "", MCRYPT_MODE_ECB, "");
>      $iv = mcrypt_create_iv (mcrypt_enc_get_iv_size ($td), MCRYPT_RAND);
>      mcrypt_generic_init ($td, $key, $iv);
>      $decrypted = mdecrypt_generic ($td, $string);
>      mcrypt_generic_end ($td);
>      return trim($decrypted);
> }
> ?>
>
>
> usage:
> <?
> include ("path/to/crypto.inc");
> $secret = "meet at secret place";
> $encrypted = encrypt($secret, $key);
> print "original: " . $secret . "<br>";
> print "encrypted: " . $encrypted . "<br>";
> $decrypted = decrypt($encrypted, $key);
> print "decrypted: " . $decrypted . "<br>";
> ?>
>
> Note: if you are encrypting really secret crap like credit card numbers or
> something of that nature then NEVER include the key anywhere in your code.
> Make a form where you have to type it in or something in order to display
> the results.
>
>
> Jim Grill
> Support
> Web-1 Hosting
> http://www.web-1hosting.net
> ----- Original Message -----
> From: "Purushotham Komaravolu" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
> Sent: Tuesday, July 30, 2002 12:52 PM
> Subject: [PHP] mcrypt
>
>
>         Hello,
>           I am getting some odd errors trying to get an encrypt/decrypt
> process to
>       work. Looking at the manual examples and some other literature, I
have
> tried
>       the two approaches listed below. For each, I get a sometimes-works,
>       sometimes fails result. The manual entry has a string of user notes
> with
>       problem like mine, but I still have problems.
>
>
>
>       Server API Apache
>
>
>
>       mcrypt
>             mcrypt support enabled
>             version 2.4.x
>             Supported ciphers twofish rijndael-128 rijndael-192
rijndael-256
>       saferplus rc2 xtea serpent safer-sk64 safer-sk128 cast-256 loki97
gost
>       threeway cast-128 des tripledes enigma arcfour panama wake
>             Supported modes ofb cfb nofb cbc ecb stream
>
>
>       --]
>
>
>
>       The first attempt used the following code:
>
>
>       -->
>       <?php
>           $key = "this is a secret key";
>           $input = "Let us meet at 9 o'clock at the secret place.";
>
>
>           $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);
>           $decrypted_data = mdecrypt_generic ($td, $encrypted_data);
>           mcrypt_generic_end ($td);
>
>
>         echo "key:
>
>
$key<br>input:$input<br>encrypted:$encrypted_data<br>decrypted:$decrypted_da
>       ta";
>       ?>
>       --]
>
>
>       This resulted, at first, in "key: this is a secret key
>       input:Let us meet at 9 o'clock at the secret place.
>       encrypted:\T'z(vFaFU Sz5Q<_T-:
>       decrypted:Let us meet at 9 o'clock at the secret place."
>
>
>       BUT after I refreshed/reloaded a couple of times, I got this:
> "Warning:
>       mcrypt_generic_init: Memory allocation error in
>       /home/pndrdrm001/www/administrator/crypt.php on line 64
>
>
>       Warning: 1 is not a valid MCrypt resource in
>       /home/pndrdrm001/www/administrator/crypt.php on line 65
>
>
>       Warning: 1 is not a valid MCrypt resource in
>       /home/pndrdrm001/www/administrator/crypt.php on line 66
>
>
>       Warning: 1 is not a valid MCrypt resource in
>       /home/pndrdrm001/www/administrator/crypt.php on line 67
>       key: this is a secret key
>       input:Let us meet at 9 o'clock at the secret place.
>       encrypted:
>       decrypted: "
>
>
>       There were no changes to the code.
>
>
>
>       The second try used the following:
>
>
>       In file 1, the functions:
>       -->
>       <?php
>
>
>        function my_encrypt($sString)
>        {
>         GLOBAL $sCryptoKey;
>
>
>         $iIV = mcrypt_create_iv (mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256,
>       MCRYPT_MODE_ECB), MCRYPT_RAND);
>
>
>         $sEncrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $sCryptoKey,
> $sString,
>       MCRYPT_MODE_ECB, $iIV);
>
>
>         return($sEncrypted);
>        } // End function my_encrypt
>
>
>        function my_decrypt($sString)
>        {
>         GLOBAL $sCryptoKey;
>
>
>         $iIV = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256,
>       MCRYPT_MODE_ECB), MCRYPT_RAND);
>
>
>         $sDecrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $sCryptoKey,
> $sString,
>       MCRYPT_MODE_ECB, $iIV);
>
>
>         return(trim($sDecrypted));
>
>
>        } // End function my_decrypt
>       ?>
>       --]
>       and in file 2, the main page:
>       -->
>       <?php
>         include "cryption.php";
>         $sCryptoKey = "key";
>         $input = "test";
>         $encrypted = my_encrypt($input);
>         $decrypted = my_decrypt($encrypted);
>
>
>         echo "key:
>
>
$sCryptoKey<br>input:$input<br>encrypted:$encrypted<br>decrypted:$decrypted"
>       ;
>
>
>
>       ?>
>       --]
>
>
>       This resulted in "key: key
>       input:test
>       encrypted: &foU~RMKz Orw"x@n
>       decrypted:test " the first time, but then I got "Fatal error:
> generic_init
>       failed in /home/pndrdrm001/www/administrator/cryption.php on line 9"
> on the
>       second refresh.
>
>
>
>       Is there a missing call to free resources, or something? What can be
> done?
>
>
>       Thanks!
>       Regards,
>
>       Puru
>

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