I’m testing some code to generate user licenses on a server with the following php code that I got from here:

```
<?php
include ('BigInteger.php');
$privatePart1 = "72fa7824e0c3208d";
$privatePart2 = "8fb9162f9c73f563";
function applyToValue ($message, $key_part1, $key_part2)
{
$result = new Math_BigInteger();
$zero = new Math_BigInteger();
$value = new Math_BigInteger (strrev ($message), 256);
$part1 = new Math_BigInteger ($key_part1, 16);
$part2 = new Math_BigInteger ($key_part2, 16);
while (! $value->equals ($zero))
{
$result = $result->multiply ($part2);
list ($value, $remainder) = $value->divide ($part2);
$result = $result->add ($remainder->modPow ($part1, $part2));
}
return $result->toHex();
}
$input = "Joe User,joe@user.com,myProductName";
$userLicense = applyToValue ($input, $privatePart1, $privatePart2);
echo $userLicense;
?>
```

That gives me “0e34cc40929df005a5d0c3106069a6d46d62518f62569a7e2938574c4f8903de1c3745618c4df562” output to the browser screen (which I would email to the user) and use it inside my plugin like this:

```
void decode()
{
String fromServer = "0e34cc40929df005a5d0c3106069a6d46d62518f62569a7e2938574c4f8903de1c3745618c4df562";
RSAKey publicKey("5,8fb9162f9c73f563");
BigInteger val;
val.parseString(fromServer, 10);
publicKey.applyToValue(val);
String decoded = val.toString(10);
DBG ("decoded: " + decoded);
}
```

I expect to see “Joe User,joe@user.com,myProductName”, but I’m getting “557808617549894482492343375676741911471126211295016976348”, so obviously I’m either missing a step or I don’t completely understand what’s going on.

Sorry for the ugly testing code, but I’m just trying to get it working before I’m clean it up.

Anyone? Thanks.