TYPO3 Core

For windows users experiencing the same bug on windows XP / windows server 2003, it can easily be fixed by theses few steps :

1 - Download and install CAPICOM sdk from microsoft
http://www.microsoft.com/downloads/details.aspx?FamilyId=860EE43A-A843-462F-ABB5-FF88EA5896F6&displaylang=en

2 - register the dll for COM service (the newly installed dll can be found in the folder C:\Program Files\Fichiers communs\Microsoft Shared\CAPICOM) with this command :
regsvr32 capicom.dll

3 - Enjoy !

For devellopers,

maybe adding a better message could help people resolving the issue, as an alternative for a better workaround

new COM or die ('Please install CAPICOM ... ');

(EDIT: Had the issue with TYPO3 4.5 beta1, on windows XP)

Jens-Sebastian, could you be so kind and provide a patch against a subversion checkout of TYPO3, please?

afraid I'm not able to provide a patch because I don't know how; but I patched the following:

try {
$com = new COM;
if(is_callable(array($com,'GetRandom')) {
$output = base64_decode($com->GetRandom($count, 0));
}
}

I "wrapped" the if() block around the $output-line to make sure the function call won't crash.
I had the same problem on my machine and this fix fixed it.

oh, by the way, when the error reads "Call to undefined method com::GetRandom()" it is not a problem of lacking a registered CAPICOM dll. IF the CAPICOM DLL was not present, it would read "Invalid Syntax" and run into the exception, because new COM throws that error.
I was able to reproduce that; compare http://bugs.php.net/bug.php?id=48498

Reaching the line $output... means that the COM initialisation succeeded, but the lacking function "GetRandom" throws the fatal error.

...just found out how to create a patch file on windows and added it.

I'll have a look at the patch next week.

two of our customers that were having this problem independently confirmed that the patch works.
I also evaluated that the is_callable returns true if the CAPICOM is installed and works.

Found a solution using the new code in .NET for Windows 7 that replaces part of CAPICOM. Looks to work the same as the original.

try {
$com = new COM;
$output = base64_decode($com->GetBytes($count));
} catch (Exception $e) {
// RNGCryptoServiceProvider not installed
}