verify signatures error when using cc

[clblew]

When using payment choice of credit card, user gets the error...

We're sorry, but our payment processor has returned an error, and cannot process this transaction.

Specific error returned: Unable to verify signatures. Please report this to merchant.

Please try this transaction later. If this problem persists, please email us, and we will assist you.


Can do other payment choices just fine, just credit card gives this. any ideas?

Christy Blew

[Jamie]

Hi Christy,

That error is specific to your payment gateway. Which one are you using?

[clblew]

Oops, meant to note that. I am using Cybersource. I contacted them and they said that it had to be with my shopping cart. I followed the set up directions in SquirrelCart for the Cybersource setup.

christy

[tqla]

I know that this was a year ago but I am getting the same problem using Cybersource and SC. How did you fix it? I have a support ticket in but thay havn't got back to me yet.

[Jamie]

Hi,

We will reply to your ticket soon, but for the benefit of others that may have this problem, here's the solution...

After Christy spoke several times with CyberSource support, they indicated that this is a bug in their code, in the HOP.php file that you download from them. It doesn't occur for everyone...just certain PHP installations. Why they have not fixed it after a year is a mystery.

The fix, provided by them, is as follows:
1. Open your cybersource_HOP.php file

2. Find this section of code by searching for "function cybs_sha1":
function cybs_sha1($in) {
$indx = 0;
$chunk = ";

3. Immediately below the "function cybs_sha1($in) { " line, add this:
return pack ("H*", sha1 ($in));

The end result should look something like this:
function cybs_sha1($in) {
return pack ("H*", sha1 ($in));
$indx = 0;
$chunk = ";
// etc....


4. Save the file

[tqla]

It's at line 32 of the HOP file.

[rightminddesign]

I am having the same issue on a cart and making the change listed here (and the other listed in their knowledgebase) does not remove the error.

Any other suggestions?:cool:

[rightminddesign]

This is version 1.6, btw.

[rightminddesign]

And in case anyone else has the same issue, and it does not resolve with the code suggested above, Cybersource recommends then trying this code at line 32:

return mhash (MHASH_SHA1, $in) ;

And your code would then look like this:
function cybs_sha1($in) {
return mhash (MHASH_SHA1, $in) ;
$indx = 0;
$chunk ='''';

Neither of these suggestions helped me, though.:confused:

[aashen]

Having the same issues with Cybersource. Tried both suggestions and neither worked. First suggestion shows same signature error. Second suggestion says "fatal error". Did anybody find a way to resolve this problem? Any suggestions would be greatly appreciated. Would hate to go through the trouble of switching payment gateways.

Thanks,

Anthony

[dansim123]

Hello,

I am having the same problem as Anthony did in that neither script update fixed the problem; I received the exact same error messages using Cybersource.

Has there been any new information on correctly generating a script from Cybersource?

Thanks,
Dan S - WilliamWoodbury.com