topic Re: Can I generate my own value for x_fp_hash using the DPM API? in Integration and Testing

Can I generate my own value for x_fp_hash using the DPM API?

blewtllc1 — Thu, 06 Oct 2011 14:26:06 GMT

Howdy!

I'm using the DPM API, but instead of using the DPM function to generate the credit card form, I'm building it out myself.

For the hidden form field x_fp_hash, is there a way that I can generate this myself? I know it's a combined hash of several items, I'm just not sure how it could be created from scratch.

I'm using PHP on the back end. I have access to all of the variables that go into this hash, I'm just not sure of the correct order or method to generate it.

Thanks for your time,

Steve

Re: Can I generate my own value for x_fp_hash using the DPM API?

blewtllc1 — Thu, 06 Oct 2011 15:05:46 GMT

I think I just found the answer to my own question. I can use the getFingerprint function in the SIM api file to generate this on my own.

Unfortunately I don't have mhash as part of my PHP compile. Anyone know of any quick ways to add that, or alternative solutions?

Steve

Re: Can I generate my own value for x_fp_hash using the DPM API?

TJPride — Fri, 07 Oct 2011 03:41:00 GMT

It's expecting the fingerprint to be encrypted with those functions, so if you don't have them, you're up a creek without a paddle (unless you're a mathematician and capable of recreating them somehow - but an interpreted version is going to be very inefficient). That leaves recompiling PHP, which is definitely a non-trivial task, and something you shouldn't attempt unless you have experience as a server admin or can get specific instructions from one for your OS and web manager (Apache?) Have you considered a third option, just moving the site to hosting that does have mhash already?