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RBS Worldpay MD5 forthcoming Update


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Rbs worldpay are making some changes the end of May this year.

has anyone any idea what i/we need to do so our worldpay modules still

work after this update?

 

I have copied this text from thier website.

 

RBS WorldPay has made an enhancement to MD5, a security feature which prevents unauthorised tampering of the transaction submission parameters sent by merchants using the HTML Redirect service (formerly Select Junior). This is an essential change, which is being made to improve the security of our payment service.

 

If you currently use this feature you will need to make some small changes to your payment service. These will depend on how your system currently generates MD5 signatures. For further information about the different methods of producing signatures and guidance on the specific changes you need to make, please read this news page.

 

Please note that it is important that these are made by the 31st of May 2011 in order to continue with your current method of using MD5

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