today i got a message to update my Magento Shop with a new patch (MD5 Algorithm to SHA). How can i check, if my shop needs that update too? I never heard about "Authorize.Net Direct Post payment method".

Currently I am using "SaferPay" and Authorize.Net is not showing up for payment methods. So im not using it?!

Thank you Chris

  • Hello @Christian, did you check my answer ?
    – Pawan
    Mar 16, 2019 at 16:41

1 Answer 1


Earlier Authorize.net using MD5 as a encryption algorithm. Now they are upgrading and going with Signature Key (SHA-512) encryption.

As, all existing Magento using earlier encryption, So all Magento need to Patch (Replace some files) to correctly working of Authorize.net as a payment method.

If you not using Authorize.net as payment method (also planning not to be use in future): Don't do anything just ignore this message

If you are using it, you need to apply patch as per official given document.

  • does this issue affect the "Authorize.net" payment method that's in Mage_Paygate? I think they are different and separate but would like some confirmation. Thanks!
    – User007
    Mar 5, 2019 at 21:24

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