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Using the Digital Signature Key to Validate a Notification

You can use the digital signature key to verify that the webhook notifications you receive are from
Visa Acceptance Solutions
. Verifying your webhook notifications validates their integrity and helps prevent replay attacks.
When you receive a webhook notification from
Visa Acceptance Solutions
, it contains a digital signature key. You can configure your system to compare the notification's digital signature to the digital signature you created. If both of the digital signatures match, the notification is validated.
Complete these tasks to validate the webhook notifications that you receive:
  1. Create a digital signature key by sending a
    create a digital signature key
    request to
    Visa Acceptance Solutions
    . You may have already completed this requirement while setting up your first webhook subscription. For more information, see Create a Digital Signature Key.
  2. Extract the digital signature from the digital signature key that you created.
  3. Configure your system to compare your digital signature to the digital signatures in the notifications that you receive. A webhook notification is valid if the notification's digital signature matches your digital signature.