Deferred Event Signature Validation

This operation performs an event-based signature validation on a signature. Signature validation is performed within the event window of the specified deferred event count.

For this operation to succeed, the following administrative tasks should be performed in OneSpan Authentication Server:

1. Register the client application.
2. Define/assign a current event signature validation policy.
3. Define users and assign authenticators supporting event-based transaction authentication.

At a minimum, the authSignature command requires the following set of signature field attributes in order to perform signature validation:

• SIGNFLD_COMPONENT_TYPE
• SIGNFLD_USERID
• SIGNFLD_SIGNATURE
• SIGNFLD_DEFERRED_EVENT_COUNT. The event count used to generate the deferred event signature.

For more information about required and optional signature validation attributes for authSignature, see SOAP signature validation (Overview).

If the transaction authentication is successful, OneSpan Authentication Server will return the verified event counter in the SOAP response. This information will be specified as signature attribute SIGNFLD_VERIFIED_EVENT_VALUE in the resultattribute element.