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What does each authentication status mean in VeriScan?

The ID Authentication tier of VeriScan uses IDScan's proprietary authentication engine to verify the authenticity of identity documents.  This process runs a series of individual tests against the scanned document images, and provides a result for each test.  These results are combined into an overall authentication status.  This article explains what each status means at both levels.

Individual Test Results

The following results are based on a comparison of the test score versus a specific confidence threshold.  These thresholds and scoring values are proprietary information which is not shared.

The Authentication Strictness Level (Friendly, Balanced, Strict) also affects the individual test results.

Each authentication test produces one of four statuses: Passed, Failed, Warning, or Skipped.

Passed

The document's score met or exceeded the threshold.  The document satisfied this test.

Failed

The document's score fell below the threshold, and the authentication strictness level has this test configured as "required."  A failed result is weighted such that it affects the overall authentication status.

Warning

The document's score fell below the threshold; however, the authentication strictness level has this test configured as "not required."  A warning result indicates the check raised a concern, but it is not weighted to affect the overall authentication status.

Skipped

The test did not run.  This can occur for two reasons:

  • Strictness: The authentication strictness level has this test configured to be disabled entirely.
  • Document: This specific document series or type is on the exclusion list for this test, meaning the test is not applicable to that document.

Overall Authentication Status

The overall authentication status combines the result of all individual tests with additional business logic.  The overall result will also be one of four values: Passed, Failed, Warning, or Skipped.

Passed

All applicable and required tests passed.  A passed overall status can include individual tests which were Skipped or Warning.

Failed

One or more tests configured to affect the overall status failed.  The Scan Quality test family can convert this status to a Warning status as described below - unless Barcode Security or MRZ Security fail, in which case the status remains Failed.

Warning

One or more individual tests failed, but the Scan Quality test family has produced warning results.  The Scan Quality test family includes:

  • Image Quality
  • Blur Detection
  • Sharpness
  • Cropping
  • Proportions

When any of these scan quality tests are flagged with a warning result, it indicates that the scan itself may be unreliable; therefore, the results of the other tests may also be unreliable.  In these cases, VeriScan converts the overall status of Failed into Warning to reflect this uncertainty.

Important limitations of this logic:

    • The overall status change only applies to the Balanced and Friendly strictness levels.  When using Strict, failed tests will result in an overall Failed status regardless of scan quality warnings.
    • Barcode Security and MRZ Security test failures override this logic.  Even if scan quality warnings are present, a failure of either of these tests results in an overall Failed status.

Skipped

This overall status is has four distinct scenarios when it can occur:

  1. Manual or log entry: The user recorded a history entry in VeriScan without physically scanning a document.  Authentication has no document images to run tests on producing a Skipped status.
  2. Unrecognized document: The document was scanned and contains a barcode or MRZ, but the template detection model returned a result indicating too low confidence for the detected template - meaning the document could not be identified or is of too low quality.  Authentication cannot proceed without an identified template, and this results in an overall Skipped status.
  3. Authentication disabled on the device: The account is at the ID Authentication tier, but authentication has been disabled for that specific licensed device from the VeriScan Cloud back-end portal.  Authentication is not attempted resulting in an overall Skipped status.
  4. Authentication error: An error occurred during authentication causing the application to crash before returning a result to VeriScan.  In this case, there is technically no result from the authentication engine; however, VeriScan displays an overall Skipped status.

An overall status of Skipped can be for very different reasons from a deliberate operator action to a configuration decision to a technical failure.  Context from the session or device logs may be needed to determine which scenario applies in a given case.