OneSpan Sign ID Verification & Authentication

Instantly verify and authenticate signers’ identities – wherever they are

Secure access to your documents with strong ID verification and authentication 

OneSpan Sign offers a range of ID verification and authentication options, so you can get documents electronically signed with confidence. You have the flexibility to choose the level of security you need.

We help ensure your agreements are safely accessed and signed only by the individuals they’re intended for with options including SMS, Q&A, knowledge-based (KBA), and government ID checks.

OneSpan Sign

ID verification and authentication options are fully integrated with OneSpan Sign, enabling your signers to verify their identities prior to accessing agreements


ID Verification


Biometric Verification

Mobile device with a thumbprint and a one-time password

SMS Authentication

Process Efficiency

Knowledge-based Authentication (KBA)

Document Security

Certificate-based IDs

ID Verification

Enhanced authentication using government photo IDs

For the highest level of signer identification, OneSpan Sign’s ID verification option quickly determines whether the signer’s government photo ID is authentic. 

Allow your signers to take a photo of their passport, driver’s license, or other government-issued IDs directly from their mobile device. Machine learning algorithms analyze the authenticity and validity of the photo ID to determine whether the ID document is genuine.

Market Guide for Electronic Signature Report
Analyst Report

Gartner Market Guide for Electronic Signature | OneSpan Listed as a Representative Vendor

Get your copy of the Market Guide for Electronic Signature Report to find out why, with compliments from OneSpan.

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Biometric Verification

Ensure signers are who they say they are

For a higher level of security and confidence, pair ID verification with the biometric comparison option. Signers are asked to take a "selfie" with the camera on their mobile device. Advanced algorithms extract biometric data from the image and compare it to the image on the authenticated ID document to determine whether the signer is genuine.​ 

Liveness detection involves the signer performing an action, for example blinking or moving their head, to prove that they are genuinely present and that a static image or video is not used fraudulently.

Why a connected signing and identification experience matters


of mid‑sized FIs

are digitizing their account opening processes* 


of customers 

abandon account opening processes during the qualification stage*


of organizations

will be using document verification as part of their onboarding workflows by 2022**


SMS Authentication​

Add a layer of security to your consumer-facing transactions​

OneSpan Sign generates a one-time PIN that is sent to the signer’s phone. The signer enters it into a login page and gains access to the documents that require signatures. ​


Present challenge questions to your signer before they can view documents

These questions are referred to as “shared secrets”, because the sender needs to know something about the signer to create the questions. The questions and answers are known by both parties and pre-selected ahead of time. Common questions include the last four digits of a Social Security Number (SSN) or an application ID number. The signer must correctly answer one or more questions before being granted access to the electronic documents that require signature.

Knowledge-based Authentication (KBA)

Dynamic “out-of-wallet” questions to prove a signer’s identity

OneSpan Sign can connect to third-party credit bureaus to obtain a multiple choice questionnaire that is generated on-the-fly and presented to the signer. These out-of-wallet questions are generated in real-time, making it difficult for anyone other than the actual user to answer correctly.

Knowledge Based Authentication

Certificate-based IDs

Use personal digital certificates to verify the identity of signers

OneSpan Sign can leverage local and remote digital certificates issued by trusted authorities and partners to verify the identity of signers at the point of signing. When using a personal digital certificate to e-sign a document, OneSpan Sign verifies the certificate’s status and the action requires a PIN or password to complete the signing process. 

When using a digital certificate issued by a qualified Trust Service Provider (TSP), this creates a Qualified E-Signature (QES) in accordance with the requirements of the European Union’s eIDAS regulation.

What customers are saying about OneSpan Sign

From a customer onboarding perspective, we are now able to take the customer through a consistent journey. We know that they're getting the information that they need to see and that they're passing through compliance and KYC processes. I think the customer experience is much, much improved to what it was with our paper-based system.

motonovo logo

Dave Briggs

Chief Operating Officer, MotoNovo Finance

OneSpan Sign ID Verification & Authentication Solutions

OneSpan-provided identification methods

Signer identification before accessing documents for signing

  • ID verification
  • Biometric verification
  • Email
  • Q&A
  • Knowledge-based authentication (KBA)
  • Single Sign-on (SSO)

Trusted partner-provided identification methods

Signer identification at the point of signing using local and remote digital certificates

  • U.S. Government smart cards
  • European IDs
  • Certificate-based IDs from our Trust Service Provider (TSP) partners. Learn more about Qualified E-Signatures.

ID verification and authentication options are available as add-ons to OneSpan Sign plans.

Contact us today to find the best option for your business.

*2020 Cornerstone Advisors Research Report
**Gartner Market Guide for Identity Proofing and Affirmation, 2020 

The information on this site is for informational purposes only and does not constitute legal advice. We recommend that you seek independent professional advice. OneSpan does not accept liability for the contents of these materials.