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push authentication

Push authentication is a mobile-centric authentication whereby the service provider sends the user a notification over the most  secure available communication channel. The user responds to the challenge by performing an action to verify their identity and access the service. Push authentication relies on device possession as the dominant factor.

It often is deployed as part of a multi-factor authentication (MFA) solution with additional factors such as knowledge using a device PIN or decentralized PIN, or inheritance using biometrics. Push authentication can be layered on top of a legacy centralized password regime (shared secrets) or it may be used as part of a passwordless system  such as in a solution based upon FIDO architecture (true secrets). 

Example:

“My insurance provider just enabled push-based authentication on my iPhone. Now instead of using passwords to log into the website, I just use a push notification on my phone to approve my login.”

Push Authentication Demo:

Image:

fido_authentication
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