Visa International Service Association

Pawel Chrobok

Christian Aabye

Alexandre Pierre

A method is disclosed. The method includes receiving, by an access control server, an authentication request message comprising a credential or a token from an access device, after the access device receives the credential or the token from a portable device of a user. The method also includes responsive to receiving the authentication request message, transmitting, by the access control server, a challenge message to a user device associated with the user; generating, by the access control server, an authentication indicator. The method also includes transmitting, by the access control server, an authentication response message including the authentication indicator to the access device.

Growing community of inventors

Alameda, CA, United States of America

Pawel Chrobok