Patent attributes
The present teaching relates to method, system, medium, and implementations for authenticating a user. An authentication session is initiated to authenticate, via iris, a person claiming to be an authorized user. An obfuscation configuration is retrieved with respect to the authorized user and used to determine a sub-obfuscation configuration in accordance with information associated with the authentication session. A set of expected features associated with the sub-obfuscation configuration is obtained. One or more pictures are captured from the iris of the person who is expected to carry out at least one obfuscation measure consistent with the sub-obfuscation configuration for the authorized user in accordance with the information related to the authentication session and are used to determine whether the person is live based on the set of expected features associated with the sub-obfuscation configuration.
