An authentication system is disclosed here to locally store and authenticate user data associated with a user. The authentication system comprises a biometric engine, a local database, a requesting module, and an authentication engine. The biometric engine stores biometric identification of the user for registration, which is retrieved using a user owned mobile device. The local database stores the user data associated with the user after the registration, and is in communication with the biometric engine via a client application. The requesting module is in communication with a processor to request an authentication of the user data, which is accepted if the request matches the identified user data. The authentication engine authenticates the user data by verifying the user data against one or more of the biometric identifications, and generate an authentication message that is sent to a proprietor that requests for the authentication of the user data.