autentimine mitme eri tüüpi identsustõendiga - näiteks kiipkaardi, parooli ja biomeetrikuga
a method of authentication that requires at least two different authentication factors; typically something you know (username/password) and something that you have (a token or cell-phone) or something that you are (a biometric)
Authentication is the provision of assurance of the claimed identity of an entity. In case of user authentication, users are identified either by knowledge (e.g., a secret such as a password or a PIN), by possession (e.g., a physical token), or by a personal characteristic (e.g., biometrics such as a fingerprint or face geometry). Two-factor authentication is based on two independent factors, for example, a passport with a fingerprint. Multifactor authentication hence means two or more of the authentication factors required for being authenticated.
