Two-factor authentication

Summary

• Two-factor authentication (T-FA) is any authentication protocol that requires two independent ways to establish identity and privileges. This contrasts with traditional password authentication, which requires only one 'factor' (knowledge of a password) in order to gain access to a system.

Similar Topics

• Mutual authentication
• Email authentication
• Digest access authentication
• Authentication
• Violin Authentication
• Key authentication
• Data Authentication Code
• Initiative For Open Authentication
• Closed-loop authentication
• Fingerprint authentication

Related Topics

• None

  * This page is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Two-factor authentication".