Definition of authentication in US English:



  • 1The process or action of proving or showing something to be true, genuine, or valid.

    ‘the prints will be stamped with his seal and accompanied by a letter of authentication’
    count noun ‘the authentications were both carried out by the Investigation Bureau of the Ministry of Justice’
    • ‘Stamped in red ink in a vertical line down its center was the check's authentication: ORIGINAL.’
    • ‘The gallery director agrees that DNA's certitude in authentication provides the basis for a better risk-management equation for art insurance.’
    • ‘Signature authentication takes great experience and expertise and should be left to experts.’
    • ‘On the threat level, our considerations depend on what the outcome of the authentication is.’
    • ‘Because authentication of artifacts is not the museum's legal business, we only offer an academic inquiry service.’
    • ‘Harris Tweed is protected by a raft of laws, stamps, and authentications that would make any copyright pirate balk.’
    • ‘They have announced the authentication of a miracle attributed to the Albanian-born nun.’
    • ‘For those concerned about identification and authentication of famous original art, catalogues raisonnés are invaluable resources.’
    • ‘The fee for authentication of a document is $32.00.’
    • ‘His reputation was ruined by his authentication of a forged 60-volume diary.’
    1. 1.1Computing The process or action of verifying the identity of a user or process.
      ‘user authentication for each device ensures that the individual using the device is recognized by the company’
      count noun ‘passwords and authentications are necessary parts of system security’
      • ‘For mobile users, firewalls allow remote access into private networks by the use of secure logon procedures and authentication certificates.’
      • ‘Their director of wireless believes that end-to-end authentication could be a greater concern than end-to-end encryption.’
      • ‘Authentication is usually achieved using password security, with the option of more advanced security where required.’
      • ‘Secure login authentication should be employed to keep out unwanted visitors.’
      • ‘One of the strengths of our email system is its ability to do online authentication.’
      • ‘An example of strong authentication that we are all familiar with is our ATM card.’
      • ‘Because network authentications aren't frequently refreshed, an attacker could make expensive premium rate calls and bill them to other persons.’
      • ‘The system has a large range of authentication options.’
      • ‘Users can update applications securely with authentication enabled through digital signatures.’
      • ‘In simplest terms, authentication technologies ensure that individuals are who they claim to be.’