What is authentication?

  • (noun): Validating the authenticity of something or someone.
    Synonyms: certification
    See also — Additional definitions below


Authentication (from Greek: αὐθεντικός; real or genuine, from αὐθέντης authentes; author) is the act of confirming the truth of an attribute of a datum or entity. This might involve confirming the identity of a person or software program, tracing the origins of an artifact, or ensuring that a product is what its packaging and labeling claims to be.

Read more about Authentication.

Some articles on authentication:

SSDG - PKI Implementation
... Two layered implementation for Authentication, Authorization, Integrity security Client Authentication (bi-directional) SSL for security during communication W3C XML signature based authentication ...
Secure Network Communications
... Netweaver system architecture that enables the use of stronger authentication, encryption and single sign-on mechanism ... which include the SAP authorization concept and user authentication based on passwords ... include the additional protection offered by stronger authentication methods, by encryption and by single sign-on ...
Authentication - Access Control
... One familiar use of authentication and authorization is access control ... Access to it is therefore usually controlled by insisting on an authentication procedure to establish with some degree of confidence the identity of the user, granting privileges established for that identity ... Common examples of access control involving authentication include Asking for photoID when a contractor first arrives at a house to perform work ...
Location-based Authentication - Challenges
... no offered technical solution for simple location based authentication includes a method for limiting the granted access to the presence, hence ... limiting the granted time for access combining the method with another specially suited authentication factor ...

More definitions of "authentication":

  • (noun): A mark on an article of trade to indicate its origin and authenticity.
    Synonyms: hallmark, assay-mark