(1) the process of verifying identity, origin, or lack of modification of a subject or object Authentication of a user is generally based on something the user knows, is, or has (2) the use of some kind of system to ensure that a file or message which purports to come from a given individual or company actually does Many authentication systems are now looking towards public key encryption, and the calculation of a check based upon the contents of the file or message as well as a password or key Related concepts are change detection and integrity
One of the objectives of cryptography: Typically, assurance that a message was sent by the purported author This is message authentication and is sometimes assumed into message integrity It is possible to authenticate individual blocks, provided they are large enough to minimize the impact of adding extra authentication data in each block (see block code) One advantage lies in avoiding the alternative of buffering an entire message before it can be authenticated That can be especially important for real-time (e g , voice) communications Other forms of cryptographic authentication include key authentication for public keys, and source or user authentication, for the authorization to send the message in the first place Also see certification and certification authority
The positive identification of a network entity such as a server, a client, or a user In SSL context, authentication represents the server and client Certificate verification process
The process that verifies the identity of a user, device, or other entity in a computer system, usually as a prerequisite to allowing access to resources in a system The J2EE platform requires three types of authentication: basic, form-based, and mutual, and supports digest authentication
the positive verification of the identity of a user, device, or other entity in a computer system, often as a prerequisite to allowing access to resources in a system
Process of verifying the identity of the user at the other end of a link Authentication is accomplished by using a link key stored in the device memory or by a user PIN (called pairing)
this is the process a computerised service uses to identify who is using it It often involves a username and password or checks the IP address of the PC being used to access it Athens is an example of an authentication system
The process of identifying yourself and the verification that you're who you say you are Computers where restricted information is stored may require you to enter your username and password to gain access
The process of verifying that a particular name really belongs to a particular entity For example, a server will authenticate Alice to ensure that the person at the other end of the network connection isn't Henry the Forger instead In addition to authenticating users, data and computers can be authenticated using cryptographic techniques
validating the authenticity of something or someone a mark on an article of trade to indicate its origin and authenticity
Authentication is how computer systems verify that a person or computer acting on a person's behalf is who or what they claim to be It is a secure and trusted form of identification
To positively verify the identity of a user, device, or other entity in a computer system, often as a prerequisite to allowing access to resources in a system