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In computer science, a session identifier, session ID or session token is a piece of data that is used in network communications (often over HTTPS) to identify a session, a series of related message exchanges. Session identifiers become necessary in cases where the communications infrastructure uses a stateless protocol such as HTTP.
Session (computer science) In computer science and networking in particular, a session is a time-delimited two-way link, a practical (relatively high) layer in the TCP/IP protocol enabling interactive expression and information exchange between two or more communication devices or ends – be they computers, automated systems, or live active ...
Session IDs, also known as session tokens, are one mechanism that can be used to help avoid replay attacks. The way of generating a session ID works as follows. Bob sends a one-time token to Alice, which Alice uses to transform the password and send the result to Bob. For example, she would use the token to compute a hash function of the ...
Session hijacking. In computer science, session hijacking, sometimes also known as cookie hijacking, is the exploitation of a valid computer session —sometimes also called a session key —to gain unauthorized access to information or services in a computer system. In particular, it is used to refer to the theft of a magic cookie used to ...
Cross-site request forgery, also known as one-click attack or session riding and abbreviated as CSRF (sometimes pronounced sea-surf [1]) or XSRF, is a type of malicious exploit of a website or web application where unauthorized commands are submitted from a user that the web application trusts. [2] There are many ways in which a malicious ...
Access token. In computer systems, an access token contains the security credentials for a login session and identifies the user, the user's groups, the user's privileges, and, in some cases, a particular application. [1] In some instances, one may be asked to enter an access token (e.g. 40 random characters) rather than the usual password (it ...
Transport Layer Security ( TLS) is a cryptographic protocol designed to provide communications security over a computer network. The protocol is widely used in applications such as email, instant messaging, and voice over IP, but its use in securing HTTPS remains the most publicly visible. The TLS protocol aims primarily to provide security ...
JSON Web Token. JSON Web Token ( JWT, suggested pronunciation / dʒɒt /, same as the word "jot" [ 1]) is a proposed Internet standard for creating data with optional signature and/or optional encryption whose payload holds JSON that asserts some number of claims. The tokens are signed either using a private secret or a public/private key .