Whois & Analysis for standardnotes.org

End-to-end encryption (E2EE) is a system of communication where only the communicating users can read the messages.

In principle, it prevents potential eavesdroppers – including telecom providers, Internet providers, and even the provider of the communication service – from being able to access the cryptographic keys needed to decrypt the conversation.

The systems are designed to defeat any attempts at surveillance and/or tampering because no third parties can decipher the data being communicated or stored.

For example, companies that use end-to-end encryption are unable to hand over texts of their customers' messages to the authorities.

The open-source model is a decentralized development model that encourages open collaboration.

A main principle of open-source software development is peer production, with products such as source code, blueprints, and documentation freely available to the public.

The open-source movement in software began as a response to the limitations of proprietary code.

The model is used for projects such as in open-source appropriate technologies, and open-source drug discovery.

An application program (app or application for short) is a computer program designed to perform a group of coordinated functions, tasks, or activities for the benefit of the user.

Examples of an application include a word processor, a spreadsheet, an accounting application, a web browser, a media player, an aeronautical flight simulator, a console game or a photo editor.

The collective noun application software refers to all applications collectively.

This contrasts with system software, which is mainly involved with running the computer.

In computing, a plug-in (or plugin, add-in, addin, add-on, addon, or extension) is a software component that adds a specific feature to an existing computer program.

When a program supports plug-ins, it enables customization.

The common examples are the plug-ins used in web browsers to add new features such as search-engines, virus scanners, or the ability to use a new file type such as a new video format.

Well-known browser plug-ins include the Adobe Flash Player, the QuickTime Player, and the Java plug-in, which can launch a user-activated Java applet on a web page to its execution on a local Java virtual machine.

SIMPLE, the session initiation protocol for instant messaging and presence leveraging extensions, is an instant messaging (IM) and presence protocol suite based on Session Initiation Protocol (SIP) managed by the Internet Engineering Task Force.

Contrary to the vast majority of IM and presence protocols used by software deployed today, SIMPLE is an open standard like XMPP.