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Surespot
Surespot was a free open-source instant messaging application for Android and iOS with a focus on privacy and security. It was shut down on July 31, 2022. Features The application supported the sending of text, pictures, audio messages (in the past only after an in-app purchase), and Emoji icons. It also supported the deletion of messages from the receiving device. It allowed user blocking. There was no support for group messages and sending files other than photos. Surespot provided offline backup via iTunes (PC or Mac) on the iOS version, or to local device storage on the Android version. For secure communication, Surespot used end-to-end encryption by default. 256-bit AES-GCM encryption was used, with keys created with 512-bit ECDH. App users could use multiple identities, for instance for private or business use. Surespot was donationware. Reception As of November 4, 2014, Surespot had a score of 5 out of 7 points on the Electronic Frontier Foundation secure messagi ...
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GNU General Public License
The GNU General Public License (GNU GPL or simply GPL) is a series of widely used free software licenses that guarantee end user In product development, an end user (sometimes end-user) is a person who ultimately uses or is intended to ultimately use a product. The end user stands in contrast to users who support or maintain the product, such as sysops, system administrat ...s the Four Freedoms (Free software), four freedoms to run, study, share, and modify the software. The license was the first copyleft for general use and was originally written by the founder of the Free Software Foundation (FSF), Richard Stallman, for the GNU Project. The license grants the recipients of a computer program the rights of the Free Software Definition. These GPL series are all copyleft licenses, which means that any derivative work must be distributed under the same or equivalent license terms. It is more restrictive than the GNU Lesser General Public License, Lesser General Public License ...
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Donationware
Donationware is a licensing model that supplies fully operational unrestricted software to the user and requests an optional donation be paid to the programmer or a third-party beneficiary (usually a non-profit). The amount of the donation may also be stipulated by the author, or it may be left to the discretion of the user, based on individual perceptions of the software's value. Since donationware comes fully operational (i.e. not crippleware/freemium) when payment is optional, it is a type of freeware. History An example of donationware is the 1987 Atari ST video game '' Ballerburg'', whose programmer distributed the game for free but asked for a donation, offering as incentive the source code for the game.April 1987: Ballerburg - Zwei Spieler, zwei Burgen und ein Berg dazwischen...
on ...
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IOS Software
iOS (formerly iPhone OS) is a mobile operating system created and developed by Apple Inc. exclusively for its hardware. It is the operating system that powers many of the company's mobile devices, including the iPhone; the term also includes the system software for iPads predating iPadOS—which was introduced in 2019—as well as on the iPod Touch devices—which were discontinued in mid-2022. It is the world's second-most widely installed mobile operating system, after Android. It is the basis for three other operating systems made by Apple: iPadOS, tvOS, and watchOS. It is proprietary software, although some parts of it are open source under the Apple Public Source License and other licenses. Unveiled in 2007 for the first-generation iPhone, iOS has since been extended to support other Apple devices such as the iPod Touch (September 2007) and the iPad (introduced: January 2010; availability: April 2010.) , Apple's App Store contains more than 2.1 million iOS ...
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Android (operating System) Software
Android may refer to: Science and technology * Android (robot), a humanoid robot or synthetic organism designed to imitate a human * Android (operating system), Google's mobile operating system ** Bugdroid, a Google mascot sometimes referred to as “Android” * Android (drug), a brand name for the synthetic hormone methyltestosterone Arts and entertainment Film * '' Android Kunjappan Version 5.25'', a 2019 film directed by Ratheesh Balakrishnan Poduval * ''Android'' (film), a 1982 film directed by Aaron Lipstadt * ''Android'', the Russian title for the 2013 film ''App'' Music * The Androids, an Australian rock band * "Android" (TVXQ song), 2012 * "Android", a song by Green Day from the album '' Kerplunk'' * "Android", a song on The Prodigy's ''What Evil Lurks'' EP Games * ''Android'' (board game), published by Fantasy Flight Games Other uses in arts and entertainment * The Android (DC Comics), character * ''The Android'' (novel), by K. A. Applegate * Android 17, a c ...
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Instant Messaging Clients
Instant messaging (IM) technology is a type of online chat allowing real-time text transmission over the Internet or another computer network. Messages are typically transmitted between two or more parties, when each user inputs text and triggers a transmission to the recipient(s), who are all connected on a common network. It differs from email in that conversations over instant messaging happen in real-time (hence "instant"). Most modern IM applications (sometimes called "social messengers", "messaging apps" or "chat apps") use push technology and also add other features such as emojis (or graphical smileys), file transfer, chatbots, voice over IP, or video chat capabilities. Instant messaging systems tend to facilitate connections between specified known users (often using a contact list also known as a "buddy list" or "friend list"), and can be standalone applications or integrated into e.g. a wider social media platform, or a website where it can for instance be used f ...
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GitHub
GitHub, Inc. () is an Internet hosting service for software development and version control using Git. It provides the distributed version control of Git plus access control, bug tracking, software feature requests, task management, continuous integration, and wikis for every project. Headquartered in California, it has been a subsidiary of Microsoft since 2018. It is commonly used to host open source software development projects. As of June 2022, GitHub reported having over 83 million developers and more than 200 million repositories, including at least 28 million public repositories. It is the largest source code host . History GitHub.com Development of the GitHub.com platform began on October 19, 2007. The site was launched in April 2008 by Tom Preston-Werner, Chris Wanstrath, P. J. Hyett and Scott Chacon after it had been made available for a few months prior as a beta release. GitHub has an annual keynote called GitHub Universe. Org ...
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Comparison Of Instant Messaging Clients
The landscape for instant messaging involves cross-platform instant messaging clients that can handle one or multiple protocols. Clients that use the same protocol can typically federate and talk to one another. The following table compares general and technical information for cross-platform instant messaging clients in active development, each of which have their own article that provide further information. __TOC__ General Operating system support Connectivity Privacy Some messaging services that are not designed for privacy require a unique phone number for sign-up, as a form of identity verification and to prevent users from creating multiple accounts. Some messaging services that do not solely focus on a mobile-first experience, or enforce SMS authentication, may allow email addresses to be used for sign-up instead. Some messaging services offer greater flexibility and privacy, by allowing users to create more than one account to compartmentalize personal & work ...
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Channel 4 News
''Channel 4 News'' is the main news programme on British television broadcaster Channel 4. It is produced by ITN, and has been in operation since Channel 4's launch in November 1982. Current productions ''Channel 4 News'' ''Channel 4 News'' is the name of Channel 4's award-winning flagship evening news programme. The editor is Esme Wren, appointed in 2022. The programme is presented by Krishnan Guru-Murthy, Cathy Newman, Matt Frei and Fatima Manji and is on the air Monday to Thursday from 7:00 to 7:55 pm, Friday from 7:00 to 7:30 pm, and at variable times at weekends. Alex Thomson is the chief correspondent. ''Channel 4 News'' is among the highest-rated television programmes in the United Kingdom, winning a record five Royal Television Society Television Awards in February 2006. These included TV Journalist of the Year for Jon Snow, Home News Award for the Attorney-General leak, and the International News Award for Congo's Tin Soldiers. It won the News Cover ...
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Forward Secrecy
In cryptography, forward secrecy (FS), also known as perfect forward secrecy (PFS), is a feature of specific key agreement protocols that gives assurances that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. For HTTPS, the long-term secret is typically the private key of the server. Forward secrecy protects past sessions against future compromises of keys or passwords. By generating a unique session key for every session a user initiates, the compromise of a single session key will not affect any data other than that exchanged in the specific session protected by that particular key. This by itself is not sufficient for forward secrecy which additionally requires that a long-term secret compromise does not affect the security of past session keys. Forward secrecy protects data on the transport layer of a network that uses common Transport Layer Security protocols, including OpenSSL, when its long-term secret keys are c ...
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Electronic Frontier Foundation
The Electronic Frontier Foundation (EFF) is an international non-profit digital rights group based in San Francisco, California. The foundation was formed on 10 July 1990 by John Gilmore, John Perry Barlow and Mitch Kapor to promote Internet civil liberties. The EFF provides funds for legal defense in court, presents ''amicus curiae'' briefs, defends individuals and new technologies from what it considers abusive legal threats, works to expose government malfeasance, provides guidance to the government and courts, organizes political action and mass mailings, supports some new technologies which it believes preserve personal freedoms and online civil liberties, maintains a database and web sites of related news and information, monitors and challenges potential legislation that it believes would infringe on personal liberties and fair use and solicits a list of what it considers abusive patents with intentions to defeat those that it considers without merit. History ...
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Open-source Software
Open-source software (OSS) is computer software that is released under a license in which the copyright holder grants users the rights to use, study, change, and distribute the software and its source code to anyone and for any purpose. Open-source software may be developed in a collaborative public manner. Open-source software is a prominent example of open collaboration, meaning any capable user is able to participate online in development, making the number of possible contributors indefinite. The ability to examine the code facilitates public trust in the software. Open-source software development can bring in diverse perspectives beyond those of a single company. A 2008 report by the Standish Group stated that adoption of open-source software models has resulted in savings of about $60 billion per year for consumers. Open source code can be used for studying and allows capable end users to adapt software to their personal needs in a similar way user scripts ...
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