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Gravatar
Gravatar (a portmanteau of ''globally recognized avatar'') is a service for providing globally unique avatars and was created by Tom Preston-Werner. Since 2007, it has been owned by Automattic, having integrated it into their WordPress.com blogging platform. Designs On Gravatar, users can register an account based on their email address, and upload a digital avatar to be associated with the account. Gravatar plugins are available for popular blogging software; when the user posts a comment on such a blog that requires an email address, the blogging software checks whether that email address has an associated avatar at Gravatar. If so, the Gravatar is shown along with the comment. Gravatar support is provided natively in WordPress as of v2.5 and in web based project management application Redmine beginning with version 0.8. Support for Gravatar is also provided via third-party modules for web content management systems such as Drupal and MODX. A Gravatar image can be up to 204 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tom Preston-Werner
Thomas Preston-Werner (born May 27, 1979) is an American billionaire software developer and entrepreneur. He is an active contributor within the free and open-source software community, most prominently in the San Francisco Bay Area, where he lives. He is best known as the founder and former CEO of GitHub, a Git repository web-based hosting service, which he co-founded in 2008 with Chris Wanstrath and P. J. Hyett. He resigned from GitHub in 2014 when an internal investigation concluded that he and his wife harassed an employee. Preston-Werner is also the creator of the avatar service Gravatar, the TOML configuration file format, the static site generator software Jekyll, and the Semantic Versioning Specification (SemVer). Early life Preston-Werner grew up in Dubuque, Iowa. His father died when he was a child. His mother was a teacher and his stepfather was an engineer. He graduated high school at Dubuque Senior High School and attended Harvey Mudd College in Claremont, C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automattic
Automattic Inc. is an American global distributed company which was founded in August 2005 and is most notable for WordPress.com (a freemium blogging service), as well as its contributions to WordPress (an open source blogging software). The company's name is a play on founder Matt Mullenweg's first name and automatic. Automattic raised US$846 million in six funding rounds. The last round of US$288 million was closed in February 2021. A subsequent private stock buyback valued the company at US$7.5 billion. The company had 1,930 employees as of March 2022. Its remote working culture was the topic of a participative journalism project by Scott Berkun, resulting in the 2013 book ''The Year Without Pants: WordPress.com and the Future of Work''. CEO Matt Mullenweg allows company employees to work from wherever they want, whenever they want. History On January 11, 2006, it was announced that Toni Schneider would be leaving Yahoo! to become CEO of Automattic. He was previously CEO ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
QR Code
A QR code (an initialism for quick response code) is a type of matrix barcode (or two-dimensional barcode) invented in 1994 by the Japanese company Denso Wave. A barcode is a machine-readable optical label that can contain information about the item to which it is attached. In practice, QR codes often contain data for a locator, identifier, or tracker that points to a website or application. QR codes use four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji) to store data efficiently; extensions may also be used. The quick response system became popular outside the automotive industry due to its fast readability and greater storage capacity compared to standard UPC barcodes. Applications include product tracking, item identification, time tracking, document management, and general marketing. A QR code consists of black squares arranged in a square grid on a white background, including some fiducial markers, which can be read by an imaging device suc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VCard
vCard, also known as VCF (Virtual Contact File), is a file format standard for electronic business cards. vCards can be attached to e-mail messages, sent via Multimedia Messaging Service (MMS), on the World Wide Web, instant messaging, NFC or through QR code. They can contain name and address information, phone numbers, e-mail addresses, URLs, logos, photographs, and audio clips. vCard is used as data interchange format in smartphone contacts, personal digital assistants (PDAs), personal information managers (PIMs) and customer relationship management (CRMs). To accomplish these data interchange applications, other "vCard variants" have been used and proposed as "variant standards", each for its specific niche: XML representation, JSON representation, or web pages. An unofficial vCard Plus format makes use of a URL to a customized landing page with all the basic information along with a profile photo, geographic location, and other fields. This can also be saved as a conta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JSON
JSON (JavaScript Object Notation, pronounced ; also ) is an open standard file format and data interchange format that uses human-readable text to store and transmit data objects consisting of attribute–value pairs and arrays (or other serializable values). It is a common data format with diverse uses in electronic data interchange, including that of web applications with servers. JSON is a language-independent data format. It was derived from JavaScript, but many modern programming languages include code to generate and parse JSON-format data. JSON filenames use the extension .json. Any valid JSON file is a valid JavaScript (.js) file, even though it makes no changes to a web page on its own. Douglas Crockford originally specified the JSON format in the early 2000s. He and Chip Morningstar sent the first JSON message in April 2001. Naming and pronunciation The 2017 international standard (ECMA-404 and ISO/IEC 21778:2017) specifies "Pronounced , as in 'Jason and The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HCard
hCard is a microformat for publishing the contact details (which might be no more than the name) of people, companies, organizations, and places, in HTML, Atom, RSS, or arbitrary XML. The hCard microformat does this using a 1:1 representation of vCard (RFC 2426) properties and values, identified using HTML classes and ''rel'' attributes. It allows parsing tools (for example other websites, or Firefox's Operator extension) to extract the details, and display them, using some other websites or mapping tools, index or search them, or to load them into an address-book program. In May 2009, Google announced that they would be parsing the hCard, hReview and hProduct microformats, and using them to populate search-result pages. In September 2010 Google announced their intention to surface hCard, hReview information in their local search results. In February 2011, Facebook began using hCard to mark up event venues. Example Consider the HTML: Joseph Doe Joe The Example Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Have I Been Pwned?
Have I Been Pwned? (HIBP; with " Pwned" pronounced like "poned", and stylized in all lowercase as "';--have i been pwned?" on the website) is a website that allows Internet users to check whether their personal data has been compromised by data breaches. The service collects and analyzes hundreds of database dumps and pastes containing information about billions of leaked accounts, and allows users to search for their own information by entering their username or email address. Users can also sign up to be notified if their email address appears in future dumps. The site has been widely touted as a valuable resource for Internet users wishing to protect their own security and privacy. Have I Been Pwned? was created by security expert Troy Hunt on 4 December 2013. As of June 2019, Have I Been Pwned? averages around one hundred and sixty thousand daily visitors, the site has nearly three million active email subscribers and contains records of almost eight billion accounts. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CMU Software Engineering Institute
The Software Engineering Institute (SEI) is an American research and development center headquartered in Pittsburgh, Pennsylvania. Its activities cover cybersecurity, software assurance, software engineering and acquisition, and component capabilities critical to the United States Department of Defense. Authority The Carnegie Mellon Software Engineering Institute is a federally funded research and development center headquartered on the campus of Carnegie Mellon University in Pittsburgh, Pennsylvania, United States. The SEI also has offices in Washington, DC; Arlington County, Virginia; and Los Angeles, California. The SEI operates with major funding from the U.S. Department of Defense. The SEI also works with industry and academia through research collaborations. On November 14, 1984, the U.S. Department of Defense elected Carnegie Mellon University as the host site of the Software Engineering Institute. The institute was founded with an initial allocation of $6 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graphics Processing Units
A graphics processing unit (GPU) is a specialized electronic circuit designed to manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device. GPUs are used in embedded systems, mobile phones, personal computers, workstations, and game consoles. Modern GPUs are efficient at manipulating computer graphics and image processing. Their parallel structure makes them more efficient than general-purpose central processing units (CPUs) for algorithms that process large blocks of data in parallel. In a personal computer, a GPU can be present on a video card or embedded on the motherboard. In some CPUs, they are embedded on the CPU die. In the 1970s, the term "GPU" originally stood for ''graphics processor unit'' and described a programmable processing unit independently working from the CPU and responsible for graphics manipulation and output. Later, in 1994, Sony used the term (now standing for ''graphics processing unit'') i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hashcat
Hashcat is a password recovery tool. It had a proprietary code base until 2015, but was then released as open source software. Versions are available for Linux, OS X, and Windows. Examples of hashcat-supported hashing algorithms are LM hashes, MD4, MD5, SHA-family and Unix Crypt formats as well as algorithms used in MySQL and Cisco PIX. Hashcat has been publicly noticed because of its optimizations; partly based on flaws in other software discovered by the creator of hashcat. An example was a flaw in 1Password's password manager hashing scheme. It has also been compared to similar software in a Usenix publication and been described on Ars technica. Variants Previously, two variants of hashcat existed: * hashcat - CPU-based password recovery tool * oclHashcat/cudaHashcat - GPU-accelerated tool (OpenCL or CUDA) With the release of hashcat v3.00, the GPU and CPU tools were merged into a single tool called hashcat. The CPU-only version became hashcat-legacy. Both CPU and GPU n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rainbow Table
A rainbow table is an efficient way to store data that has been computed in advance to facilitate cracking passwords. To protect stored passwords from compromise in case of a data breach, organizations avoid storing them directly, instead transforming them using a scrambling function – typically a cryptographic hash. One line of attack against this protection is to precompute the hashes of likely or possible passwords, and then store them in a dataset. However, such a dataset can become too big as the range of possible passwords grows. Rainbow tables address this problem by storing chains of possible passwords to save space. Undoing the chains takes significant computation time, but overall this tradeoff makes certain classes of attacks practical. Rainbow tables partition a function (the hash), whose domain is a set of values and whose codomain is a set of keys derived from those values, into chains such that each chain is an alternating sequence of values and keys, followed by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dictionary Attack
In cryptanalysis and computer security, a dictionary attack is an attack using a restricted subset of a keyspace to defeat a cipher or authentication mechanism by trying to determine its decryption key or passphrase, sometimes trying thousands or millions of likely possibilities often obtained from lists of past security breaches. Technique A dictionary attack is based on trying all the strings in a pre-arranged listing. Such attacks originally used words found in a dictionary (hence the phrase ''dictionary attack''); however, now there are much larger lists available on the open Internet containing hundreds of millions of passwords recovered from past data breaches. There is also cracking software that can use such lists and produce common variations, such as substituting numbers for similar-looking letters. A dictionary attack tries only those possibilities which are deemed most likely to succeed. Dictionary attacks often succeed because many people have a tendency to choose sho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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