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Openwall Project
The Openwall Project is a source for various software, including Openwall GNU/*/Linux (Owl), a security-enhanced Linux distribution designed for servers. Openwall Patch (computing), patches and security extensions have been included into many major Linux distributions. As the name implies, Openwall GNU/*/Linux draws source code and design concepts from numerous sources; most importantly to the project is its usage of the Linux kernel and parts of the GNU Userland (computing), userland, and others include the BSDs, such as OpenBSD for its OpenSSH suite and the inspiration behind its own blowfish (cipher), Blowfish-based crypt (Unix), crypt for password hashing, compatible with the OpenBSD implementation. Public domain software The Openwall project maintains also a list of algorithms and source code which is public domain software. Openwall GNU/*/Linux releases LWN.net reviewed Openwall Linux 3.0. They wrote: ''PoC, , GTFO'' Issues of the ''International Journal of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Designer
Alexander Peslyak () (born 1977), better known as Solar Designer, is a security specialist from Russia. He is best known for his publications on exploitation techniques, including the return-to-libc attack and the first Buffer overflow#Heap-based exploitation, generic heap-based buffer overflow exploitation technique, as well as computer security protection techniques such as privilege separation for daemon (computer software), daemon processes. Peslyak is the author of the widely popular password cracking tool John the Ripper. His code has also been used in various third-party operating systems, such as OpenBSD and Debian. Work Peslyak has been the founder and leader of the Openwall Project since 1999. He is the founder of Openwall, Inc. and has been the CTO since 2003. He served as an advisory board member at the Open Source Computer Emergency Response Team (oCERT) from 2008 until oCERT's conclusion in August 2017. He also co-founded oss-security. He has spoken at many inter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaos Computer Club
The Chaos Computer Club (CCC) is Europe's largest association of Hacker (computer security), hackers with 7,700 registered members. Founded in 1981, the association is incorporated as an ''eingetragener Verein'' in Germany, with local chapters (called ''Erfa-Kreise'') in various cities in Germany and the surrounding countries, particularly where there are German-speaking communities. Since 1985, some chapters in Switzerland have organized an independent sister association called the (CCC-CH) instead. The CCC describes itself as "a galactic community of life forms, independent of age, sex, race or societal orientation, which strives across borders for freedom of information…". In general, the CCC advocates more transparency in government, freedom of information, and the human rights, human right to communication. Supporting the principles of the hacker ethic, the club also fights for free universal access to computers and technological infrastructure as well as the use of open ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Free Software Projects
Free may refer to: Concept * Freedom, the ability to act or change without constraint or restriction * Emancipate, attaining civil and political rights or equality * Free (''gratis''), free of charge * Gratis versus libre, the difference between the two common meanings of the adjective "free". Computing * Free (programming), a function that releases dynamically allocated memory for reuse * Free software, software usable and distributable with few restrictions and no payment *, an emoji in the Enclosed Alphanumeric Supplement block. Mathematics * Free object ** Free abelian group ** Free algebra ** Free group ** Free module ** Free semigroup * Free variable People * Free (surname) * Free (rapper) (born 1968), or Free Marie, American rapper and media personality * Free, a pseudonym for the activist and writer Abbie Hoffman * Free (active 2003–), American musician in the band FreeSol Arts and media Film and television * ''Free'' (film), a 2001 American dra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John The Ripper
John the Ripper is a free password cracking software tool. Originally developed for the Unix operating system, it can run on fifteen different platforms (eleven of which are architecture-specific versions of Unix, DOS, Win32, BeOS, and OpenVMS). It is among the most frequently used password testing and breaking programs as it combines a number of password crackers into one package, automatically detects password hash types, and includes a customizable cracker. It can be run against various encrypted password formats including several crypt password hash types most commonly found on various Unix versions (based on DES, MD5, or Blowfish), Kerberos AFS, and Windows NT/2000/XP/2003 LM hash. Additional modules have extended its ability to include MD4-based password hashes and passwords stored in LDAP, MySQL, and others. Sample output Here is a sample output in a Debian environment. $ cat pass.txt user:AZl.zWwxIh15Q $ john -w:password.lst pass.txt Loaded 1 password hash ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Security-focused Operating System
This is a list of operating systems specifically focused on computer security, security. Similar concepts include security-evaluated operating systems that have achieved certification from an code audit, auditing organization, and trusted operating systems that provide sufficient support for multilevel security and evidence of correctness (computer science), correctness to meet a particular set of requirements. Linux Android-based * GrapheneOS is a privacy and security-focused mobile operating system for selected Google Pixel smartphones and tablets. Debian-based * Tails (operating system), Tails is aimed at preserving privacy and anonymity. * Whonix consists of two Virtual Machine, virtual machines. All communications are forced through Tor (network), Tor. * Linux Kodachi is a security-focused operating system. Other Linux distributions * Alpine Linux is designed to be small, simple, and secure. It uses musl, BusyBox, and OpenRC instead of the more commonly used gli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comparison Of Linux Distributions
Technical variations of Linux distributions include support for different hardware devices and systems or software package configurations. Organizational differences may be motivated by historical reasons. Other criteria include security, including how quickly security upgrades are available; ease of package management; and number of packages available. These tables compare notable distribution's latest stable release on wide-ranging objective criteria. It does not cover each operating system's subjective merits, branches marked as unstable or beta, nor compare Linux distributions with other operating systems. General The table below shows general information about the distributions: founder or producer, maintainer, release date, the latest version, etc. Linux distributions endorsed by the Free Software Foundation are marked 100% Free under the System distribution commitment column. Technical The table below shows the default file system, but many Linux distributions s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Executable Space Protection
In computer security, executable-space protection marks memory regions as non-executable, such that an attempt to execute machine code in these regions will cause an exception. It relies on hardware features such as the NX bit (no-execute bit), or on software emulation when hardware support is unavailable. Software emulation often introduces a performance cost, or overhead (extra processing time or resources), while hardware-based NX bit implementations have no measurable performance impact. The Burroughs large systems, starting with the Burroughs 5000 introduced in 1961, implemented executable-space protection using a tagged architecture. All accesses to code and data took place through descriptors, which had memory tags preventing them from being modified; descriptors for code did not allow the code to be modified, and descriptors for data did not allow the data ta be executed as code. Today, operating systems use executable-space protection to mark writable memory areas, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinz Heise
Heise Gruppe GmbH & Co. KG is a German media conglomerate headquartered in Hanover. It was founded in 1949 by Heinz Heise and is still Family business, family-owned. Its core business is directory media as well as general-interest and specialist media from the fields of computer technology, information technology and network culture. Another focus of its business activities is portals for price and product comparisons. History In 1949, founded the publishing house named after him in Hanover-Badenstedt. The company's first product was an address book for the town of Bünde, later joined by the telephone directory for Einbeck. Gradually, other cities and regions were added to the product range. In addition, Heise expanded the program to include non-fiction topics, such as manuals on law. By 1960, sales had risen to over one million marks. In 1972, Heinz Heise handed over the management of the company to his son . Under his leadership, a magazine for electronics and technology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HTML
Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It defines the content and structure of web content. It is often assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript, a programming language. Web browsers receive HTML documents from a web server or from local storage and browser engine, render the documents into multimedia web pages. HTML describes the structure of a web page Semantic Web, semantically and originally included cues for its appearance. HTML elements are the building blocks of HTML pages. With HTML constructs, HTML element#Images and objects, images and other objects such as Fieldset, interactive forms may be embedded into the rendered page. HTML provides a means to create structured documents by denoting structural semantics for text such as headings, paragraphs, lists, Hyperlink, links, quotes, and other items. HTML elements are delineated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Better Portable Graphics
Better Portable Graphics (BPG) is a file format for coding digital images, which was created by programmer Fabrice Bellard in 2014. He has proposed it as a replacement for the JPEG image format as the more compression-efficient alternative in terms of image quality or file size. It is based on the intra-frame encoding of the High Efficiency Video Coding (HEVC) video compression standard. Tests on photographic images in July 2014 found that BPG produced smaller files for a given quality than JPEG, JPEG XR and WebP. The format has been designed to be portable and work in low memory environments, and used in portable handheld and IoT devices, where those properties are particularly important. In 2015 research was working on designing and developing more energy-efficient BPG hardware which could potentially then be integrated in portable devices such as digital cameras. While there is no built-in native support for BPG in any mainstream browsers, websites can still deliver BPG im ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zip (file Format)
ZIP is an archive file format that supports lossless compression, lossless data compression. A ZIP file may contain one or more files or directories that may have been compressed. The ZIP file format permits a number of Data compression, compression algorithms, though DEFLATE is the most common. This format was originally created in 1989 and was first implemented in PKWARE, Inc.'s PKZIP utility, as a replacement for the previous ARC (file format), ARC compression format by Thom Henderson. The ZIP format was then quickly supported by many software utilities other than PKZIP. Microsoft has included built-in ZIP support (under the name "compressed folders") in versions of Microsoft Windows since 1998 via the "Plus! 98" addon for Windows 98. Native support was added as of the year 2000 in Windows ME. Apple has included built-in ZIP support in macOS, Mac OS X 10.3 (via BOMArchiveHelper, now Archive Utility) and later. Most :Free software operating systems, free operating s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portable Document Format
Portable document format (PDF), standardized as ISO 32000, is a file format developed by Adobe in 1992 to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems. Based on the PostScript language, each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts, vector graphics, raster images and other information needed to display it. PDF has its roots in "The Camelot Project" initiated by Adobe co-founder John Warnock in 1991. PDF was standardized as ISO 32000 in 2008. The last edition as ISO 32000-2:2020 was published in December 2020. PDF files may contain a variety of content besides flat text and graphics including logical structuring elements, interactive elements such as annotations and form-fields, layers, rich media (including video content), three-dimensional objects using U3D or PRC, and various other data formats. The PDF specific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
