background preloader

Kriptópolis - Criptografía y Seguridad.

Kriptópolis - Criptografía y Seguridad.
Related:  _Crypto Tools

Encryption For Beginners In an Era of Total Surveillance. By @AnonyOdinn If you’ve read the news lately, you’ve pretty much caught the drift of what’s going on. Surveillance is fast spreading to become a universal problem, governments are becoming the largest sponsors and purchasers of intrusive malware, and for all intents and purposes, all so-called “secure” systems are, simply put, not secure – at least not from governmental intrusion, and certainly not from the steady increase of corporate intrusion – a growing problem in a world where the concept of an open and free net is more at risk than ever. The purpose of this simple tutorial is to provide some encryption for beginners. This is not a tutorial on hacking. A couple of points before you proceed. If you are a journalist, or if you have special reason to believe you may be the subject of an active investigation due to your being named in a pending case or other similar matter, you should take other precautions, including reducing your online exposure when you are active in the field.

Free Software Directory Pixel y Dixel Blog Laboratorio Hispasec Desde su versión Vista, Windows implementa MACL ("Mandatory Access Control List"). Todos sus objetos tienen un “nivel de integridad” asociado. Normalmente “medio”. Uno de los programas que hace eso de estos niveles de integridad es Internet Explorer, y al hecho de usarlo en sus procesos (pestañas) Windows lo llama “Modo protegido”. Esto puede suponer un punto de exposición. SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy Tanto en su versión de LocalMachine como de CurrentUser. Muchass extensiones y plugins de Internet Explorer requieren de estas políticas de elevación para poder funcionar cómodamente. Así que si la rama "Policy" del programa "broker" tiene el valor 3, una instancia del programa que se ejecute con integridad “baja” podrá invocarlo de forma silenciosa (sin que apareciese el diálogo) y manejará la petición en modo de integridad “medio”... lo que supone un peligro. C:\Program Files (x86)\adobe\acrobat 6.0\Acrobat\acrobat.exe

Can quantum cryptography work in the real world ? Can quantum cryptography work in the real world? By William JacksonOct 28, 2013 Battelle Memorial Institute has built what it claims is the nation’s first production system for quantum distribution of cryptographic keys and announced plans to create a 400-mile link enabling quantum-key distribution (QKD) between Columbus, Ohio, and Washington, D.C., by 2015. The project links two facilities in central Ohio and is a demonstration of the R&D organization’s faith in the ability of the emerging technology to future-proof cryptography threatened by increasingly powerful computers. “Practical QKD systems have existed for about 10 years,” said Don Hayford, director of research at Battelle. Although new in the United States, banks and government agencies in Europe have been using QKD for several years. Not everyone is so sanguine about the current capabilities of QKD. “It’s still a work in progress,” said Alan Mink, electronic engineer in NIST’s Advanced Networking division.

OpenClipArt Kirai – Un geek en Japón by Héctor García 48Bits Blog Geli (software) geli is a block device-layer disk encryption system written for FreeBSD, introduced in version 6.0. It utilises the GEOM disk framework. It was designed and implemented by Paweł Jakub Dawidek.[1] geli was initially written to protect data on a user's computer in situations of physical theft of hardware, disallowing the thief access to the protected data. This has changed over time with the introduction of optional data authentication/integrity verification.[2] geli allows the key to consist of several information components (a user entered passphrase, random bits from a file, etc.), permits multiple keys (a user key and a company key, for example) and can attach a provider with a random, one-time key. Jump up ^ "Encrypting disk partitions".

Bienvenido a Docentes Innovadores.NET Barrapunto: La informaci?n que te interesa CRYPTEX - Seguridad de la Información Linux Unified Key Setup - LUKS In computing, the Linux Unified Key Setup or LUKS is a disk-encryption specification created by Clemens Fruhwirth and originally intended for Linux. While most disk encryption software implements different and incompatible, undocumented formats, LUKS specifies a platform-independent standard on-disk format for use in various tools. This not only facilitates compatibility and interoperability amongst different programs, but also assures that they all implement password management in a secure and documented manner.[1] The design of LUKS aimed to conform to the TKS1 secure key setup scheme.[2] See also[edit] References[edit] External links[edit] Official website