A known ciphertext attack is an an attack where the cryptanalyst only has access to encrypted ciphertext. A known ciphertext attack is the easiest of the common cryptanalysis attacks to mount, because is requires the least amount of control over the encryption device. Conversely, the known ciphertext is the most difficult of the common methods of cryptanalysis to execute successfully, because so little knowledge is known to begin with.

SSH (Secure Shell) is a protocol for creating a secure connection between two computers. The secure SSH connection provides authentication and encryption. SSH also provides compression. The SSH protocol is defined by the IETF Secure Shell Working Group(secsh). SSH was designed as a replacement for the legacy `telnet` application. The computer being connected to must be running an ssh daemon, or server, process. The computer which is attempting to connect must be running an SSH client. SCP and SFTP – Secure File Transfer Using SSH SCP and SFTP are replacements Read More

TrueCrypt is a free, open source disk encryption software that is available for the Windows XP, Windows Vista, Windows 7, Mac, Linux, and Unix operating systems. TrueCrypt provides users with real time encryption/decryption, parallelization and pipelining to read/write to partitions as fast as non-encrypted partitions, and plausible deniability through hidden volumes and hidden operating systems in order to hide the user’s data even if he/she is forced to reveal his/her password.   How TrueCrypt Works TrueCrypt works by creating a virtual encrypted disk within a file and mounting it as Read More

More consumers are purchasing laptops for personal and business use. Unfortunately, the number of stolen laptops has increased with this rise in laptop purchases. Most consumers do not plan for the possibility of being robbed, and lose a significant amount of personal and sensitive data as a result. The police never find many of these stolen computers. The open source Prey Project provides both free and low cost options for retrieving a stolen computer and supports the Windows, Linux, and OS X operating systems (OSs). Other commercially based stolen laptop Read More

Win Fixer is a piece of malware which pretends to be a diagnostic tool. The makers of Win Fixer claim “WinFixer 2006 detects and repairs corrupted files, removes useless data, cleans up clogged Windows registry and fixes hard drive errors. This useful utility helps you maintain an error-free PC and achieve 100% system performance.” Win Fixer is distributed as a part of many software packages. It then executes every time Microsoft Windows starts up. Win Fixer will assail you with adware messages about illusory problems with your PC. Remove Win Read More

Anyone who plays video games knows that they are not cheap. To get around paying for them, many users take advantage of keygen software that is widely available for free on the Internet market and allows users to trick the game into thinking that they have the correct registration key. This type of theft does not stop at games and often extends to other types of software. Many people use these keygens but do not understand how they work. This article will explain what keygens are and how they work. Read More

Are viruses and malware affecting your computer efficiency? Try HijackThis. HijackThis, popularly known in the computing world as HJT, is one of the most effective spyware and malware removal software tool available for detecting and removing harmful viruses, spyware, worms, Trojans and other pests affecting Microsoft Windows. This program was originally developed by Merijn Bellekom, a Dutch programmer and an anti-spyware specialist who had later sold it to Trend Micro. The most common approach employed by notable anti-virus software available in the market such as Norton Antivirus or Ad-Aware to Read More

Netgear is a leading manufacturer of networking devices such as modems, wireless routers, and network storage devices. Netgear also produces USB based modem cards and markets a wide variety of data plans for a number of Internet Service Providers. Millions of consumers in over one hundred countries use Netgear routers and other devices, which can be used for both residential and commercial purposes. Netgear Default Passwords As with any other router, all Netgear routers include a built-in control panel that users can access in order to change configuration settings, setup Read More

A fake security alert is an event that some types of viruses and other malicious software generate to make a computer appear to be infected with viruses. Fake anti-virus software cause these fake security alerts. Such fake anti-virus software pretend to scan a computer for malicious software and then displays a long list of “infections” that are really essential computer files, application files, or files that do not even exist. When the user attempts to remove these infections with the fake anti-virus software, the program tells him/her to upgrade to Read More

A buffer overflow occurs when a computer application attempts to assign data to a data structure past the point that the structure is designed to store information. In the classic case, a buffer is a sequential memory section that is assigned to contain information. The type of information can vary from an array of integers to objects. When information is stored outside the allocated block of memory, the program can crash or computer malware can infect it. Why are Buffer Overflows Dangerous? Buffer overflows are best known from the software Read More