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    • Block and Stream Ciphers

      Block and Stream Ciphers

      The two most common types of encryption algorithm used in modern cryptography are the block and stream ciphers. The block cipher uses a deterministic algorithm that conducts operations on fixed-length groupings of bits, or blocks. By using a transformation specified by a symmetric key, a block cipher is able to encrypt bulk data, and is

    • Cryptographic Algorithms

      Cryptographic Algorithms

      Symmetric Cryptographic Algorithms DES (Data Encryption Standard) is perhaps the most widely used cryptographic algorithm. DES is based upon IBM’s Lucifer algorithm. The NBS (National Bureau of Standards) and the NSA (National Security Agency) adopted DES as a federal standard in 1977. DES is a symmetric cipher with an effective key length of 56 bits.

    • Test Credit Card Numbers

      Test Credit Card Numbers

      A test credit card number is the card number of a fake live credit account provided by a credit card company in order for retailers to verify that their card readers are working properly and that they are compatible with a specific credit card brand. Test credit card numbers are read like real credit card

    • What is Wardriving?

      What is Wardriving?

      Wardriving is the physical act of seeking out a WiFi network with a mobile device or laptop while driving a vehicle. The original term was derived from the movie, War games, that used “war dialing” during the course of the story told in the movies. In the movie, random phone lines connected to a modem

    • How to Change Your Streamyx Password

      How to Change Your Streamyx Password

      TM Net provides the Streamyx broadband Internet service in Malaysia. The service speeds range depending on the consumer’s location in the country and proximity to major network infrastructure; however, a large number of companies, schools, and individual consumers use the service for normal Internet use as well as to host websites and to stream video.

    • Anonymous Proxy Lists

      Anonymous Proxy Lists

      Anonymous proxies appear on the Internet constantly, often only to disappear rapidly when their owners discover the bandwidth cost. To help users find a current anonymous proxy server, dedicated individuals maintain anonymous proxy lists. Anonymous Proxy Server Lists We maintain our own anonymous proxy list that users can access by clicking the Proxy Sites button

    • Substitution and Transposition Ciphers

      Substitution and Transposition Ciphers

      Substitution and transposition ciphers are two categories of ciphers used in classical cryptography. Substitution and transposition differ in how chunks of the message are handled by the encryption process. Substitution ciphers Substitution ciphers encrypt plaintext by changing the plaintext one piece at a time. The Caesar Cipher was an early substitution cipher. In the Caesar

    • Steganography

      Steganography has gained a significant amount of press over the past several years when the technique hit the press as a possible method that many of the terrorists involved with the 9/11 attacks used to plan the operation. Similar to the use of encryption, steganography techniques have become one of the basic methods that organizations

    • How a Smart Card Reader Works

      How a Smart Card Reader Works

      Smart Card Readers are also known as card programmers (because they can write to a card), card terminals, card acceptance device (CAD), or an interface device (IFD). There is a slight difference between the card reader and the terminal. The term ‘reader’ is generally used to describe a unit that interfaces with a PC for

    • Proximity Sensors

      Proximity Sensors

      A proximity sensor is an electronic device that is designed to detect the presence of objects, people, or other living things within a given distance and detection threshold. Proximity sensors are able to detect objects without physically touching them by transmitting a detecting field/beam such as infrared, acoustic, and inductive transmissions. When the sensor receives

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