electronic cipher machine

См. также в других словарях:

• cipher — cipherable, adj. cipherer, n. /suy feuhr/, n. 1. zero. 2. any of the Arabic numerals or figures. 3. Arabic numerical notation collectively. 4. something of no value or importance. 5. a person of no influence; nonentity. 6. a secret method of… …   Universalium

• Electronic business — Electronic business, commonly referred to as eBusiness or e business , or an internet business, may be defined as the application of information and communication technologies (ICT) in support of all the activities of business. Commerce… …   Wikipedia

• Electronic envelope — An electronic envelope or e envelope is almost like a postal Envelope in function. Where a paper Envelope privately encloses its contents like a mail message, so an Electronic envelope privately encloses its contents like an e mail message.… …   Wikipedia

• Lorenz cipher — Tunny redirects here. For the fish, see Tuna. The Lorenz SZ 40 and SZ 42 ( Schlüsselzusatz , meaning cipher attachment ) were German cipher machines used during World War II for teleprinter circuits. British codebreakers, who referred to… …   Wikipedia

• Cryptanalysis of the Lorenz cipher — The Lorenz SZ machines had 12 wheels each with a different number of cams (or pins). Wheel number 1 2 3 4 5 6 7 …   Wikipedia

• Block cipher modes of operation — This article is about cryptography. For method of operating , see modus operandi. In cryptography, modes of operation is the procedure of enabling the repeated and secure use of a block cipher under a single key.[1][2] A block cipher by itself… …   Wikipedia

• Automated Teller Machine Communication Security — Automated Teller Machines were first used in 1939. Nowadays, about 1.5 million are installed worldwide [ [http://www.atmmarketplace.com/news story 24706.htm Number of ATMs worldwide expected to hit 1.5 million in December 2005] www.atmmarketplace …   Wikipedia

• Automated teller machine — cash machine redirects here. For the Hard Fi song, see Cash Machine. An NCR Personas 75 Series interior, multi function ATM in the United States …   Wikipedia

• Block cipher — In cryptography, a block cipher is a symmetric key cipher operating on fixed length groups of bits, called blocks, with an unvarying transformation. A block cipher encryption algorithm might take (for example) a 128 bit block of plaintext as… …   Wikipedia

• Heath Robinson (codebreaking machine) — Heath Robinson was a machine used by British codebreakers at Bletchley Park during World War II to solve messages in a German teleprinter cipher, the Lorenz SZ40/42. It was the predecessor to the Colossus computer. It was dubbed Heath Robinson by …   Wikipedia

• SIGABA — In the history of cryptography, the ECM Mark II was a rotor machine used by the United States from World War II (WWII) until the 1950s. The machine was also known as the SIGABA or Converter M 134 by the Army, or CSP 888/889 by the Navy, and a… …   Wikipedia