Search results
Results From The WOW.Com Content Network
The Enigma machine is a cipher device developed and used in the early- to mid-20th century to protect commercial, diplomatic, and military communication.It was employed extensively by Nazi Germany during World War II, in all branches of the German military.
An HC-9 on display at Bletchley Park.. The HC-9 was a mechanical cipher device manufactured by the Swedish company AB Transvertex. It was designed in the early 1950s for the Swedish Armed Forces and in use from 1963 to 1995 as Krypteringsapparat 301 (Kryapp 301).
While the machine achieved a measure of popularity, its security was relatively weak; US cryptanalyst William Friedman reported that he solved the device within 2 hours and 41 minutes. In the history of cryptography , the Kryha machine was a device for encryption and decryption, appearing in the early 1920s and used until the 1950s.
The Enigma machines were a family of portable cipher machines with rotor scramblers. [1] Good operating procedures, properly enforced, would have made the plugboard Enigma machine unbreakable to the Allies at that time. [2] [3] [4] The German plugboard-equipped Enigma became the principal crypto-system of the German Reich and later of other ...
Several complex machines were built by the British to aid the attack on Tunny. The first was the British Tunny. [27] [28] This machine was designed by Bletchley Park, based on the reverse engineering work done by Tiltman's team in the Testery, to emulate the Lorenz Cipher Machine. When the pin wheel settings were found by the Testery, the Tunny ...
SIGABA cipher machine at the National Cryptologic Museum, with removable rotor assembly on top. In the history of cryptography, the ECM Mark II was a cipher machine used by the United States for message encryption from World War II until the 1950s.
Japanese Navy ORANGE cryptographic device captured by US Navy. In the history of cryptography, 91-shiki ōbun injiki (九一式欧文印字機, "System 91 Typewriter for European Characters") or Angōki Taipu-A (暗号機 タイプA, "Type A Cipher Machine"), codenamed Red by the United States, was a diplomatic cryptographic machine used by the Japanese Foreign Office before and during World ...
Completely mechanical, the C-35 machine measured 150 by 115 by 50 millimetres (6 in × 4.5 in × 2 in), and weighed less than 1.5 kilograms (3 lb). A revised machine, the C-36, was similar to the C-35, but had a different distribution of the lugs on the bars. Six C-36 machines were purchased by the Swedish Navy for testing in October 1937. Both ...