A secure telephone is a telephone that provides voice security in the form of end-to-end encryption for the telephone call, and in some cases also the mutual authentication of the call parties, protecting them against a man-in-the-middle attack. Concerns about massive growth of telephone tapping incidents lead to growing demand for secure telephones.
The practical availability of secure telephones is restricted by several factors; notably politics, export issues, incompatibility between different products (the devices on each side of the call have to talk the same protocol), and high (though recently decreasing) price of the devices.
Other articles related to "secure telephone, secure, secure telephones, telephones":
... Scramblers were used to secure voice traffic during World War II, but were often intercepted and decoded due to scrambling's inherent insecurity ... The first true secure telephone was SIGSALY, a massive device that weighed over 50 tons ... after World War II, developed a series of secure telephones, including the STU I, STU II and STU-III, as well as voice encryption devices for military telephones ...
... to decrypt the German Enigma machine STU-I secure telephone desk set (electronics were housed in a separate cabinet) KY-3 secure telephone system Navajo I secure telephone STU-II ...
... The STU-II is a secure telephone developed by the U.S ... It permitted up to six users to have secure communications, on a time-shared (e.g ... The display also stated that the STU-II B is the standard narrow band secure telephone ...
Famous quotes containing the words telephone and/or secure:
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—Mark Twain [Samuel Langhorne Clemens] (18351910)