Homepage
Crypto
Index
Glossary
Enigma
Hagelin
Fialka
Nema
Voice
Hand
OTP
EMU
Mixers
Phones
FILL
Codebooks
Algorithms
USA
USSR
UK
Yugoslavia
Ascom
AT&T
Bosch
Datotek
Gretag
HELL
ITT
Motorola
Mils
OMI
Philips
Racal
Siemens
STK
Tadiran
Telsy
Teltron
Transvertex
TST
Spy radio
Burst encoders
Intercept
Covert
Radio
PC
Telex
People
Agencies
Manufacturers
• • • Donate • • •
Kits
Shop
News
Events
Wanted
Contact
About
Links
   Click for homepage
ME-840
OTT cipher machine (mixer) - wanted item

The ME-840 was an off-line cipher machine for teleprinter networks (telex), developed by Mils Elektronik in Mils (Austria) in the early 1980s, as the successor to the TT-360. The machine offers unbreakable encryption, by using the Vernam principle to mix the data from a clear-text tape with the random data from a One-Time Tape. The machine was succeeded by the ME-640.

The ME-840 was the first cipher machine from Mils that could use randomly generated keys from punched paper tape (OTT) was well as from 5¼" floppy disc. The machine was housed in a standard 4U 19" rackmount system, with the (black) floppy disc drive at the front left.

The image on the right was extracted from the ME-840 sales brochure, in which the various possible configurations are further explained [1].
  
Help required
At present we have no further information about this device. Furthermore, we are still hoping to add it to our collection in due course. If you have such a device or any related information, and are willing to donate it to Crypto Museum, please contact us.


References
  1. Mils Elektronik, ME-840 Off-Line Telex Cipher System
    Full-colour sales Brochure. 8 pages. Date unknown, but probably early 1980s. 1
  1. Document kindly supplied by Mils Electronic.

Further information
Any links shown in red are currently unavailable. If you like the information on this website, why not make a donation?
Crypto Museum. Last changed: Friday, 28 August 2015 - 15:46 CET.
Click for homepage