enciphered facsimile communications

enciphered facsimile communications

[en′sī·fərd fak′sim·ə·lē kə‚myün·ə′kā·shənz]
(communications)
Communications in which security is accomplished by mixing pulses produced by a key generator with the output of the facsimile converter; plain text is recovered by subtracting the identical key at the receiving terminal; unauthorized listeners are unable to reconstruct the plain text unless they have an identical key generator and the daily key setting.
Mentioned in ?