ZA806394B - Method of and apparatus for transmitting enciphered information - Google Patents

Method of and apparatus for transmitting enciphered information

Info

Publication number
ZA806394B
ZA806394B ZA00806394A ZA806394A ZA806394B ZA 806394 B ZA806394 B ZA 806394B ZA 00806394 A ZA00806394 A ZA 00806394A ZA 806394 A ZA806394 A ZA 806394A ZA 806394 B ZA806394 B ZA 806394B
Authority
ZA
South Africa
Prior art keywords
enciphered information
transmitting enciphered
transmitting
information
enciphered
Prior art date
Application number
ZA00806394A
Inventor
R Weber
M Caflisch
Original Assignee
Crypto Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Crypto Ag filed Critical Crypto Ag
Publication of ZA806394B publication Critical patent/ZA806394B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/06—Secret communication by transmitting the information or elements thereof at unnatural speeds or in jumbled order or backwards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/44—Secrecy systems
    • H04N1/448—Rendering the image unintelligible, e.g. scrambling
    • H04N1/4486—Rendering the image unintelligible, e.g. scrambling using digital data encryption

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Storage Device Security (AREA)
  • Computer And Data Communications (AREA)
  • Communication Control (AREA)
ZA00806394A 1979-10-18 1980-10-17 Method of and apparatus for transmitting enciphered information ZA806394B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH935079 1979-10-18

Publications (1)

Publication Number Publication Date
ZA806394B true ZA806394B (en) 1981-10-28

Family

ID=4351044

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00806394A ZA806394B (en) 1979-10-18 1980-10-17 Method of and apparatus for transmitting enciphered information

Country Status (6)

Country Link
EP (1) EP0027572A1 (en)
JP (1) JPS5666948A (en)
BR (1) BR8006692A (en)
ES (1) ES495648A0 (en)
NO (1) NO802740L (en)
ZA (1) ZA806394B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4642688A (en) * 1983-06-24 1987-02-10 Scientific Atlanta, Inc. Method and apparatus for creating encrypted and decrypted television signals
US5008935A (en) * 1989-06-30 1991-04-16 At&T Bell Laboratories Efficient method for encrypting superblocks of data
DE4021783A1 (en) * 1990-07-11 1992-01-16 Holzer Walter Copying and enciphering device - includes intermediate store for scanned data prior to encoding via keyboard or magnetic card
DE4021061C2 (en) * 1990-07-04 1998-11-05 Holzer Walter Prof Dr H C Ing Method for coding facsimile fax copies
CA2102952A1 (en) * 1992-11-15 1994-05-16 Oded Kafri Process for transmitting and/or storing information
US5801848A (en) * 1993-01-06 1998-09-01 Fontech Ltd. Process for transmitting and/or storing information
KR0184313B1 (en) * 1993-04-09 1999-05-01 모리시타 요이찌 System for scrambling a digital video signal

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1271557A (en) * 1960-07-22 1961-09-15 Philips Nv Improvements in methods and devices for encryption and decryption of messages
CH559483A5 (en) * 1973-06-12 1975-02-28 Patelhold Patentverwertung

Also Published As

Publication number Publication date
NO802740L (en) 1981-04-21
ES8200980A1 (en) 1981-11-16
JPS5666948A (en) 1981-06-05
EP0027572A1 (en) 1981-04-29
BR8006692A (en) 1981-04-22
ES495648A0 (en) 1981-11-16

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