CH247356A - Secret radiotelegraphy method and installation for its implementation. - Google Patents

Secret radiotelegraphy method and installation for its implementation.

Info

Publication number
CH247356A
CH247356A CH247356DA CH247356A CH 247356 A CH247356 A CH 247356A CH 247356D A CH247356D A CH 247356DA CH 247356 A CH247356 A CH 247356A
Authority
CH
Switzerland
Prior art keywords
radiotelegraphy
secret
implementation
installation
secret radiotelegraphy
Prior art date
Application number
Other languages
French (fr)
Inventor
Cie E Gutzwiller
Original Assignee
Gutzwiller & Cie E
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 Gutzwiller & Cie E filed Critical Gutzwiller & Cie E
Publication of CH247356A publication Critical patent/CH247356A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/38—Encryption being effected by mechanical apparatus, e.g. rotating cams, switches, keytape punchers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/80—Wireless

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
CH247356D 1941-12-31 1942-10-14 Secret radiotelegraphy method and installation for its implementation. CH247356A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR885063T 1941-12-31
FR52312T 1941-12-31
FR311241X 1941-12-31

Publications (1)

Publication Number Publication Date
CH247356A true CH247356A (en) 1947-02-28

Family

ID=27245054

Family Applications (1)

Application Number Title Priority Date Filing Date
CH247356D CH247356A (en) 1941-12-31 1942-10-14 Secret radiotelegraphy method and installation for its implementation.

Country Status (2)

Country Link
CH (1) CH247356A (en)
FR (2) FR885063A (en)

Also Published As

Publication number Publication date
FR885063A (en) 1943-09-03
FR52312E (en) 1943-12-01

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