CH578807A5 - - Google Patents

Info

Publication number
CH578807A5
CH578807A5 CH1476274A CH1476274A CH578807A5 CH 578807 A5 CH578807 A5 CH 578807A5 CH 1476274 A CH1476274 A CH 1476274A CH 1476274 A CH1476274 A CH 1476274A CH 578807 A5 CH578807 A5 CH 578807A5
Authority
CH
Switzerland
Application number
CH1476274A
Original Assignee
Patelhold Patentverwertung
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 Patelhold Patentverwertung filed Critical Patelhold Patentverwertung
Priority to CH1476274A priority Critical patent/CH578807A5/xx
Priority to DE19742457663 priority patent/DE2457663C2/de
Priority to SE7512172A priority patent/SE412676B/xx
Priority to NL7512831A priority patent/NL7512831A/xx
Priority to FR7534363A priority patent/FR2290800A1/fr
Priority to IT2896675A priority patent/IT1048817B/it
Publication of CH578807A5 publication Critical patent/CH578807A5/xx

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
    • H04L9/12—Transmitting and receiving encryption devices synchronised or initially set up in a particular manner
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Selective Calling Equipment (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Mobile Radio Communication Systems (AREA)
CH1476274A 1974-11-05 1974-11-05 CH578807A5 (xx)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH1476274A CH578807A5 (xx) 1974-11-05 1974-11-05
DE19742457663 DE2457663C2 (de) 1974-11-05 1974-12-06 Verfahren und Einrichtung zur Verbesserung der Geheimhaltung bei der verschlüsselten Nachrichtenübertragung
SE7512172A SE412676B (sv) 1974-11-05 1975-10-30 Forfarande for forbettring av hemlighallandet vid krypterad informationsoverforing samt anordning for utforande av forfarandet
NL7512831A NL7512831A (nl) 1974-11-05 1975-10-31 Werkwijze en inrichting voor het verbeteren van de geheimhouding bij de gecodeerde overdracht van be- richten.
FR7534363A FR2290800A1 (fr) 1974-11-05 1975-11-03 Procede pour renforcer la protection du secret lors de la transmission codee d'informations et dispositif pour la mise en oeuvre de ce procede
IT2896675A IT1048817B (it) 1974-11-05 1975-11-03 Procedimento e dispositivo per il miglioramento della segretezza nella trasmissione cifrata delle informazioni

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1476274A CH578807A5 (xx) 1974-11-05 1974-11-05

Publications (1)

Publication Number Publication Date
CH578807A5 true CH578807A5 (xx) 1976-08-13

Family

ID=4403628

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1476274A CH578807A5 (xx) 1974-11-05 1974-11-05

Country Status (6)

Country Link
CH (1) CH578807A5 (xx)
DE (1) DE2457663C2 (xx)
FR (1) FR2290800A1 (xx)
IT (1) IT1048817B (xx)
NL (1) NL7512831A (xx)
SE (1) SE412676B (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4310720A (en) * 1978-03-31 1982-01-12 Pitney Bowes Inc. Computer accessing system
FR2664113B1 (fr) * 1990-06-28 1993-06-04 Alcatel Transmission Procede de transmission numerique a etalement de spectre par sequence directe a changement de sequences en cours de transmission, et emetteur et recepteur le mettant en óoeuvre.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE455172A (xx) * 1943-04-05
CH361597A (de) * 1958-08-23 1962-04-30 Patelhold Patentverwertung Verfahren zur Verschleierung von Nachrichtensignalen
NL244086A (xx) * 1958-12-10
NL6906145A (xx) * 1968-05-15 1969-11-18
CH518658A (de) * 1970-07-07 1972-01-31 Patelhold Patentverwaltungs Un Verfahren zur verschlüsselten Nachrichtenübermittlung durch zeitliche Vertauschung von Informationselementen
CH539989A (de) * 1971-04-19 1973-07-31 Gretag Ag Verfahren und Vorrichtung zur chiffrierten Nachrichtenübermittlung

Also Published As

Publication number Publication date
FR2290800A1 (fr) 1976-06-04
FR2290800B3 (xx) 1979-06-29
IT1048817B (it) 1980-12-20
NL7512831A (nl) 1976-05-07
DE2457663C2 (de) 1983-11-17
SE412676B (sv) 1980-03-10
SE7512172L (sv) 1976-05-06
DE2457663A1 (de) 1976-05-06

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Legal Events

Date Code Title Description
PL Patent ceased