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/en
Priority to SE7512172A priority patent/SE412676B/en
Priority to NL7512831A priority patent/NL7512831A/en
Priority to IT2896675A priority patent/IT1048817B/en
Priority to FR7534363A priority patent/FR2290800A1/en
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
CH1476274A 1974-11-05 1974-11-05 CH578807A5 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH1476274A CH578807A5 (en) 1974-11-05 1974-11-05
DE19742457663 DE2457663C2 (en) 1974-11-05 1974-12-06 Method and device for improving the secrecy of encrypted message transmission
SE7512172A SE412676B (en) 1974-11-05 1975-10-30 PROCEDURE FOR IMPROVING THE SECRET LAND BY CRYPED INFORMATION TRANSFER AND DEVELOPMENT PROCEDURE
NL7512831A NL7512831A (en) 1974-11-05 1975-10-31 METHOD AND ARRANGEMENT FOR IMPROVING CONFIDENTIALITY IN THE CODED TRANSMISSION OF MESSAGES.
IT2896675A IT1048817B (en) 1974-11-05 1975-11-03 PROCEDURE AND DEVICE FOR THE IMPROVEMENT OF SECRETY IN THE ENCRYPTED TRANSMISSION OF INFORMATION
FR7534363A FR2290800A1 (en) 1974-11-05 1975-11-03 Improved secrecy of scrambled signals transmission - uses scrambling and unscrambling control by corresponding key signals (NL040576)

Applications Claiming Priority (1)

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

Publications (1)

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

Family

ID=4403628

Family Applications (1)

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

Country Status (6)

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

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 (en) * 1990-06-28 1993-06-04 Alcatel Transmission DIRECT SEQUENCE SPREAD CHANGE DIGITAL SPREAD TRANSMISSION METHOD DURING TRANSMISSION, AND TRANSMITTER AND RECEIVER USING THE SAME.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE455172A (en) * 1943-04-05
CH361597A (en) * 1958-08-23 1962-04-30 Patelhold Patentverwertung Method for obfuscating message signals
NL244086A (en) * 1958-12-10
NL6906145A (en) * 1968-05-15 1969-11-18
CH518658A (en) * 1970-07-07 1972-01-31 Patelhold Patentverwaltungs Un Process for encrypted message transmission by interchanging information elements over time
CH539989A (en) * 1971-04-19 1973-07-31 Gretag Ag Method and device for encrypted message transmission

Also Published As

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

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Legal Events

Date Code Title Description
PL Patent ceased