SE316797B - - Google Patents

Info

Publication number
SE316797B
SE316797B SE10201/65A SE1020165A SE316797B SE 316797 B SE316797 B SE 316797B SE 10201/65 A SE10201/65 A SE 10201/65A SE 1020165 A SE1020165 A SE 1020165A SE 316797 B SE316797 B SE 316797B
Authority
SE
Sweden
Prior art keywords
counter
stages
counters
pair
transmitting
Prior art date
Application number
SE10201/65A
Other languages
English (en)
Inventor
G Guanella
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
Publication of SE316797B publication Critical patent/SE316797B/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
    • H04L9/06—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
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • 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
    • H04L9/0656—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
    • H04L9/0662—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher with particular pseudorandom sequence generator
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Lock And Its Accessories (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
SE10201/65A 1964-08-06 1965-08-04 SE316797B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1030864A CH411030A (de) 1964-08-06 1964-08-06 Einrichtung zur Verschlüsselung einer impulsförmigen Nachricht

Publications (1)

Publication Number Publication Date
SE316797B true SE316797B (nl) 1969-11-03

Family

ID=4361792

Family Applications (1)

Application Number Title Priority Date Filing Date
SE10201/65A SE316797B (nl) 1964-08-06 1965-08-04

Country Status (7)

Country Link
US (1) US3651261A (nl)
CH (1) CH411030A (nl)
DE (1) DE1205133B (nl)
FR (1) FR1442912A (nl)
GB (1) GB1093575A (nl)
NL (1) NL142302B (nl)
SE (1) SE316797B (nl)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878332A (en) * 1972-10-20 1975-04-15 Barrie O Morgan Digital crytographic system and method
US3813493A (en) * 1972-12-07 1974-05-28 P Hughes Secure data transmission apparatus
DE2455477C3 (de) * 1974-11-23 1982-08-26 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Verfahren zur Sprachverschleierung durch zeitliches Vertauschen der Sprachabschnitte
US4341925A (en) * 1978-04-28 1982-07-27 Nasa Random digital encryption secure communication system
DE3064903D1 (en) * 1979-06-08 1983-10-27 Gretag Ag Apparatus for enciphered transmission of messages
US4965825A (en) 1981-11-03 1990-10-23 The Personalized Mass Media Corporation Signal processing apparatus and methods
US7831204B1 (en) 1981-11-03 2010-11-09 Personalized Media Communications, Llc Signal processing apparatus and methods
USRE47642E1 (en) 1981-11-03 2019-10-08 Personalized Media Communications LLC Signal processing apparatus and methods
US4612658A (en) * 1984-02-29 1986-09-16 Tektronix, Inc. Programmable ripple counter having exclusive OR gates
FR2714495B1 (fr) * 1984-11-27 1996-01-26 Trt Telecom Radio Electr Système de télécommande pour guider sur une cible un mobile.
US4791669A (en) * 1985-11-30 1988-12-13 Nec Corporation Encryption/decryption system
US5805704A (en) * 1995-12-15 1998-09-08 United Microelectronics Corp. Method and apparatus for protecting broadcast software against unauthorized reception on a software broadcasting system
WO2007043002A2 (en) * 2005-10-14 2007-04-19 Koninklijke Philips Electronics N.V. Improved security system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696599A (en) * 1953-02-12 1954-12-07 Bell Telephone Labor Inc Check circuits
US3040192A (en) * 1958-07-30 1962-06-19 Ibm Logic, exclusive-or, and shift register circuits utilizing directly connected cascade transistors in "tree" configuration
CH361597A (de) * 1958-08-23 1962-04-30 Patelhold Patentverwertung Verfahren zur Verschleierung von Nachrichtensignalen
US3067280A (en) * 1959-09-15 1962-12-04 Teleprompter Corp Secret signaling
NL256822A (nl) * 1959-10-16
US3078344A (en) * 1960-10-25 1963-02-19 Robertshaw Fulton Controls Co Phase demodulation of keyed carrier by use of synchronous gating, with phase lock driven step wise in response to forbidden output
NL272974A (nl) * 1960-12-29
US3244808A (en) * 1962-01-12 1966-04-05 Massachusetts Inst Technology Pulse code modulation with few amplitude steps
US3289082A (en) * 1963-05-31 1966-11-29 Gen Electric Phase shift data transmission system with phase-coherent data recovery
US3341659A (en) * 1964-01-24 1967-09-12 Burroughs Corp Controlled bandwidth coded voice communication system

Also Published As

Publication number Publication date
NL142302B (nl) 1974-05-15
CH411030A (de) 1966-04-15
US3651261A (en) 1972-03-21
DE1205133B (de) 1965-11-18
GB1093575A (en) 1967-12-06
FR1442912A (fr) 1966-06-17
NL6412504A (nl) 1966-02-07

Similar Documents

Publication Publication Date Title
US4341925A (en) Random digital encryption secure communication system
US3659046A (en) Message scrambler for pcm communication system
SE316797B (nl)
GB1506945A (en) Method of and apparatus for inserting or removing additional information in or from a television signal
SE308132B (nl)
NL6415006A (nl)
GB1379740A (en) Method and apparatus for encoded messages transmission
US3731198A (en) Synchronization device for anti-jamming communications system
ES372838A1 (es) Un metodo de sincronizar un receptor a una corriente de bi-tios dividida en bloques que tienen un numero constante de bitios.
US2527650A (en) Synchronization of pulse transmission systems
US4305152A (en) Security communication system
GB1031686A (en) A synchronising device for a pulse code transmission system
GB1158368A (en) Automatically Synchronised Time Indicating System
US3585596A (en) Digital signalling system
GB1253882A (en) SYNCHRONISATION e.g. OF A PCM-RECEIVER AND A TRANSMITTER
GB1076063A (en) Improvements in or relating to time-division multiplex communications
US5004185A (en) Air-surface-missile data link system
US2645677A (en) Method and means for transmitting intelligence
GB796858A (en) Improvements in or relating to subscription television system
US3732355A (en) Inhibitable random pulse generator
US3555425A (en) Synchronization apparatus for two-way synchronous coded link
US2756274A (en) Pulse signalling systems
US5022079A (en) Lock means and TV sync for air-to-surface missile
US3716796A (en) Semi-random pulse generator
SU745016A1 (ru) Устройство маскировки телевизионных сигналов