NL153054B - Stelsel voor het versluieren en ontsluieren van berichten. - Google Patents

Stelsel voor het versluieren en ontsluieren van berichten.

Info

Publication number
NL153054B
NL153054B NL646415006A NL6415006A NL153054B NL 153054 B NL153054 B NL 153054B NL 646415006 A NL646415006 A NL 646415006A NL 6415006 A NL6415006 A NL 6415006A NL 153054 B NL153054 B NL 153054B
Authority
NL
Netherlands
Prior art keywords
series
pulses
cipher
receiving station
cipher pulses
Prior art date
Application number
NL646415006A
Other languages
English (en)
Dutch (nl)
Other versions
NL6415006A (xx
Original Assignee
Gretag 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
Priority claimed from CH1593863A external-priority patent/CH422047A/de
Application filed by Gretag Ag filed Critical Gretag Ag
Publication of NL6415006A publication Critical patent/NL6415006A/xx
Publication of NL153054B publication Critical patent/NL153054B/xx

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
    • 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 Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Small-Scale Networks (AREA)
  • Mobile Radio Communication Systems (AREA)
NL646415006A 1963-12-24 1964-12-23 Stelsel voor het versluieren en ontsluieren van berichten. NL153054B (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1593863A CH422047A (de) 1963-12-24 1963-12-24 Verfahren zur Synchronisierung der Ver- und Entschlüsselung von impulsförmig dargestellten Nachrichten
US04/420,393 US4145569A (en) 1963-12-24 1964-12-22 Method and apparatus for synchronizing the ciphering and deciphering of binary-coded messages

Publications (2)

Publication Number Publication Date
NL6415006A NL6415006A (xx) 1965-06-25
NL153054B true NL153054B (nl) 1977-04-15

Family

ID=25717222

Family Applications (1)

Application Number Title Priority Date Filing Date
NL646415006A NL153054B (nl) 1963-12-24 1964-12-23 Stelsel voor het versluieren en ontsluieren van berichten.

Country Status (5)

Country Link
US (1) US4145569A (xx)
DE (1) DE1216921C2 (xx)
GB (1) GB1096232A (xx)
NL (1) NL153054B (xx)
SE (1) SE326210B (xx)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1803062C1 (de) * 1968-10-15 1999-02-25 Telefunken Patent Einrichtung zur Synchronisation von Zufallszeichengeneratoren
CH539989A (de) * 1971-04-19 1973-07-31 Gretag Ag Verfahren und Vorrichtung zur chiffrierten Nachrichtenübermittlung
DE2631823C3 (de) * 1976-07-15 1984-03-01 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren zum Synchronisieren von Schlüsseleinrichtungen für Datenübertragungsanlagen
FR2518338A1 (fr) * 1981-12-15 1983-06-17 Thomson Csf Procede de synchronisation des postes emetteurs-recepteurs d'un reseau a sauts de frequence et poste destine a la mise en oeuvre de ce procede
US4510579A (en) * 1982-07-02 1985-04-09 Rca Corporation Fast correlation system
DE3325349A1 (de) * 1983-07-14 1985-01-24 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren und schaltungsanordnung zur ueberwachung und wiederherstellung des synchronlaufs von datenverschluesselgeraeten
DE3325347A1 (de) * 1983-07-14 1985-01-24 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren und schaltungsanordnung zur ueberwachung und wiederherstellung des synchronlaufs von datenverschluesselgeraeten
US4998279A (en) * 1984-11-30 1991-03-05 Weiss Kenneth P Method and apparatus for personal verification utilizing nonpredictable codes and biocharacteristics
US4885778A (en) * 1984-11-30 1989-12-05 Weiss Kenneth P Method and apparatus for synchronizing generation of separate, free running, time dependent equipment
US5367572A (en) * 1984-11-30 1994-11-22 Weiss Kenneth P Method and apparatus for personal identification
US4720860A (en) * 1984-11-30 1988-01-19 Security Dynamics Technologies, Inc. Method and apparatus for positively identifying an individual
DE3832946A1 (de) * 1988-09-28 1990-04-05 Siemens Ag Verfahren zur verschluesselung digitaler zeitmultiplexsignale
US4972474A (en) * 1989-05-01 1990-11-20 Cylink Corporation Integer encryptor
US5237614A (en) * 1991-06-07 1993-08-17 Security Dynamics Technologies, Inc. Integrated network security system
ATE200169T1 (de) * 1992-12-30 2001-04-15 Telstra Corp Ltd Verfahren und einrichtung zur erzeugung einer chiffriersequenz
US5612683A (en) * 1994-08-26 1997-03-18 Trempala; Dohn J. Security key holder
US6603857B1 (en) * 1997-07-14 2003-08-05 Entrust Technologies Limited Method and apparatus for controlling release of time sensitive information
DE19822685A1 (de) * 1998-05-20 2000-01-27 Deutsche Telekom Ag Verfahren zur gesicherten Übertragung von Nachrichten
US6985583B1 (en) 1999-05-04 2006-01-10 Rsa Security Inc. System and method for authentication seed distribution
US20090245516A1 (en) * 2008-02-26 2009-10-01 Pasupuleti Sureshbabu Ravikiran Method and system for high entropy encryption using an unpredictable seed based on user regisration time
US7363494B2 (en) * 2001-12-04 2008-04-22 Rsa Security Inc. Method and apparatus for performing enhanced time-based authentication
JP4490170B2 (ja) * 2003-05-24 2010-06-23 ハウニ・マシイネンバウ・アクチエンゲゼルシヤフト 煙草加工産業の製品を製造する生産機械における照明装置と付属ランプ
EP1849119B1 (en) * 2005-02-18 2019-07-10 EMC Corporation Derivative seeds
KR20220104167A (ko) * 2019-11-22 2022-07-26 엘지전자 주식회사 무선 통신 시스템에서 취약한 도로 사용자의 단말이 신호를 수신하는 방법
CN114844574B (zh) * 2022-07-04 2022-10-18 浙江大学湖州研究院 一种光纤通信***及通信方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL110769C (xx) * 1955-01-26
CH382216A (de) * 1960-11-07 1964-09-30 Europ Handelsges Anst Gerät zur Ver- und Entschlüsselung eines in Fernschreibersymbolen niedergelegten Textes

Also Published As

Publication number Publication date
DE1216921C2 (de) 1976-05-13
US4145569A (en) 1979-03-20
NL6415006A (xx) 1965-06-25
SE326210B (xx) 1970-07-20
GB1096232A (en) 1967-12-20
DE1216921B (de) 1966-05-18

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: GRETAG