BE848211A - Appareil electronique a chifrer et dechiffrer, sous forme de calculateur de poche - Google Patents

Appareil electronique a chifrer et dechiffrer, sous forme de calculateur de poche

Info

Publication number
BE848211A
BE848211A BE172256A BE172256A BE848211A BE 848211 A BE848211 A BE 848211A BE 172256 A BE172256 A BE 172256A BE 172256 A BE172256 A BE 172256A BE 848211 A BE848211 A BE 848211A
Authority
BE
Belgium
Prior art keywords
decryption device
pocket calculator
electronic encryption
encryption
electronic
Prior art date
Application number
BE172256A
Other languages
English (en)
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 filed Critical
Publication of BE848211A publication Critical patent/BE848211A/fr

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
    • G09C1/06—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 wherein elements corresponding to the signs making up the clear text are operatively connected with elements corresponding to the signs making up the ciphered text, the connections, during operation of the apparatus, being automatically and continuously permuted by a coding or key member
    • G09C1/10—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 wherein elements corresponding to the signs making up the clear text are operatively connected with elements corresponding to the signs making up the ciphered text, the connections, during operation of the apparatus, being automatically and continuously permuted by a coding or key member the connections being electrical

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Calculators And Similar Devices (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Telephone Function (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
BE172256A 1975-11-11 1976-11-10 Appareil electronique a chifrer et dechiffrer, sous forme de calculateur de poche BE848211A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1458775A CH592937A5 (fr) 1975-11-11 1975-11-11

Publications (1)

Publication Number Publication Date
BE848211A true BE848211A (fr) 1977-03-01

Family

ID=4402103

Family Applications (1)

Application Number Title Priority Date Filing Date
BE172256A BE848211A (fr) 1975-11-11 1976-11-10 Appareil electronique a chifrer et dechiffrer, sous forme de calculateur de poche

Country Status (18)

Country Link
US (1) US4095046A (fr)
JP (1) JPS5260543A (fr)
AR (1) AR213832A1 (fr)
BE (1) BE848211A (fr)
BR (1) BR7607456A (fr)
CA (1) CA1081852A (fr)
CH (1) CH592937A5 (fr)
DE (1) DE2647107A1 (fr)
DK (1) DK506876A (fr)
ES (1) ES452720A1 (fr)
FI (1) FI60458C (fr)
FR (1) FR2394853A1 (fr)
GB (1) GB1540470A (fr)
IT (1) IT1074062B (fr)
NL (1) NL7612365A (fr)
NO (1) NO147656C (fr)
SE (1) SE415128B (fr)
ZA (1) ZA766431B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH594261A5 (fr) * 1975-11-20 1977-12-30 Europ Handelsges Anst
DE2706421C2 (de) * 1977-02-16 1979-03-15 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zum Einstellen von Schlüsseltextgeneratoren in Chiffriergeräten
US4303915A (en) * 1977-08-19 1981-12-01 Angelo George D Silent communicator
US4229817A (en) * 1978-04-28 1980-10-21 Datotek, Inc. Portable electronic cryptographic device
US4249180A (en) * 1978-09-20 1981-02-03 Northern Telecom Limited Past dependent microcomputer cipher apparatus
US4360892A (en) * 1979-02-22 1982-11-23 Microwriter Limited Portable word-processor
US4442506A (en) * 1980-09-18 1984-04-10 Microwriter Limited Portable word-processor
US4774684A (en) * 1985-01-31 1988-09-27 Canon Kabushiki Kaisha Electronic apparatus with a display means
US4965828A (en) * 1989-04-05 1990-10-23 Quadri Corporation Non-volatile semiconductor memory with SCRAM hold cycle prior to SCRAM-to-E2 PROM backup transfer
US5778071A (en) * 1994-07-12 1998-07-07 Information Resource Engineering, Inc. Pocket encrypting and authenticating communications device
US7171693B2 (en) * 2000-05-12 2007-01-30 Xtreamlok Pty Ltd Information security method and system

Family Cites Families (4)

* 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
US3878331A (en) * 1972-10-20 1975-04-15 Barrie O Morgan Digital cryptographic system and method
FR2214208B1 (fr) * 1973-01-12 1976-04-30 Teltest Rd Ets
NO760499L (fr) * 1975-02-24 1976-08-25 Gretag Ag

Also Published As

Publication number Publication date
CA1081852A (fr) 1980-07-15
FI763216A (fr) 1977-05-12
NO763825L (fr) 1977-05-12
FI60458B (fi) 1981-09-30
NO147656C (no) 1983-05-25
FR2394853B1 (fr) 1982-12-03
NL7612365A (nl) 1977-05-13
BR7607456A (pt) 1977-09-20
FI60458C (fi) 1982-01-11
SE415128B (sv) 1980-09-08
GB1540470A (en) 1979-02-14
SE7612525L (sv) 1977-05-12
NO147656B (no) 1983-02-07
JPS5260543A (en) 1977-05-19
DE2647107A1 (de) 1977-05-18
DK506876A (da) 1977-05-12
US4095046A (en) 1978-06-13
IT1074062B (it) 1985-04-17
ES452720A1 (es) 1977-10-01
ZA766431B (en) 1977-10-26
FR2394853A1 (fr) 1979-01-12
CH592937A5 (fr) 1977-11-15
AR213832A1 (es) 1979-03-30

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: ANSTALT EUROPAISCHE HANDELSGESELLSCHAFT

Effective date: 19901130