IT1150966B - Procedimento e dispositivo per codificare o decodificare e salvaguardare dati - Google Patents

Procedimento e dispositivo per codificare o decodificare e salvaguardare dati

Info

Publication number
IT1150966B
IT1150966B IT24246/80A IT2424680A IT1150966B IT 1150966 B IT1150966 B IT 1150966B IT 24246/80 A IT24246/80 A IT 24246/80A IT 2424680 A IT2424680 A IT 2424680A IT 1150966 B IT1150966 B IT 1150966B
Authority
IT
Italy
Prior art keywords
decode
code
procedure
protect data
protect
Prior art date
Application number
IT24246/80A
Other languages
English (en)
Other versions
IT8024246A0 (it
Inventor
Hermann Stockburger
Hans Georg Winderlich
Original Assignee
Stockburger H
Hans Georg Winderlich
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 Stockburger H, Hans Georg Winderlich filed Critical Stockburger H
Publication of IT8024246A0 publication Critical patent/IT8024246A0/it
Application granted granted Critical
Publication of IT1150966B publication Critical patent/IT1150966B/it

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
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Storage Device Security (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Error Detection And Correction (AREA)
  • Credit Cards Or The Like (AREA)
  • Character Discrimination (AREA)
IT24246/80A 1979-08-21 1980-08-21 Procedimento e dispositivo per codificare o decodificare e salvaguardare dati IT1150966B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2933764A DE2933764C2 (de) 1979-08-21 1979-08-21 Verfahren und Einrichtung zum Verschlüsseln bzw. Entschlüsseln und Sichern von Daten

Publications (2)

Publication Number Publication Date
IT8024246A0 IT8024246A0 (it) 1980-08-21
IT1150966B true IT1150966B (it) 1986-12-17

Family

ID=6078911

Family Applications (1)

Application Number Title Priority Date Filing Date
IT24246/80A IT1150966B (it) 1979-08-21 1980-08-21 Procedimento e dispositivo per codificare o decodificare e salvaguardare dati

Country Status (11)

Country Link
US (1) US4339820A (it)
JP (1) JPS5664376A (it)
AT (1) AT382474B (it)
CA (1) CA1159123A (it)
CH (1) CH650608A5 (it)
DE (1) DE2933764C2 (it)
FR (1) FR2463952B1 (it)
GB (1) GB2057172B (it)
IT (1) IT1150966B (it)
NL (1) NL8004666A (it)
SE (1) SE8005836L (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800520A (en) * 1985-10-29 1989-01-24 Kabushiki Kaisha Toshiba Portable electronic device with garbage collection function
FR2608809B1 (fr) * 1986-12-19 1991-04-19 Flonic Sa Systeme de fourniture de prestations a revalidation
EP0418742B1 (de) * 1989-09-18 1995-03-08 Omnisec Ag Verfahren und Vorrichtung zur geschützten Datenübertragung
NL9002071A (nl) * 1990-09-21 1991-02-01 Nl Bank Nv Een bankbiljet met streepcode.
DE19707288A1 (de) * 1997-02-24 1998-08-27 Andreas Kuehnl Mittel zur sicheren Chiffrierung jeglicher Art von Daten

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3235716A (en) * 1961-12-05 1966-02-15 Ncr Co Data entry checking apparatus
JPS4812379B1 (it) * 1968-12-16 1973-04-20
US3662343A (en) * 1970-07-29 1972-05-09 Docutel Corp Credit card automatic currency dispenser
US3700859A (en) * 1971-03-19 1972-10-24 Ibm Programmable key and lock
GB1429467A (en) * 1972-02-28 1976-03-24 Chubb Integrated Systems Ltd Access- or transactioncontrol equipment
US3846622A (en) * 1972-09-29 1974-11-05 Mosler Safe Co Access control apparatus
US3845470A (en) * 1973-02-08 1974-10-29 Umc Ind Check-controlled vending
US3857019A (en) * 1973-03-05 1974-12-24 Honeywell Inf Systems Card reader data logic with position indication and error detection
DE2350418A1 (de) * 1973-10-08 1975-04-10 Gretag Ag Verfahren und einrichtung zur erstellung und auswertung von faelschungssicheren maschinell lesbaren zahlungsbelegen
US4198619A (en) * 1976-10-28 1980-04-15 Atalla Technovations Corporation Programmable security system and method
US4268715A (en) * 1978-05-03 1981-05-19 Atalla Technovations Method and apparatus for securing data transmissions
GB2030741B (en) * 1978-10-02 1982-11-17 Ibm Data processing terminal with addressable characterising store

Also Published As

Publication number Publication date
NL8004666A (nl) 1981-02-24
CA1159123A (en) 1983-12-20
US4339820A (en) 1982-07-13
GB2057172A (en) 1981-03-25
IT8024246A0 (it) 1980-08-21
SE8005836L (sv) 1981-02-22
AT382474B (de) 1987-02-25
FR2463952B1 (fr) 1987-04-30
JPS6355712B2 (it) 1988-11-04
ATA423980A (de) 1986-07-15
GB2057172B (en) 1984-05-16
JPS5664376A (en) 1981-06-01
DE2933764A1 (de) 1981-03-26
CH650608A5 (de) 1985-07-31
FR2463952A1 (fr) 1981-02-27
DE2933764C2 (de) 1985-02-14

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