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FR1382873A - Improvements to encryption machines - Google Patents

Improvements to encryption machines

Info

Publication number
FR1382873A
FR1382873A FR964793A FR964793A FR1382873A FR 1382873 A FR1382873 A FR 1382873A FR 964793 A FR964793 A FR 964793A FR 964793 A FR964793 A FR 964793A FR 1382873 A FR1382873 A FR 1382873A
Authority
FR
France
Prior art keywords
encryption machines
encryption
machines
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
FR964793A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anstalt Europaeische Handelsgesellschaft
Original Assignee
Anstalt Europaeische Handelsgesellschaft
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 CH227963A external-priority patent/CH411027A/en
Application filed by Anstalt Europaeische Handelsgesellschaft filed Critical Anstalt Europaeische Handelsgesellschaft
Priority to FR964793A priority Critical patent/FR1382873A/en
Application granted granted Critical
Publication of FR1382873A publication Critical patent/FR1382873A/en
Expired legal-status Critical Current

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
    • G09C1/14—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 involving removable or interchangeable coding numbers, e.g. master tapes, punched cards

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR964793A 1963-02-22 1964-02-22 Improvements to encryption machines Expired FR1382873A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR964793A FR1382873A (en) 1963-02-22 1964-02-22 Improvements to encryption machines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH227963A CH411027A (en) 1963-02-22 1963-02-22 Additional device for an encryption machine for creating and evaluating perforated information carriers
FR964793A FR1382873A (en) 1963-02-22 1964-02-22 Improvements to encryption machines

Publications (1)

Publication Number Publication Date
FR1382873A true FR1382873A (en) 1964-12-18

Family

ID=25689988

Family Applications (1)

Application Number Title Priority Date Filing Date
FR964793A Expired FR1382873A (en) 1963-02-22 1964-02-22 Improvements to encryption machines

Country Status (1)

Country Link
FR (1) FR1382873A (en)

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