FR1126018A - Dispositif électrique permettant la substitution conventionnelle de signes d'écritue - Google Patents

Dispositif électrique permettant la substitution conventionnelle de signes d'écritue

Info

Publication number
FR1126018A
FR1126018A FR1126018DA FR1126018A FR 1126018 A FR1126018 A FR 1126018A FR 1126018D A FR1126018D A FR 1126018DA FR 1126018 A FR1126018 A FR 1126018A
Authority
FR
France
Prior art keywords
electrical device
device allowing
conventional substitution
written signs
signs
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
Other languages
English (en)
Inventor
Joseph-Auguste Raffalli
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
Application granted granted Critical
Publication of FR1126018A publication Critical patent/FR1126018A/fr
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
    • G09C1/10—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
    • G09C1/12—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 comprising contact-bearing permutation discs

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR1126018D 1955-05-09 1955-05-09 Dispositif électrique permettant la substitution conventionnelle de signes d'écritue Expired FR1126018A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1126018T 1955-05-09

Publications (1)

Publication Number Publication Date
FR1126018A true FR1126018A (fr) 1956-11-13

Family

ID=9634820

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1126018D Expired FR1126018A (fr) 1955-05-09 1955-05-09 Dispositif électrique permettant la substitution conventionnelle de signes d'écritue

Country Status (1)

Country Link
FR (1) FR1126018A (fr)

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