FR492681A - Appareil pour le chiffrage - Google Patents

Appareil pour le chiffrage

Info

Publication number
FR492681A
FR492681A FR492681A FR492681DA FR492681A FR 492681 A FR492681 A FR 492681A FR 492681 A FR492681 A FR 492681A FR 492681D A FR492681D A FR 492681DA FR 492681 A FR492681 A FR 492681A
Authority
FR
France
Prior art keywords
encryption device
encryption
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
FR492681A
Other languages
English (en)
Inventor
Luigi Nicoletti
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR492681A publication Critical patent/FR492681A/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
    • G09C1/04—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 with sign carriers or indicators moved relative to one another to positions determined by a permutation code, or key, so as to indicate the appropriate corresponding clear or ciphered text

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR492681A 1918-02-01 1918-11-04 Appareil pour le chiffrage Expired FR492681A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT492681X 1918-02-01

Publications (1)

Publication Number Publication Date
FR492681A true FR492681A (fr) 1919-07-16

Family

ID=1528520

Family Applications (1)

Application Number Title Priority Date Filing Date
FR492681A Expired FR492681A (fr) 1918-02-01 1918-11-04 Appareil pour le chiffrage

Country Status (1)

Country Link
FR (1) FR492681A (fr)

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