FR492681A - Encryption device - Google Patents
Encryption deviceInfo
- 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
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT492681X | 1918-02-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR492681A true FR492681A (en) | 1919-07-16 |
Family
ID=1528520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR492681A Expired FR492681A (en) | 1918-02-01 | 1918-11-04 | Encryption device |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR492681A (en) |
-
1918
- 1918-11-04 FR FR492681A patent/FR492681A/en not_active Expired
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