FR937926A - Encryption and decryption method and machine for implementing this method - Google Patents
Encryption and decryption method and machine for implementing this methodInfo
- Publication number
- FR937926A FR937926A FR937926DA FR937926A FR 937926 A FR937926 A FR 937926A FR 937926D A FR937926D A FR 937926DA FR 937926 A FR937926 A FR 937926A
- Authority
- FR
- France
- Prior art keywords
- encryption
- implementing
- machine
- decryption
- decryption method
- 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
- G09C1/06—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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR937926T | 1946-11-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR937926A true FR937926A (en) | 1948-08-31 |
Family
ID=9458192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR937926D Expired FR937926A (en) | 1946-11-22 | 1946-11-22 | Encryption and decryption method and machine for implementing this method |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR937926A (en) |
-
1946
- 1946-11-22 FR FR937926D patent/FR937926A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH284285A (en) | Culture method and machine for its implementation. | |
FR941556A (en) | Method for adjusting turbo-reactors and apparatus for implementing this method | |
CH260521A (en) | Molding process and apparatus for carrying out this process. | |
CH256612A (en) | Sawing process and tool for implementing this process. | |
FR937926A (en) | Encryption and decryption method and machine for implementing this method | |
FR923016A (en) | Absorption refrigeration process and machine for implementing this process | |
CH271071A (en) | Capsule, method of manufacturing this capsule and apparatus for implementing this method. | |
FR972593A (en) | Grinding process, and roller machines for implementing this process | |
FR934493A (en) | Method and devices for curling hair | |
CH262016A (en) | Process for cutting spectacle lenses and spinning for its implementation. | |
FR1027185A (en) | Pavement reprofiling method and machine for implementing this method | |
FR919856A (en) | Absorption refrigeration process and refrigeration machine for implementing this process | |
CH269830A (en) | Method for checking the section of yarns and apparatus for carrying out this method. | |
FR935567A (en) | Drying process and apparatus for carrying out this process | |
CH260155A (en) | Process for the rapid installation of screws and screwdrivers for the implementation of this process. | |
FR1004155A (en) | Improved welding process and apparatus for carrying out this process | |
FR997847A (en) | Continuous diffusion method and apparatus for carrying out this method | |
FR1002061A (en) | Weaving process and machine implementing this process | |
FR934290A (en) | Weaving process, resulting product and apparatus for its implementation | |
FR933522A (en) | Calculation method and apparatus for carrying out this method | |
CH273756A (en) | Process for tapping parts, in particular nuts, and machine for implementing this process. | |
FR953221A (en) | Method of molding bandages and apparatus for carrying out this method | |
FR920348A (en) | Construction process, materials and machines for its implementation | |
FR921454A (en) | Control method for oleo-pneumatic machines and machine for the implementation of this method | |
FR944416A (en) | Process for the construction of works, and formwork for the implementation of this process |