FR1159951A - Procédé et installation pour le chiffrage de transmissions d'informations - Google Patents
Procédé et installation pour le chiffrage de transmissions d'informationsInfo
- Publication number
- FR1159951A FR1159951A FR1159951DA FR1159951A FR 1159951 A FR1159951 A FR 1159951A FR 1159951D A FR1159951D A FR 1159951DA FR 1159951 A FR1159951 A FR 1159951A
- Authority
- FR
- France
- Prior art keywords
- encryption
- installation
- information transmissions
- transmissions
- information
- 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
- G09C1/10—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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Transmission Devices (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB36601A DE1010996B (de) | 1955-07-23 | 1955-07-23 | Verfahren und Einrichtung zur Verschluesselung von Nachrichtenuebertragungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1159951A true FR1159951A (fr) | 1958-07-04 |
Family
ID=6964951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1159951D Expired FR1159951A (fr) | 1955-07-23 | 1956-07-23 | Procédé et installation pour le chiffrage de transmissions d'informations |
Country Status (6)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3317680A (en) * | 1963-04-10 | 1967-05-02 | Harold C Porter | Device for repetitively scanning selected small increments of data |
| GB1136096A (en) * | 1965-11-19 | 1968-12-11 | Nat Res Dev | Improvements in or relating to magnetic tape recording devices |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1749744A (en) * | 1926-02-01 | 1930-03-04 | Fuller Brush Co | Brush structure |
| GB453660A (en) * | 1935-04-03 | 1936-09-16 | Morgan Cyprian Mcmahon O Brien | Improvements in or relating to machines for enciphering and deciphering messages |
| DE958111C (de) * | 1936-10-24 | 1957-01-24 | IBM Deutschland Internationale Buro-Maschmen Gesellschaft mbH, Sin delfmgen (Wurtt) | Verschlüsselungseinrichtung fur Chiffrier-Schreibmaschinen |
| NL57170C (US07709020-20100504-C00041.png) * | 1938-08-26 | |||
| US2690473A (en) * | 1949-07-16 | 1954-09-28 | Times Facsimile Corp | Facsimile recording system and apparatus |
| US2644119A (en) * | 1949-07-27 | 1953-06-30 | John L Harris | Cam controlled device |
| US2773120A (en) * | 1950-11-30 | 1956-12-04 | Rca Corp | Magnetic recording of high frequency signals |
| US2753034A (en) * | 1951-05-07 | 1956-07-03 | Hell Rudolf | Coding machine |
| US2797260A (en) * | 1952-01-30 | 1957-06-25 | Zenith Radio Corp | Subscription television system |
| US2794851A (en) * | 1952-02-08 | 1957-06-04 | Zenith Radio Corp | Code storage device |
-
0
- NL NL100433D patent/NL100433C/xx active
- NL NL209117D patent/NL209117A/xx unknown
-
1955
- 1955-07-23 DE DEB36601A patent/DE1010996B/de active Granted
-
1956
- 1956-07-20 GB GB22515/56A patent/GB826757A/en not_active Expired
- 1956-07-20 CH CH344451D patent/CH344451A/de unknown
- 1956-07-23 FR FR1159951D patent/FR1159951A/fr not_active Expired
- 1956-07-23 US US599507A patent/US2941036A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE1010996B (de) | 1957-06-27 |
| US2941036A (en) | 1960-06-14 |
| CH344451A (de) | 1960-02-15 |
| DE1010996C2 (US07709020-20100504-C00041.png) | 1957-12-05 |
| GB826757A (en) | 1960-01-20 |
| NL209117A (US07709020-20100504-C00041.png) | |
| NL100433C (US07709020-20100504-C00041.png) |
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