FR1198894A - Dispositif de production d'une succession d'impulsions - Google Patents
Dispositif de production d'une succession d'impulsionsInfo
- Publication number
- FR1198894A FR1198894A FR1198894DA FR1198894A FR 1198894 A FR1198894 A FR 1198894A FR 1198894D A FR1198894D A FR 1198894DA FR 1198894 A FR1198894 A FR 1198894A
- Authority
- FR
- France
- Prior art keywords
- succession
- pulses
- producing
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
- H04L9/0656—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
- H04L9/0662—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher with particular pseudorandom sequence generator
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Facsimile Transmission Control (AREA)
- Burglar Alarm Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET13281A DE1054491B (de) | 1957-02-26 | 1957-02-26 | Anordnung zur Erzeugung von n-stelligen, binaeren Schluesselzahlen zur Verschluesselung von binaeren Signalen |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1198894A true FR1198894A (fr) | 1959-12-10 |
Family
ID=7547284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1198894D Expired FR1198894A (fr) | 1957-02-26 | 1958-02-17 | Dispositif de production d'une succession d'impulsions |
Country Status (5)
Country | Link |
---|---|
US (1) | US3038028A (it) |
DE (1) | DE1054491B (it) |
FR (1) | FR1198894A (it) |
GB (1) | GB874890A (it) |
NL (2) | NL225293A (it) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1156847B (de) * | 1959-12-22 | 1963-11-07 | Prec Mecanique Labinal | Codiereinrichtung mit einem Codeumsetzer fuer codierte Funksignale |
NL267662A (it) * | 1960-08-02 | |||
NL279100A (it) * | 1961-05-30 | |||
NL283787A (it) * | 1961-10-02 | |||
DE1196713B (de) * | 1962-08-30 | 1965-07-15 | Deutsche Bundespost | Verfahren zur Sprachverschluesselung |
US5018685A (en) * | 1964-05-27 | 1991-05-28 | The United States Of America As Represented By The Secretary Of The Navy | Data link and return link |
US5004185A (en) * | 1964-08-31 | 1991-04-02 | The United States Of America As Represented By The Secretary Of The Navy | Air-surface-missile data link system |
US4434322A (en) | 1965-08-19 | 1984-02-28 | Racal Data Communications Inc. | Coded data transmission system |
US4283602A (en) * | 1966-06-03 | 1981-08-11 | International Telephone And Telegraph Corporation | Cryptographically secure communication system |
US3522374A (en) * | 1966-06-17 | 1970-07-28 | Int Standard Electric Corp | Ciphering unit |
US4171513A (en) * | 1966-09-06 | 1979-10-16 | Sanders Associates, Inc. | Secure communications system |
GB1190809A (en) * | 1967-06-26 | 1970-05-06 | Ericsson Telefon Ab L M | Improvements in and relating to the Generation of a Pulse Code |
US3715508A (en) * | 1967-09-15 | 1973-02-06 | Ibm | Switching circuits employing orthogonal and quasi-orthogonal pseudo-random code sequences |
FR1576416A (it) * | 1968-04-10 | 1969-08-01 | ||
US3627928A (en) * | 1969-02-04 | 1971-12-14 | Litton Systems Inc | Telegraph privacy system |
DE1911175C3 (de) * | 1969-03-05 | 1982-03-11 | Aktiebolaget Transvertex, Varby | Chiffriereinrichtung |
US3781473A (en) * | 1971-04-15 | 1973-12-25 | Datotek | Random digital code generator |
US3796830A (en) * | 1971-11-02 | 1974-03-12 | Ibm | Recirculating block cipher cryptographic system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2406046A (en) * | 1942-05-21 | 1946-08-20 | Bell Telephone Labor Inc | Telegraph signal enciphering key tape producing device |
US2406032A (en) * | 1942-11-23 | 1946-08-20 | Bell Telephone Labor Inc | Telegraph signal enciphering mechanism |
US2403888A (en) * | 1944-02-12 | 1946-07-09 | American Telephone & Telegraph | Enciphering and deciphering system |
CH311424A (de) * | 1950-04-22 | 1955-11-30 | Gretener Edgar Ing Dr | Verfahren zur Geheimhaltung von Sprache in Nachrichtenübermittlungskanälen. |
US2794851A (en) * | 1952-02-08 | 1957-06-04 | Zenith Radio Corp | Code storage device |
-
0
- NL NL109840D patent/NL109840C/xx active
- NL NL225293D patent/NL225293A/xx unknown
-
1957
- 1957-02-26 DE DET13281A patent/DE1054491B/de active Pending
-
1958
- 1958-02-07 US US713933A patent/US3038028A/en not_active Expired - Lifetime
- 1958-02-17 FR FR1198894D patent/FR1198894A/fr not_active Expired
- 1958-02-26 GB GB6306/58A patent/GB874890A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL225293A (it) | |
NL109840C (it) | |
GB874890A (en) | 1961-08-10 |
DE1054491B (de) | 1959-04-09 |
US3038028A (en) | 1962-06-05 |
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