ZA865206B - A method of and apparatus for carrying out enciphered radio traffic - Google Patents
A method of and apparatus for carrying out enciphered radio trafficInfo
- Publication number
- ZA865206B ZA865206B ZA865206A ZA865206A ZA865206B ZA 865206 B ZA865206 B ZA 865206B ZA 865206 A ZA865206 A ZA 865206A ZA 865206 A ZA865206 A ZA 865206A ZA 865206 B ZA865206 B ZA 865206B
- Authority
- ZA
- South Africa
- Prior art keywords
- time
- encryption
- code
- connection
- receiving stations
- Prior art date
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
- H04L9/12—Transmitting and receiving encryption devices synchronised or initially set up in a particular manner
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
-
- 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
- H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
- H04L9/16—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms the keys or algorithms being changed during operation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/80—Wireless
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Devices For Checking Fares Or Tickets At Control Points (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Road Signs Or Road Markings (AREA)
- Circuits Of Receivers In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3524941 | 1985-07-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA865206B true ZA865206B (en) | 1987-02-25 |
Family
ID=6275622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA865206A ZA865206B (en) | 1985-07-12 | 1986-07-11 | A method of and apparatus for carrying out enciphered radio traffic |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0209079B1 (xx) |
AT (1) | ATE76235T1 (xx) |
DE (1) | DE3685270D1 (xx) |
TR (1) | TR23067A (xx) |
ZA (1) | ZA865206B (xx) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5001756A (en) * | 1989-08-11 | 1991-03-19 | Motorola, Inc. | Decryption device with variable clock |
SE464553B (sv) * | 1989-09-12 | 1991-05-06 | Ericsson Telefon Ab L M | Synkroniseringsmetod i ett mobilradiosystem |
JP2581440B2 (ja) * | 1994-05-11 | 1997-02-12 | 日本電気株式会社 | スクランブル通信方式 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4245346A (en) * | 1962-02-07 | 1981-01-13 | Magnavox Government And Industrial Electronics Co. | Communication system |
CH540613A (de) * | 1970-12-08 | 1973-08-15 | Gretag Ag | Verfahren und Vorrichtung zur chiffrierten Nachrichtenübermittlung |
DE3150254A1 (de) * | 1981-04-13 | 1983-07-14 | Siemens AG, 1000 Berlin und 8000 München | Einrichtung zur verschluesselten digitalen informationsuebertragung |
-
1986
- 1986-06-10 TR TR371/86A patent/TR23067A/xx unknown
- 1986-07-09 EP EP86109394A patent/EP0209079B1/de not_active Expired - Lifetime
- 1986-07-09 AT AT86109394T patent/ATE76235T1/de not_active IP Right Cessation
- 1986-07-09 DE DE8686109394T patent/DE3685270D1/de not_active Expired - Fee Related
- 1986-07-11 ZA ZA865206A patent/ZA865206B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
ATE76235T1 (de) | 1992-05-15 |
DE3685270D1 (de) | 1992-06-17 |
EP0209079A3 (en) | 1989-01-04 |
EP0209079B1 (de) | 1992-05-13 |
TR23067A (tr) | 1989-02-21 |
EP0209079A2 (de) | 1987-01-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE189752T1 (de) | Verfahren zur steuerungserkennung zwischen einer hauptstelle und einer nebenstelle das verschlüsselte nachrichten benutzt | |
ATE252796T1 (de) | Verfahren und kommunikationssystem unter verwendung einer verschlüsselungseinrichtung | |
EP0631408A3 (de) | Verfahren zur Authentifikation zwischen zwei elektronischen Einrichtungen. | |
EP0155741A3 (en) | Process and apparatus for the synchronisation on a foreign network clock of a digital data transmission device | |
AUPP752398A0 (en) | Secure multi-point data transfer system | |
SE8400169D0 (sv) | Forfarande for synkrinisering av radiosendare for synkron radiosendning | |
WO1999005801A3 (en) | Method and apparatus for data transmission using time gated frequency division duplexing | |
CA2074800A1 (en) | Local oscillating frequency synthesizer for use in a tdma system | |
NO20032430D0 (no) | Startdelgenerering for pakkedatatransmisjon | |
AU3285495A (en) | Time measurement in a communications system, a communications system and a receiver for use in such a system | |
TW370748B (en) | Method of, and system for, transmitting messages | |
ZA865206B (en) | A method of and apparatus for carrying out enciphered radio traffic | |
US4790012A (en) | Encryption-decryption system | |
ES8203182A1 (es) | Procedimiento y dispositivo para la transmision sincrona di-ferencial de datos | |
JPS5763950A (en) | System and device for ciphering | |
KR940017325A (ko) | 위성통신망의 지구국 억세스 제어 정보 송수신 방법 | |
GB1508971A (en) | Teleprinter systems | |
KR980007066A (ko) | 위성통신 시스템용 망동기방법 및 그 장치 | |
JPS647828A (en) | Frame synchronizing system | |
IT1257336B (it) | Metodo di radiocomunicazione a spettro allargato e dispositivo per la sua attuazione. | |
JPS56116353A (en) | Transmission/reception synchronizing system for monitor | |
UA29916A (uk) | Спосіб передачі телемеханічної інформації | |
DK384688D0 (da) | Fremgangsmaade til signaloverfoering | |
Bouvier Jr | Spread spectrum acquisition strategies | |
Seth et al. | Television with multiple audio facility using time division multiplexing |