FR2506101B1 - - Google Patents
Info
- Publication number
- FR2506101B1 FR2506101B1 FR8109428A FR8109428A FR2506101B1 FR 2506101 B1 FR2506101 B1 FR 2506101B1 FR 8109428 A FR8109428 A FR 8109428A FR 8109428 A FR8109428 A FR 8109428A FR 2506101 B1 FR2506101 B1 FR 2506101B1
- Authority
- FR
- France
- 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
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
-
- 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
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radio Relay Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8109428A FR2506101A1 (fr) | 1981-05-12 | 1981-05-12 | Procede de protection des telecommandes de satellites contre les intrusions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8109428A FR2506101A1 (fr) | 1981-05-12 | 1981-05-12 | Procede de protection des telecommandes de satellites contre les intrusions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2506101A1 FR2506101A1 (fr) | 1982-11-19 |
| FR2506101B1 true FR2506101B1 (enExample) | 1984-05-25 |
Family
ID=9258340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8109428A Granted FR2506101A1 (fr) | 1981-05-12 | 1981-05-12 | Procede de protection des telecommandes de satellites contre les intrusions |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2506101A1 (enExample) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4654480A (en) * | 1985-11-26 | 1987-03-31 | Weiss Jeffrey A | Method and apparatus for synchronizing encrypting and decrypting systems |
| US4688250A (en) * | 1986-01-29 | 1987-08-18 | Rca Corporation | Apparatus and method for effecting a key change via a cryptographically protected link |
| US5140694A (en) * | 1989-08-23 | 1992-08-18 | At&T Bell Laboratories | Anti-intrusion defeator and locator for communication satellites |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4077005A (en) * | 1971-06-18 | 1978-02-28 | The United States Of America As Represented By The Secretary Of The Navy | Secure position identity and time reporting system |
-
1981
- 1981-05-12 FR FR8109428A patent/FR2506101A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2506101A1 (fr) | 1982-11-19 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |