BE642819A - - Google Patents
Info
- Publication number
- BE642819A BE642819A BE642819A BE642819A BE642819A BE 642819 A BE642819 A BE 642819A BE 642819 A BE642819 A BE 642819A BE 642819 A BE642819 A BE 642819A BE 642819 A BE642819 A BE 642819A
- Authority
- BE
- Belgium
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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Communication Control (AREA)
- Mobile Radio Communication Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO14719463 | 1963-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE642819A true BE642819A (da) | 1964-07-22 |
Family
ID=19908744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE642819A BE642819A (da) | 1963-01-22 | 1964-01-22 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3349175A (da) |
| BE (1) | BE642819A (da) |
| DE (1) | DE1203309B (da) |
| GB (1) | GB1008831A (da) |
| NL (1) | NL6400264A (da) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3639682A (en) * | 1969-12-12 | 1972-02-01 | Int Standard Electric Corp | Telegraph line scanning system |
| US3878331A (en) * | 1972-10-20 | 1975-04-15 | Barrie O Morgan | Digital cryptographic system and method |
| US4642424A (en) * | 1984-01-03 | 1987-02-10 | At&T Information Systems Inc. | Cryptographic transmission system |
| US6944299B1 (en) * | 1998-12-02 | 2005-09-13 | At&T Wireless Services, Inc. | Method for synchronous encryption over a communication medium |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2924658A (en) * | 1957-07-09 | 1960-02-09 | Teletype Corp | Synchronous electronic multiplex telegraph ciphering system |
| FR1258261A (fr) * | 1960-02-18 | 1961-04-14 | Sagem | Système de transmission télégraphique avec chiffrement en ligne |
-
0
- GB GB1008831D patent/GB1008831A/en active Active
-
1964
- 1964-01-06 US US335801A patent/US3349175A/en not_active Expired - Lifetime
- 1964-01-16 NL NL6400264A patent/NL6400264A/xx unknown
- 1964-01-21 DE DEST21574A patent/DE1203309B/de active Pending
- 1964-01-22 BE BE642819A patent/BE642819A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3349175A (en) | 1967-10-24 |
| DE1203309B (de) | 1965-10-21 |
| NL6400264A (da) | 1964-07-23 |
| GB1008831A (da) |