FR2117478A5 - - Google Patents
Info
- Publication number
- FR2117478A5 FR2117478A5 FR7143864A FR7143864A FR2117478A5 FR 2117478 A5 FR2117478 A5 FR 2117478A5 FR 7143864 A FR7143864 A FR 7143864A FR 7143864 A FR7143864 A FR 7143864A FR 2117478 A5 FR2117478 A5 FR 2117478A5
- 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
- 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
- H04L9/06—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
-
- 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
- H04L2209/12—Details relating to cryptographic hardware or logic circuitry
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1813470A CH540613A (en) | 1970-12-08 | 1970-12-08 | Method and device for encrypted message transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2117478A5 true FR2117478A5 (en) | 1972-07-21 |
Family
ID=4430724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7143864A Expired FR2117478A5 (en) | 1970-12-08 | 1971-12-07 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3808365A (en) |
| CA (1) | CA956891A (en) |
| CH (1) | CH540613A (en) |
| DE (1) | DE2160132A1 (en) |
| FR (1) | FR2117478A5 (en) |
| GB (1) | GB1379740A (en) |
| IT (1) | IT943759B (en) |
| SE (1) | SE378496B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1980001635A1 (en) * | 1979-02-06 | 1980-08-07 | Secretaire Detat Postes & Tele | Information transmission system between a transmission center and receivers,this system being provided with a control means for access to the transmitted information |
| WO1980001636A1 (en) * | 1979-02-06 | 1980-08-07 | Secretaire Detat Postes & Tele | Videotex system provided with information access control means |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4166922A (en) * | 1975-04-14 | 1979-09-04 | Datotek, Inc. | Multi-mode digital enciphering system with repeated priming sequences |
| US4107458A (en) * | 1976-08-23 | 1978-08-15 | Constant James N | Cipher computer and cryptographic system |
| US4133973A (en) * | 1976-11-10 | 1979-01-09 | Datotek, Inc. | Digital cryptographic system having synchronous and asynchronous capabilities |
| DE3039105A1 (en) * | 1980-10-16 | 1982-04-29 | Siemens AG, 1000 Berlin und 8000 München | DEVICE FOR ENCRYPTED INFORMATION TRANSFER |
| CA1213972A (en) * | 1983-07-13 | 1986-11-12 | Takashi Okada | Apparatus for scrambling a television signal |
| US4596898A (en) * | 1984-03-14 | 1986-06-24 | Computer Security Systems, Inc. | Method and apparatus for protecting stored and transmitted data from compromise or interception |
| JPS6120442A (en) * | 1984-07-09 | 1986-01-29 | Toshiba Corp | Chargeable broadcasting system |
| US4747139A (en) * | 1984-08-27 | 1988-05-24 | Taaffe James L | Software security method and systems |
| JPH0683202B2 (en) * | 1985-06-25 | 1994-10-19 | 日本電気株式会社 | Data encoding / decoding device |
| TR23067A (en) * | 1985-07-12 | 1989-02-21 | Siemens Ag | A METHOD AND EQUIPMENT TO INCRETE THE ENCRYPED RADIO TRAFFIC |
| EP0258838A3 (en) * | 1986-09-01 | 1991-01-23 | Siemens Aktiengesellschaft | Process for actualizing the local time of a user of an information tranfer system |
| DE3730134C1 (en) * | 1987-09-09 | 1996-05-30 | Siemens Ag | Encryptor operated by authorised card for coded digital transmission |
| US4972474A (en) * | 1989-05-01 | 1990-11-20 | Cylink Corporation | Integer encryptor |
| US7577188B1 (en) * | 2001-09-13 | 2009-08-18 | Cisco Technology, Inc. | Physical layer and MAC enhancements using complex sequences on a wireless channel |
| EP1526648A1 (en) * | 2003-10-21 | 2005-04-27 | Mitsubishi Electric Information Technology Centre Europe B.V. | System and device for modulating UWB pulse sequences |
| CN106533529B (en) * | 2016-09-27 | 2020-03-03 | 北京无线电计量测试研究所 | Satellite two-way time comparison modulation and demodulation system and method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL267662A (en) * | 1960-08-02 | |||
| US3614316A (en) * | 1964-05-20 | 1971-10-19 | Us Navy | Secure communication system |
| CH439820A (en) * | 1964-11-06 | 1967-07-15 | Gretag Ag | Method and device for encryption and decryption of message signals |
-
1970
- 1970-12-08 CH CH1813470A patent/CH540613A/en not_active IP Right Cessation
-
1971
- 1971-12-03 DE DE19712160132 patent/DE2160132A1/en active Pending
- 1971-12-06 US US00205098A patent/US3808365A/en not_active Expired - Lifetime
- 1971-12-06 IT IT32099/71A patent/IT943759B/en active
- 1971-12-07 CA CA129,503A patent/CA956891A/en not_active Expired
- 1971-12-07 SE SE7115689A patent/SE378496B/xx unknown
- 1971-12-07 FR FR7143864A patent/FR2117478A5/fr not_active Expired
- 1971-12-07 GB GB5684971A patent/GB1379740A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1980001635A1 (en) * | 1979-02-06 | 1980-08-07 | Secretaire Detat Postes & Tele | Information transmission system between a transmission center and receivers,this system being provided with a control means for access to the transmitted information |
| WO1980001636A1 (en) * | 1979-02-06 | 1980-08-07 | Secretaire Detat Postes & Tele | Videotex system provided with information access control means |
| EP0014652A1 (en) * | 1979-02-06 | 1980-08-20 | Etablissement Public de Diffusion dit "Télédiffusion de France" | Videography system provided with control means for gaining access to the information |
| EP0014653A1 (en) * | 1979-02-06 | 1980-08-20 | Etablissement Public de Diffusion dit "Télédiffusion de France" | System for conveying information between a transmitting centre and receiving stations, the system being provided with control means for gaining access to the conveyed information |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2160132A1 (en) | 1972-06-22 |
| CH540613A (en) | 1973-08-15 |
| CA956891A (en) | 1974-10-29 |
| SE378496B (en) | 1975-09-01 |
| US3808365A (en) | 1974-04-30 |
| GB1379740A (en) | 1975-01-08 |
| IT943759B (en) | 1973-04-10 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |