IT943759B - Procedimento e dispositivo per tra smettere informazioni cifrate - Google Patents
Procedimento e dispositivo per tra smettere informazioni cifrateInfo
- Publication number
- IT943759B IT943759B IT32099/71A IT3209971A IT943759B IT 943759 B IT943759 B IT 943759B IT 32099/71 A IT32099/71 A IT 32099/71A IT 3209971 A IT3209971 A IT 3209971A IT 943759 B IT943759 B IT 943759B
- Authority
- IT
- Italy
- Prior art keywords
- ending
- procedure
- encrypted information
- encrypted
- information
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Storage Device Security (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1813470A CH540613A (de) | 1970-12-08 | 1970-12-08 | Verfahren und Vorrichtung zur chiffrierten Nachrichtenübermittlung |
Publications (1)
Publication Number | Publication Date |
---|---|
IT943759B true IT943759B (it) | 1973-04-10 |
Family
ID=4430724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT32099/71A IT943759B (it) | 1970-12-08 | 1971-12-06 | Procedimento e dispositivo per tra smettere informazioni cifrate |
Country Status (8)
Country | Link |
---|---|
US (1) | US3808365A (de) |
CA (1) | CA956891A (de) |
CH (1) | CH540613A (de) |
DE (1) | DE2160132A1 (de) |
FR (1) | FR2117478A5 (de) |
GB (1) | GB1379740A (de) |
IT (1) | IT943759B (de) |
SE (1) | SE378496B (de) |
Families Citing this family (18)
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 |
FR2448824A1 (fr) * | 1979-02-06 | 1980-09-05 | Telediffusion Fse | Systeme de videotex muni de moyens de controle d'acces a l'information |
FR2448825A1 (fr) * | 1979-02-06 | 1980-09-05 | Telediffusion Fse | Systeme de transmission d'information entre un centre d'emission et des postes recepteurs, ce systeme etant muni d'un moyen de controle de l'acces a l'information transmise |
DE3039105A1 (de) * | 1980-10-16 | 1982-04-29 | Siemens AG, 1000 Berlin und 8000 München | Einrichtung zur verschluesselten informationsuebertragung |
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 (ja) * | 1984-07-09 | 1986-01-29 | Toshiba Corp | 有料放送方式 |
US4747139A (en) * | 1984-08-27 | 1988-05-24 | Taaffe James L | Software security method and systems |
JPH0683202B2 (ja) * | 1985-06-25 | 1994-10-19 | 日本電気株式会社 | デ−タ符号化/復号化装置 |
TR23067A (tr) * | 1985-07-12 | 1989-02-21 | Siemens Ag | Sifrelenmis radyo trafigini icra etmek icin bir metod ve cihaz |
EP0258838A3 (de) * | 1986-09-01 | 1991-01-23 | Siemens Aktiengesellschaft | Verfahren zum Aktualisieren der lokal erzeugten Uhrzeit eines Anwendersystems in einem Informationsübertragungssystem |
DE3730134C1 (de) * | 1987-09-09 | 1996-05-30 | Siemens Ag | Schlüsselgerät |
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 (de) * | 2003-10-21 | 2005-04-27 | Mitsubishi Electric Information Technology Centre Europe B.V. | Systeme und Vorrichtung zur Modulation von UWB-Pulssequenzen |
CN106533529B (zh) * | 2016-09-27 | 2020-03-03 | 北京无线电计量测试研究所 | 一种卫星双向时间比对的调制解调***与方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL267662A (de) * | 1960-08-02 | |||
US3614316A (en) * | 1964-05-20 | 1971-10-19 | Us Navy | Secure communication system |
CH439820A (de) * | 1964-11-06 | 1967-07-15 | Gretag Ag | Verfahren und Einrichtung zur Ver- und Entschlüsselung von Nachrichtensignalen |
-
1970
- 1970-12-08 CH CH1813470A patent/CH540613A/de not_active IP Right Cessation
-
1971
- 1971-12-03 DE DE19712160132 patent/DE2160132A1/de active Pending
- 1971-12-06 IT IT32099/71A patent/IT943759B/it active
- 1971-12-06 US US00205098A patent/US3808365A/en not_active Expired - Lifetime
- 1971-12-07 SE SE7115689A patent/SE378496B/xx unknown
- 1971-12-07 CA CA129,503A patent/CA956891A/en not_active Expired
- 1971-12-07 FR FR7143864A patent/FR2117478A5/fr not_active Expired
- 1971-12-07 GB GB5684971A patent/GB1379740A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1379740A (en) | 1975-01-08 |
FR2117478A5 (de) | 1972-07-21 |
US3808365A (en) | 1974-04-30 |
CH540613A (de) | 1973-08-15 |
DE2160132A1 (de) | 1972-06-22 |
SE378496B (de) | 1975-09-01 |
CA956891A (en) | 1974-10-29 |
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