IT951865B - Procedimento e dispositivo per la trasmissione di informazioni cifrate - Google Patents
Procedimento e dispositivo per la trasmissione di informazioni cifrateInfo
- Publication number
- IT951865B IT951865B IT2328772A IT2328772A IT951865B IT 951865 B IT951865 B IT 951865B IT 2328772 A IT2328772 A IT 2328772A IT 2328772 A IT2328772 A IT 2328772A IT 951865 B IT951865 B IT 951865B
- Authority
- IT
- Italy
- Prior art keywords
- procedure
- transmission
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Paper (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH563571A CH539989A (de) | 1971-04-19 | 1971-04-19 | Verfahren und Vorrichtung zur chiffrierten Nachrichtenübermittlung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT951865B true IT951865B (it) | 1973-07-10 |
Family
ID=4296906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT2328772A IT951865B (it) | 1971-04-19 | 1972-04-18 | Procedimento e dispositivo per la trasmissione di informazioni cifrate |
Country Status (9)
| Country | Link |
|---|---|
| CA (1) | CA957947A (it) |
| CH (1) | CH539989A (it) |
| DE (1) | DE2218447C3 (it) |
| FR (1) | FR2136503A5 (it) |
| GB (1) | GB1388035A (it) |
| IT (1) | IT951865B (it) |
| NL (1) | NL7205255A (it) |
| NO (1) | NO135226C (it) |
| SE (1) | SE380414B (it) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH578807A5 (it) * | 1974-11-05 | 1976-08-13 | Patelhold Patentverwertung | |
| CH581930A5 (it) * | 1975-02-05 | 1976-11-15 | Europ Handelsges Anst | |
| DE2507805C1 (de) * | 1975-02-24 | 1993-07-15 | Siemens Ag | Verfahren zur Einphasung von Schluesselgeraeten |
| DE2706421C2 (de) * | 1977-02-16 | 1979-03-15 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren zum Einstellen von Schlüsseltextgeneratoren in Chiffriergeräten |
| DE2908979C3 (de) * | 1979-03-08 | 1982-03-18 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Verfahren zur verschlüsselten Übertragung von Faksimile-Daten |
| US4288659A (en) * | 1979-05-21 | 1981-09-08 | Atalla Technovations | Method and means for securing the distribution of encoding keys |
| DE3064903D1 (en) * | 1979-06-08 | 1983-10-27 | Gretag Ag | Apparatus for enciphered transmission of messages |
| DE3003998A1 (de) * | 1980-02-04 | 1981-09-24 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | System zur ver- und entschluesselung von daten |
| DE3370918D1 (en) * | 1982-08-19 | 1987-05-14 | Bbc Brown Boveri & Cie | Method of synchronising encryption and decryption during the transmission of digital encrypted data, and apparatus for carrying out said method |
| SE447859B (sv) * | 1984-12-10 | 1986-12-15 | Datakonsult I Malmo Ab | Krypteringsanordning samt dekrypteringsanordning |
| AU601370B2 (en) * | 1986-06-09 | 1990-09-13 | Datakonsult I Malmo Ab | Ciphering and deciphering device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1216921C2 (de) * | 1963-12-24 | 1976-05-13 | Gretag Ag | Verfahren zur Synchronisierung der Ver- und Entschluesselung von impulsfoermigen, binaer codierten Nachrichten, bei welchem sendeseitig die Nachrichtenklarimpulse mit Schluessel-impulsen gemischt werden |
-
1971
- 1971-04-19 CH CH563571A patent/CH539989A/de not_active IP Right Cessation
-
1972
- 1972-04-17 DE DE19722218447 patent/DE2218447C3/de not_active Expired
- 1972-04-17 NO NO132372A patent/NO135226C/no unknown
- 1972-04-18 CA CA139,894A patent/CA957947A/en not_active Expired
- 1972-04-18 SE SE503172A patent/SE380414B/xx unknown
- 1972-04-18 IT IT2328772A patent/IT951865B/it active
- 1972-04-18 FR FR7213651A patent/FR2136503A5/fr not_active Expired
- 1972-04-19 GB GB1820972A patent/GB1388035A/en not_active Expired
- 1972-04-19 NL NL7205255A patent/NL7205255A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2136503A5 (it) | 1972-12-22 |
| DE2218447C3 (de) | 1981-05-14 |
| CH539989A (de) | 1973-07-31 |
| DE2218447B2 (de) | 1980-09-11 |
| SE380414B (sv) | 1975-11-03 |
| DE2218447A1 (de) | 1972-10-26 |
| NO135226C (it) | 1977-03-02 |
| NO135226B (it) | 1976-11-22 |
| GB1388035A (en) | 1975-03-19 |
| CA957947A (en) | 1974-11-19 |
| NL7205255A (it) | 1972-10-23 |
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