DE2142413C3 - Vorrichtung zur Erzeugung von Schlüsselimpulsfolgen - Google Patents
Vorrichtung zur Erzeugung von SchlüsselimpulsfolgenInfo
- Publication number
- DE2142413C3 DE2142413C3 DE19712142413 DE2142413A DE2142413C3 DE 2142413 C3 DE2142413 C3 DE 2142413C3 DE 19712142413 DE19712142413 DE 19712142413 DE 2142413 A DE2142413 A DE 2142413A DE 2142413 C3 DE2142413 C3 DE 2142413C3
- Authority
- DE
- Germany
- Prior art keywords
- time
- feedback
- circuit
- data flow
- shift register
- Prior art date
- 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
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 title claims description 30
- 230000001419 dependent effect Effects 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 2
- 230000006870 function Effects 0.000 claims 2
- 238000000605 extraction Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 210000003608 fece Anatomy 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 241000251730 Chondrichthyes Species 0.000 description 1
- 240000002407 Solanum quitoense Species 0.000 description 1
- 208000004350 Strabismus Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- H04L9/06—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
- H04L9/0662—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher with particular pseudorandom sequence generator
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Storage Device Security (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1259270A CH530742A (de) | 1970-08-24 | 1970-08-24 | Vorrichtung zur Erzeugung von Schlüsselimpulsfolgen |
| CH1080771 | 1971-07-22 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2142413A1 DE2142413A1 (de) | 1972-03-02 |
| DE2142413B2 DE2142413B2 (de) | 1979-09-27 |
| DE2142413C3 true DE2142413C3 (de) | 1980-07-17 |
Family
ID=25707318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712142413 Expired DE2142413C3 (de) | 1970-08-24 | 1971-08-24 | Vorrichtung zur Erzeugung von Schlüsselimpulsfolgen |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA947661A (enExample) |
| DE (1) | DE2142413C3 (enExample) |
| FR (1) | FR2107065A5 (enExample) |
| GB (1) | GB1364518A (enExample) |
| SE (1) | SE375673B (enExample) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0028273B1 (de) * | 1979-11-03 | 1983-09-28 | PATELHOLD Patentverwertungs- & Elektro-Holding AG | Verfahren und Einrichtung zur Erzeugung von Geheimschlüsseln |
| SE435979B (sv) * | 1983-03-14 | 1984-10-29 | Ericsson Telefon Ab L M | Anordning for kryptering/dekryptering av digitala meddelanden |
| EP0146865B1 (de) * | 1983-12-24 | 1991-02-27 | ANT Nachrichtentechnik GmbH | Verfahren zum Erzeugen zufallsähnlicher Binärzeichenfolgen |
-
1971
- 1971-08-17 CA CA120,708A patent/CA947661A/en not_active Expired
- 1971-08-18 SE SE1052471A patent/SE375673B/xx unknown
- 1971-08-23 FR FR7130598A patent/FR2107065A5/fr not_active Expired
- 1971-08-24 GB GB3975971A patent/GB1364518A/en not_active Expired
- 1971-08-24 DE DE19712142413 patent/DE2142413C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1364518A (en) | 1974-08-21 |
| DE2142413A1 (de) | 1972-03-02 |
| FR2107065A5 (enExample) | 1972-05-05 |
| CA947661A (en) | 1974-05-21 |
| SE375673B (enExample) | 1975-04-21 |
| DE2142413B2 (de) | 1979-09-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| C3 | Grant after two publication steps (3rd publication) | ||
| 8339 | Ceased/non-payment of the annual fee |