ES392921A1 - Method of enciphered information transmission by time-interchange of information elements - Google Patents
Method of enciphered information transmission by time-interchange of information elementsInfo
- Publication number
- ES392921A1 ES392921A1 ES392921A ES392921A ES392921A1 ES 392921 A1 ES392921 A1 ES 392921A1 ES 392921 A ES392921 A ES 392921A ES 392921 A ES392921 A ES 392921A ES 392921 A1 ES392921 A1 ES 392921A1
- Authority
- ES
- Spain
- Prior art keywords
- elements
- interchange
- time
- enciphered
- information
- 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
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
- H04L9/34—Bits, or blocks of bits, of the telegraphic message being interchanged in time
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
- H04K1/06—Secret communication by transmitting the information or elements thereof at unnatural speeds or in jumbled order or backwards
Abstract
An information signal train which may, for example, be an audio signal, is divided into equal time intervals and temprarily stored. Each stored element is read out in a random pattern so as to randomly "scramble" the arrangement of the elements as compared with their original arrangement. The "scrambling" of the elements is continuously monitored so as to prevent more than one element from being shifted to the same (new) time position and further to prevent any gaps in the transmitted signal train.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1022770A CH518658A (en) | 1970-07-07 | 1970-07-07 | Process for encrypted message transmission by interchanging information elements over time |
Publications (1)
Publication Number | Publication Date |
---|---|
ES392921A1 true ES392921A1 (en) | 1973-11-01 |
Family
ID=4360828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES392921A Expired ES392921A1 (en) | 1970-07-07 | 1971-07-05 | Method of enciphered information transmission by time-interchange of information elements |
Country Status (12)
Country | Link |
---|---|
US (1) | US3773977A (en) |
JP (1) | JPS583426B1 (en) |
AT (1) | AT327293B (en) |
BE (1) | BE769493A (en) |
CH (1) | CH518658A (en) |
DE (1) | DE2046630C3 (en) |
DK (1) | DK133649B (en) |
ES (1) | ES392921A1 (en) |
FR (1) | FR2101561A5 (en) |
GB (1) | GB1356970A (en) |
NL (1) | NL167818C (en) |
SE (1) | SE363946B (en) |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3921151A (en) * | 1971-06-21 | 1975-11-18 | Patelhold Patentwerwertungs & | Apparatus for enciphering transmitted data by interchanging signal elements of the transmitted data without overlapping or omitting any elements within the transmitted signal train |
US3991271A (en) * | 1972-09-29 | 1976-11-09 | Datotek, Inc. | Voice security method and system |
US4020285A (en) * | 1972-09-29 | 1977-04-26 | Datotek, Inc. | Voice security method and system |
CH574692A5 (en) * | 1973-02-13 | 1976-04-15 | Gretag Ag | |
CH558993A (en) * | 1973-03-19 | 1975-02-14 | Patelhold Patentverwertung | PROCEDURE AND DEVICE FOR ENCRYPTED MESSAGE TRANSMISSION. |
CH559483A5 (en) * | 1973-06-12 | 1975-02-28 | Patelhold Patentverwertung | |
CH580893A5 (en) * | 1973-07-02 | 1976-10-15 | Gretag Ag | |
DE2339685C2 (en) * | 1973-08-06 | 1982-06-03 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Circuit arrangement for the disguised transmission of communication signals |
DE2359673C2 (en) * | 1973-11-30 | 1982-05-27 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Method for disguising the information content of frequency bands |
DE2426635A1 (en) * | 1974-06-01 | 1975-12-11 | Licentia Gmbh | Signal content scrambling method - consecutive time sections or representation signals are separately stored |
CH578807A5 (en) * | 1974-11-05 | 1976-08-13 | Patelhold Patentverwertung | |
DE2455477C3 (en) * | 1974-11-23 | 1982-08-26 | TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Method for concealing speech by interchanging the speech segments over time |
CH581412A5 (en) * | 1975-02-26 | 1976-10-29 | Patelhold Patentverwertung | |
US4004089A (en) * | 1975-02-28 | 1977-01-18 | Ncr Corporation | Programmable cryptic device for enciphering and deciphering data |
US4099027A (en) * | 1976-01-02 | 1978-07-04 | General Electric Company | Speech scrambler |
CH607506A5 (en) * | 1976-06-01 | 1978-12-29 | Europ Handelsges Anst | |
US4087626A (en) * | 1976-08-04 | 1978-05-02 | Rca Corporation | Scrambler and unscrambler for serial data |
US4217469A (en) * | 1977-03-15 | 1980-08-12 | Emilio Martelli | Coding and decoding apparatus for the protection of communication secrecy |
US4100374A (en) * | 1977-04-11 | 1978-07-11 | Bell Telephone Laboratories, Incorporated | Uniform permutation privacy system |
GB1553027A (en) * | 1977-05-12 | 1979-09-19 | Marconi Co Ltd | Message signal scrambling apparatus |
DE2809719C3 (en) * | 1978-03-07 | 1985-03-14 | Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Procedure to increase security against unauthorized decryption of encrypted speech |
US4232194A (en) * | 1979-03-16 | 1980-11-04 | Ocean Technology, Inc. | Voice encryption system |
US4278840A (en) * | 1979-03-23 | 1981-07-14 | Datotek, Inc. | Dynamic frequency and time voice encryption system and method |
FR2454664A1 (en) * | 1979-04-20 | 1980-11-14 | Telediffusion Fse | SYSTEM FOR ENCRYPTION AND DECRYPTION OF AN ANALOGUE SIGNAL BY TIME COMPRESSIONS AND EXPANSIONS |
US4318125A (en) * | 1979-04-25 | 1982-03-02 | Westinghouse Electric Corp. | Solid state digital audio scrambler system for teletransmission of audio intelligence through a television system |
US4266243A (en) * | 1979-04-25 | 1981-05-05 | Westinghouse Electric Corp. | Scrambling system for television sound signals |
US4295223A (en) * | 1979-04-25 | 1981-10-13 | Westinghouse Electric Corp. | Digital signal/noise ratio amplifier apparatus for a communication system |
DE3138523A1 (en) * | 1981-09-28 | 1983-04-07 | Siemens AG, 1000 Berlin und 8000 München | METHOD FOR TAKE-OFF SECURE FREQUENCY BAND-COMPRESSED TRANSMISSION OF VOICE SIGNALS |
US4965825A (en) | 1981-11-03 | 1990-10-23 | The Personalized Mass Media Corporation | Signal processing apparatus and methods |
US7831204B1 (en) | 1981-11-03 | 2010-11-09 | Personalized Media Communications, Llc | Signal processing apparatus and methods |
USRE47642E1 (en) | 1981-11-03 | 2019-10-08 | Personalized Media Communications LLC | Signal processing apparatus and methods |
US4433211A (en) * | 1981-11-04 | 1984-02-21 | Technical Communications Corporation | Privacy communication system employing time/frequency transformation |
DE3207040A1 (en) * | 1982-02-26 | 1983-09-08 | Siemens AG, 1000 Berlin und 8000 München | METHOD AND ARRANGEMENT FOR TRANSMITTING CHARACTERS |
US4591673A (en) * | 1982-05-10 | 1986-05-27 | Lee Lin Shan | Frequency or time domain speech scrambling technique and system which does not require any frame synchronization |
US4661980A (en) * | 1982-06-25 | 1987-04-28 | The United States Of America As Represented By The Secretary Of The Navy | Intercept resistant data transmission system |
IT1156086B (en) * | 1982-10-25 | 1987-01-28 | Cselt Centro Studi Lab Telecom | METHOD AND STORAGE DEVICE OF NUMERICAL SIGNALS ORGANIZED IN A THREE-DIMENSIONAL WAY AND SUBJECT TO ORTHOGONAL TRANSFORMATIONS |
US4551580A (en) * | 1982-11-22 | 1985-11-05 | At&T Bell Laboratories | Time-frequency scrambler |
US4608456A (en) * | 1983-05-27 | 1986-08-26 | M/A-Com Linkabit, Inc. | Digital audio scrambling system with error conditioning |
US4642688A (en) * | 1983-06-24 | 1987-02-10 | Scientific Atlanta, Inc. | Method and apparatus for creating encrypted and decrypted television signals |
US4638357A (en) * | 1984-01-20 | 1987-01-20 | Home Box Office, Inc. | Audio scrambler |
US5253296A (en) * | 1991-11-26 | 1993-10-12 | Communication Electronics | System for resisting interception of information |
US5412719A (en) * | 1992-01-17 | 1995-05-02 | Hitachi, Ltd. | Radio paging system with voice transfer function and radio pager |
AU2000273176A1 (en) * | 2000-09-20 | 2002-04-08 | Yutaka Yasukura | Method of editing/restoring electronic information |
DE10138650A1 (en) * | 2001-08-07 | 2003-02-27 | Fraunhofer Ges Forschung | Method and device for encrypting a discrete signal and method and device for decoding |
US7930331B2 (en) * | 2005-09-26 | 2011-04-19 | Temarylogic Llc | Encipherment of digital sequences by reversible transposition methods |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1953918A (en) * | 1932-03-28 | 1934-04-10 | Associated Electric Lab Inc | Cryptographic system and apparatus |
US2453659A (en) * | 1941-09-05 | 1948-11-09 | Gutzwiller & Co E | Secret telegraph signaling |
US2547515A (en) * | 1949-06-23 | 1951-04-03 | Teletype Corp | Secrecy system |
US3657699A (en) * | 1970-06-30 | 1972-04-18 | Ibm | Multipath encoder-decoder arrangement |
-
1970
- 1970-07-07 CH CH1022770A patent/CH518658A/en not_active IP Right Cessation
- 1970-09-22 DE DE2046630A patent/DE2046630C3/en not_active Expired
-
1971
- 1971-04-20 AT AT335471A patent/AT327293B/en not_active IP Right Cessation
- 1971-05-28 GB GB1814671A patent/GB1356970A/en not_active Expired
- 1971-06-21 US US00154851A patent/US3773977A/en not_active Expired - Lifetime
- 1971-07-05 ES ES392921A patent/ES392921A1/en not_active Expired
- 1971-07-05 DK DK329471AA patent/DK133649B/en not_active IP Right Cessation
- 1971-07-05 FR FR7125390A patent/FR2101561A5/fr not_active Expired
- 1971-07-05 SE SE08682/71A patent/SE363946B/xx unknown
- 1971-07-05 BE BE769493A patent/BE769493A/en not_active IP Right Cessation
- 1971-07-06 NL NL7109284A patent/NL167818C/en not_active IP Right Cessation
- 1971-07-07 JP JP46049645A patent/JPS583426B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
GB1356970A (en) | 1974-06-19 |
JPS583426B1 (en) | 1983-01-21 |
BE769493A (en) | 1971-11-16 |
DE2046630B2 (en) | 1974-08-08 |
CH518658A (en) | 1972-01-31 |
ATA335471A (en) | 1975-04-15 |
NL7109284A (en) | 1972-01-11 |
US3773977A (en) | 1973-11-20 |
DE2046630C3 (en) | 1975-03-20 |
AT327293B (en) | 1976-01-26 |
DK133649C (en) | 1976-11-08 |
NL167818C (en) | 1982-01-18 |
DE2046630A1 (en) | 1972-01-20 |
FR2101561A5 (en) | 1972-03-31 |
NL167818B (en) | 1981-08-17 |
SE363946B (en) | 1974-02-04 |
DK133649B (en) | 1976-06-21 |
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