DE68914322D1 - Dynamische Rückkopplungsvorrichtung für einen Verschleierungsschlüsselgenerator. - Google Patents
Dynamische Rückkopplungsvorrichtung für einen Verschleierungsschlüsselgenerator.Info
- Publication number
- DE68914322D1 DE68914322D1 DE89304574T DE68914322T DE68914322D1 DE 68914322 D1 DE68914322 D1 DE 68914322D1 DE 89304574 T DE89304574 T DE 89304574T DE 68914322 T DE68914322 T DE 68914322T DE 68914322 D1 DE68914322 D1 DE 68914322D1
- Authority
- DE
- Germany
- Prior art keywords
- stage
- polynomial code
- shifted
- logic elements
- 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 - Fee Related
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
- H04L9/06—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
-
- 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)
- Error Detection And Correction (AREA)
- Telephone Function (AREA)
- Electrophonic Musical Instruments (AREA)
- Lock And Its Accessories (AREA)
- Cosmetics (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Shift Register Type Memory (AREA)
- Storage Device Security (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/194,850 US4860353A (en) | 1988-05-17 | 1988-05-17 | Dynamic feedback arrangement scrambling technique keystream generator |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68914322D1 true DE68914322D1 (de) | 1994-05-11 |
DE68914322T2 DE68914322T2 (de) | 1995-11-23 |
Family
ID=22719132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68914322T Expired - Fee Related DE68914322T2 (de) | 1988-05-17 | 1989-05-05 | Dynamische Rückkopplungsvorrichtung für einen Verschleierungsschlüsselgenerator. |
Country Status (11)
Country | Link |
---|---|
US (1) | US4860353A (de) |
EP (1) | EP0342832B1 (de) |
JP (1) | JP3024702B2 (de) |
AT (1) | ATE104100T1 (de) |
AU (1) | AU608439B2 (de) |
CA (1) | CA1331789C (de) |
DE (1) | DE68914322T2 (de) |
DK (1) | DK174597B1 (de) |
ES (1) | ES2097742T3 (de) |
IE (1) | IE62615B1 (de) |
NO (1) | NO300909B1 (de) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5054067A (en) * | 1990-02-21 | 1991-10-01 | General Instrument Corporation | Block-cipher cryptographic device based upon a pseudorandom nonlinear sequence generator |
SE465797B (sv) * | 1990-03-07 | 1991-10-28 | Ericsson Telefon Ab L M | Foerfarande att oeverfoera synkroniseringsinformation vid krypterad oeverfoering i ett mobilradiosystem |
US5008938A (en) * | 1990-03-09 | 1991-04-16 | Motorola, Inc. | Encryption apparatus |
US5091942A (en) * | 1990-07-23 | 1992-02-25 | Ericsson Ge Mobile Communications Holding, Inc. | Authentication system for digital cellular communications |
US5148485A (en) * | 1990-07-20 | 1992-09-15 | Ericsson Ge Mobile Communications Holding, Inc. | Encrypton system for digital cellular communications |
US5081679A (en) * | 1990-07-20 | 1992-01-14 | Ericsson Ge Mobile Communications Holding Inc. | Resynchronization of encryption systems upon handoff |
NZ238651A (en) * | 1990-07-20 | 1994-04-27 | Ericsson Ge Mobile Communicat | Encryption system for digital cellular communications |
US5237612A (en) * | 1991-03-29 | 1993-08-17 | Ericsson Ge Mobile Communications Inc. | Cellular verification and validation system |
US5241598A (en) * | 1991-05-22 | 1993-08-31 | Ericsson Ge Mobile Communications, Inc. | Rolling key resynchronization in cellular verification and validation system |
US5210770A (en) * | 1991-09-27 | 1993-05-11 | Lockheed Missiles & Space Company, Inc. | Multiple-signal spread-spectrum transceiver |
WO1994016509A1 (en) * | 1992-12-30 | 1994-07-21 | Telstra Corporation Limited | A method and apparatus for generating a cipher stream |
US5365588A (en) * | 1993-03-12 | 1994-11-15 | Hughes Aircraft Company | High speed encryption system and method |
CA2128115C (en) * | 1993-07-20 | 1999-08-10 | Keiichi Iwamura | Encryption apparatus, communication system using the same and method therefor |
US5345507A (en) * | 1993-09-08 | 1994-09-06 | International Business Machines Corporation | Secure message authentication for binary additive stream cipher systems |
ES2078178B1 (es) * | 1993-12-31 | 1998-02-01 | Alcatel Standard Electrica | Dispositivo de cifrado de datos. |
US5748735A (en) * | 1994-07-18 | 1998-05-05 | Bell Atlantic Network Services, Inc. | Securing E-mail communications and encrypted file storage using yaksha split private key asymmetric cryptography |
US5557678A (en) * | 1994-07-18 | 1996-09-17 | Bell Atlantic Network Services, Inc. | System and method for centralized session key distribution, privacy enhanced messaging and information distribution using a split private key public cryptosystem |
US5838792A (en) * | 1994-07-18 | 1998-11-17 | Bell Atlantic Network Services, Inc. | Computer system for centralized session key distribution, privacy enhanced messaging and information distribution using a split private key public cryptosystem |
DE19757370C2 (de) * | 1997-12-22 | 2000-03-23 | Siemens Ag | Verfahren zur taktilen Erzeugung pseudo-zufälliger Datenworte |
EP0980605A2 (de) * | 1998-03-05 | 2000-02-23 | Koninklijke Philips Electronics N.V. | Maskengenerierende polynome für pseudozufalls-rauschgeneratoren |
US6961427B1 (en) | 1999-11-23 | 2005-11-01 | General Instrument Corporation | Methods and apparatus for keystream generation |
ATE309654T1 (de) * | 1999-11-23 | 2005-11-15 | Gen Instrument Corp | Verfahren und vorrichtungen zur erzeugung einer schlüsselsequenz |
GB0121793D0 (en) * | 2001-09-08 | 2001-10-31 | Amphion Semiconductor Ltd | An apparatus for generating encryption/decryption keys |
US6862446B2 (en) * | 2003-01-31 | 2005-03-01 | Flarion Technologies, Inc. | Methods and apparatus for the utilization of core based nodes for state transfer |
US7620179B2 (en) | 2004-01-29 | 2009-11-17 | Comcast Cable Holdings, Llc | System and method for security processing media streams |
US7711954B2 (en) * | 2004-08-05 | 2010-05-04 | Digital Keystone, Inc. | Methods and apparatuses for configuring products |
US8151110B2 (en) * | 2004-08-05 | 2012-04-03 | Digital Keystone, Inc. | Methods and apparatuses for configuring products |
US20060031873A1 (en) * | 2004-08-09 | 2006-02-09 | Comcast Cable Holdings, Llc | System and method for reduced hierarchy key management |
US8099369B2 (en) * | 2004-12-08 | 2012-01-17 | Ngna, Llc | Method and system for securing content in media systems |
US7383438B2 (en) * | 2004-12-18 | 2008-06-03 | Comcast Cable Holdings, Llc | System and method for secure conditional access download and reconfiguration |
US7933410B2 (en) * | 2005-02-16 | 2011-04-26 | Comcast Cable Holdings, Llc | System and method for a variable key ladder |
US20060200412A1 (en) * | 2005-02-23 | 2006-09-07 | Comcast Cable Holdings, Llc | System and method for DRM regional and timezone key management |
US7934083B2 (en) * | 2007-09-14 | 2011-04-26 | Kevin Norman Taylor | Configurable access kernel |
US8879733B2 (en) * | 2012-07-10 | 2014-11-04 | Infineon Technologies Ag | Random bit stream generator with guaranteed minimum period |
US8861725B2 (en) * | 2012-07-10 | 2014-10-14 | Infineon Technologies Ag | Random bit stream generator with enhanced backward secrecy |
CA2899385C (en) | 2012-10-29 | 2020-10-13 | Arris Technology, Inc. | Handshaking protocol for secure transfer of data |
RU2653470C1 (ru) * | 2017-06-27 | 2018-05-08 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Казанский национальный исследовательский технический университет им. А.Н. Туполева - КАИ" (КНИТУ-КАИ) | Способ передачи криптограммы в системе связи и устройство для его осуществления |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US434322A (en) * | 1890-08-12 | Seam-compressing machine | ||
US4343967A (en) * | 1950-02-28 | 1982-08-10 | General Dynamics Corporation Electronics Division | Autokey code generator |
US4434322A (en) * | 1965-08-19 | 1984-02-28 | Racal Data Communications Inc. | Coded data transmission system |
US3781473A (en) * | 1971-04-15 | 1973-12-25 | Datotek | Random digital code generator |
US3911330A (en) * | 1974-08-27 | 1975-10-07 | Nasa | Nonlinear nonsingular feedback shift registers |
US4274085A (en) * | 1979-06-28 | 1981-06-16 | Motorola, Inc. | Flexible mode DES system |
US4760598A (en) * | 1981-07-23 | 1988-07-26 | Racal Data Communications Inc. | Coded data transmission system |
CH664056A5 (de) * | 1984-11-02 | 1988-01-29 | Borer Communications Ag | Verfahren und vorrichtung fuer die umwandlung einer digitalen datensequenz in die verschluesselte form. |
US4797921A (en) * | 1984-11-13 | 1989-01-10 | Hitachi, Ltd. | System for enciphering or deciphering data |
US4785410A (en) * | 1985-06-05 | 1988-11-15 | Clarion Co., Ltd. | Maximum length shift register sequences generator |
-
1988
- 1988-05-17 US US07/194,850 patent/US4860353A/en not_active Expired - Lifetime
-
1989
- 1989-05-04 CA CA000598680A patent/CA1331789C/en not_active Expired - Fee Related
- 1989-05-05 DE DE68914322T patent/DE68914322T2/de not_active Expired - Fee Related
- 1989-05-05 ES ES89304574T patent/ES2097742T3/es not_active Expired - Lifetime
- 1989-05-05 AT AT89304574T patent/ATE104100T1/de not_active IP Right Cessation
- 1989-05-05 EP EP89304574A patent/EP0342832B1/de not_active Expired - Lifetime
- 1989-05-09 IE IE150389A patent/IE62615B1/en not_active IP Right Cessation
- 1989-05-12 NO NO891934A patent/NO300909B1/no unknown
- 1989-05-16 DK DK198902371A patent/DK174597B1/da not_active IP Right Cessation
- 1989-05-16 JP JP1120634A patent/JP3024702B2/ja not_active Expired - Fee Related
- 1989-05-17 AU AU34859/89A patent/AU608439B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
EP0342832B1 (de) | 1994-04-06 |
AU3485989A (en) | 1989-11-23 |
DK237189A (da) | 1989-11-18 |
DE68914322T2 (de) | 1995-11-23 |
JPH0222693A (ja) | 1990-01-25 |
US4860353A (en) | 1989-08-22 |
NO300909B1 (no) | 1997-08-11 |
IE62615B1 (en) | 1995-02-22 |
ES2097742T3 (es) | 1997-04-16 |
AU608439B2 (en) | 1991-03-28 |
DK174597B1 (da) | 2003-07-14 |
NO891934D0 (no) | 1989-05-12 |
NO891934L (no) | 1989-11-20 |
CA1331789C (en) | 1994-08-30 |
EP0342832A3 (de) | 1991-05-29 |
ATE104100T1 (de) | 1994-04-15 |
EP0342832A2 (de) | 1989-11-23 |
IE891503L (en) | 1989-11-17 |
DK237189D0 (da) | 1989-05-16 |
JP3024702B2 (ja) | 2000-03-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: GENERAL INSTRUMENT CORP. OF DELAWARE, WILMINGTON, |
|
8328 | Change in the person/name/address of the agent |
Free format text: PATENTANWAELTE RUFF, WILHELM, BEIER, DAUSTER & PARTNER, 70173 STUTTGART |
|
8339 | Ceased/non-payment of the annual fee |