CA2283304A1 - Method of and apparatus for encrypting signals for transmission - Google Patents
Method of and apparatus for encrypting signals for transmission Download PDFInfo
- Publication number
- CA2283304A1 CA2283304A1 CA002283304A CA2283304A CA2283304A1 CA 2283304 A1 CA2283304 A1 CA 2283304A1 CA 002283304 A CA002283304 A CA 002283304A CA 2283304 A CA2283304 A CA 2283304A CA 2283304 A1 CA2283304 A1 CA 2283304A1
- Authority
- CA
- Canada
- Prior art keywords
- message signals
- inverse
- transformation
- encoding
- accordance
- 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.)
- Granted
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
-
- 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
- H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
Abstract
In a communications system, a method of transforming a set of message signals representing a message comprising the steps of first encoding one of the set of message signals in accordance with a first keyed transformation, a second encoding of the one of the set of message signals in accordance with at least one additional keyed transformation, a third encoding of the one of the set of message signals in accordance with a self-inverting transformation in which at least one of the set of message signals is altered, a fourth encoding of the one of the set of message signals in accordance with at least one additional inverse keyed transformation wherein each of the at least one additional inverse keyed transformation is a corresponding inverse of at least one additional keyed transformation, and fifth encoding the one of the set of message signals in accordance with first inverse keyed transformation wherein the first inverse keyed transformation is the inverse of the first keyed transformation.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002603161A CA2603161C (en) | 1997-03-11 | 1998-03-04 | Method of and apparatus for encrypting signals for transmission |
CA002603164A CA2603164C (en) | 1997-03-11 | 1998-03-04 | Method of and apparatus for encrypting signals for transmission |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/815,347 US6075859A (en) | 1997-03-11 | 1997-03-11 | Method and apparatus for encrypting data in a wireless communication system |
US08/815,347 | 1997-03-11 | ||
PCT/US1998/004799 WO1998040984A1 (en) | 1997-03-11 | 1998-03-04 | Method of and apparatus for encrypting signals for transmission |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002603161A Division CA2603161C (en) | 1997-03-11 | 1998-03-04 | Method of and apparatus for encrypting signals for transmission |
CA002603164A Division CA2603164C (en) | 1997-03-11 | 1998-03-04 | Method of and apparatus for encrypting signals for transmission |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2283304A1 true CA2283304A1 (en) | 1998-09-17 |
CA2283304C CA2283304C (en) | 2007-12-18 |
Family
ID=25217529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002283304A Expired - Lifetime CA2283304C (en) | 1997-03-11 | 1998-03-04 | Method of and apparatus for encrypting signals for transmission |
Country Status (19)
Country | Link |
---|---|
US (6) | US6075859A (en) |
EP (4) | EP2262163A3 (en) |
JP (1) | JP4260896B2 (en) |
KR (3) | KR100929515B1 (en) |
CN (1) | CN1154293C (en) |
AR (1) | AR011969A1 (en) |
AT (1) | ATE466428T1 (en) |
AU (1) | AU6938898A (en) |
BR (1) | BR9808232B8 (en) |
CA (1) | CA2283304C (en) |
DE (1) | DE69841641D1 (en) |
ES (1) | ES2343491T3 (en) |
FI (1) | FI19991876A (en) |
ID (1) | ID24932A (en) |
IL (1) | IL131696A0 (en) |
MY (1) | MY138521A (en) |
RU (1) | RU2267227C2 (en) |
WO (1) | WO1998040984A1 (en) |
ZA (1) | ZA982022B (en) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6075859A (en) * | 1997-03-11 | 2000-06-13 | Qualcomm Incorporated | Method and apparatus for encrypting data in a wireless communication system |
US6266411B1 (en) * | 1997-04-14 | 2001-07-24 | Lucent Technologies Inc. | Method and apparatus for multiple-iteration CMEA encryption and decryption for improved security for wireless telephone messages |
US6418224B1 (en) * | 1997-05-06 | 2002-07-09 | Lucent Technologies Inc. | Methods and apparatus for self-inverting multiple-iteration CMEA crypto-processing for improved security for wireless telephone messages |
JP4110690B2 (en) * | 1999-10-18 | 2008-07-02 | ヤマハ株式会社 | Data generation method, recording apparatus, recording medium, and reproducing apparatus |
KR100636111B1 (en) * | 1999-10-30 | 2006-10-18 | 삼성전자주식회사 | Method protecting data stored in lost mobile terminal and recording medium therefor |
JP2001359165A (en) * | 2000-06-15 | 2001-12-26 | Mitsubishi Electric Corp | Mobile communication system |
US6596541B2 (en) | 2000-10-31 | 2003-07-22 | Regeneron Pharmaceuticals, Inc. | Methods of modifying eukaryotic cells |
US20020116450A1 (en) * | 2000-12-01 | 2002-08-22 | Multiscience System Pte Ltd. | Network for information transfer for mobile stations |
US6907123B1 (en) | 2000-12-21 | 2005-06-14 | Cisco Technology, Inc. | Secure voice communication system |
US7023997B1 (en) | 2000-12-21 | 2006-04-04 | Cisco Technology, Inc. | Secure messaging communication system |
US7224801B2 (en) * | 2000-12-27 | 2007-05-29 | Logitech Europe S.A. | Wireless secure device |
JP2002198956A (en) * | 2000-12-27 | 2002-07-12 | Toshiba Corp | Communication equipment and its authentication method |
AU2003223022A1 (en) * | 2002-04-30 | 2003-11-17 | Carl Alko Meijer | Method for protecting secret key cryptographic schemes |
US7796752B2 (en) * | 2002-11-04 | 2010-09-14 | Marvell International Ltd. | Cipher implementation |
US7234097B1 (en) * | 2003-01-27 | 2007-06-19 | Marvell International Ltd. | Methods of supporting host CRC in data storage systems without RLL coding |
US7475331B1 (en) | 2003-10-07 | 2009-01-06 | Marvell International Ltd. | Data dependent scrambler with improved global constraint |
JP4696449B2 (en) * | 2004-01-09 | 2011-06-08 | ソニー株式会社 | Encryption apparatus and method |
US8639947B2 (en) * | 2004-06-01 | 2014-01-28 | Ben Gurion University Of The Negev Research And Development Authority | Structure preserving database encryption method and system |
CN101103586B (en) | 2005-01-11 | 2011-01-12 | 三星电子株式会社 | Apparatus and method for ciphering/deciphering a signal in a communication system |
JP4763447B2 (en) * | 2005-12-19 | 2011-08-31 | 株式会社ソニー・コンピュータエンタテインメント | Authentication system and authentication target device |
DE102006046211A1 (en) * | 2006-09-29 | 2008-04-03 | Siemens Ag | Method and device for creating a coding key, and use of the method and processing means for using the coding key |
GB2446199A (en) | 2006-12-01 | 2008-08-06 | David Irvine | Secure, decentralised and anonymous peer-to-peer network |
US8571188B2 (en) * | 2006-12-15 | 2013-10-29 | Qualcomm Incorporated | Method and device for secure phone banking |
US8290162B2 (en) * | 2006-12-15 | 2012-10-16 | Qualcomm Incorporated | Combinational combiner cryptographic method and apparatus |
EP2195761B1 (en) * | 2007-10-01 | 2013-04-03 | Research In Motion Limited | Substitution table masking for cryptographic processes |
WO2016133958A1 (en) * | 2015-02-17 | 2016-08-25 | Visa International Service Association | Cloud encryption key broker apparatuses, methods and systems |
ES2941787T3 (en) * | 2018-12-20 | 2023-05-25 | Merck Patent Gmbh | Methods and systems for preparing and performing object authentication |
RU2718953C1 (en) * | 2019-03-11 | 2020-04-15 | ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ КАЗЕННОЕ ВОЕННОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ "Военная академия Ракетных войск стратегического назначения имени Петра Великого" МИНИСТЕРСТВА ОБОРОНЫ РОССИЙСКОЙ ФЕДЕРАЦИИ | Information and energy security transmitter |
KR20240028660A (en) | 2022-08-25 | 2024-03-05 | (주)아모레퍼시픽 | Stick-type product with heating function |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4275265A (en) * | 1978-10-02 | 1981-06-23 | Wisconsin Alumni Research Foundation | Complete substitution permutation enciphering and deciphering circuit |
US4901307A (en) | 1986-10-17 | 1990-02-13 | Qualcomm, Inc. | Spread spectrum multiple access communication system using satellite or terrestrial repeaters |
US5214704A (en) | 1989-10-04 | 1993-05-25 | Teledyne Industries, Inc. | Nonlinear dynamic substitution devices and methods for block substitutions |
US5003597A (en) * | 1989-12-21 | 1991-03-26 | Xerox Corporation | Method and apparatus for data encryption |
JPH07111336B2 (en) * | 1990-02-07 | 1995-11-29 | 株式会社東芝 | Pattern dimension measuring method and device |
WO1991018459A2 (en) * | 1990-05-18 | 1991-11-28 | Ascom Tech Ag | Device for converting a digital block and the use thereof |
US5103459B1 (en) | 1990-06-25 | 1999-07-06 | Qualcomm Inc | System and method for generating signal waveforms in a cdma cellular telephone system |
US5159634A (en) | 1991-09-13 | 1992-10-27 | At&T Bell Laboratories | Cryptosystem for cellular telephony |
US5220606A (en) * | 1992-02-10 | 1993-06-15 | Harold Greenberg | Cryptographic system and method |
GB9211648D0 (en) * | 1992-06-02 | 1992-07-15 | Racal Datacom Ltd | Data communication system |
US5517567A (en) * | 1994-08-23 | 1996-05-14 | Daq Electronics Inc. | Key distribution system |
US5513245A (en) * | 1994-08-29 | 1996-04-30 | Sony Corporation | Automatic generation of private authentication key for wireless communication systems |
JPH08179690A (en) * | 1994-12-22 | 1996-07-12 | Nec Corp | Product encoding device |
US5594797A (en) * | 1995-02-22 | 1997-01-14 | Nokia Mobile Phones | Variable security level encryption |
US5991407A (en) * | 1995-10-17 | 1999-11-23 | Nokia Telecommunications Oy | Subscriber authentication in a mobile communications system |
US6393270B1 (en) * | 1996-10-11 | 2002-05-21 | Bellsouth Intellectual Property Corp. | Network authentication method for over the air activation |
US6075859A (en) * | 1997-03-11 | 2000-06-13 | Qualcomm Incorporated | Method and apparatus for encrypting data in a wireless communication system |
US6266411B1 (en) * | 1997-04-14 | 2001-07-24 | Lucent Technologies Inc. | Method and apparatus for multiple-iteration CMEA encryption and decryption for improved security for wireless telephone messages |
CN1236516A (en) * | 1997-07-29 | 1999-11-24 | 朗迅科技公司 | Methods and apparatus for enhanced CMEA employing enhanced transformations |
-
1997
- 1997-03-11 US US08/815,347 patent/US6075859A/en not_active Expired - Lifetime
-
1998
- 1998-03-04 CA CA002283304A patent/CA2283304C/en not_active Expired - Lifetime
- 1998-03-04 JP JP53977798A patent/JP4260896B2/en not_active Expired - Lifetime
- 1998-03-04 BR BRPI9808232-9A patent/BR9808232B8/en not_active IP Right Cessation
- 1998-03-04 EP EP10180359A patent/EP2262163A3/en not_active Withdrawn
- 1998-03-04 ID IDW991097A patent/ID24932A/en unknown
- 1998-03-04 DE DE69841641T patent/DE69841641D1/en not_active Expired - Lifetime
- 1998-03-04 CN CNB988032368A patent/CN1154293C/en not_active Expired - Lifetime
- 1998-03-04 KR KR1020097001490A patent/KR100929515B1/en not_active IP Right Cessation
- 1998-03-04 AT AT98915133T patent/ATE466428T1/en not_active IP Right Cessation
- 1998-03-04 EP EP09168723A patent/EP2120387A3/en not_active Withdrawn
- 1998-03-04 KR KR1019997008238A patent/KR100618373B1/en not_active IP Right Cessation
- 1998-03-04 IL IL13169698A patent/IL131696A0/en unknown
- 1998-03-04 AU AU69388/98A patent/AU6938898A/en not_active Abandoned
- 1998-03-04 RU RU99121330/09A patent/RU2267227C2/en active
- 1998-03-04 EP EP20090169042 patent/EP2124378A3/en not_active Withdrawn
- 1998-03-04 ES ES98915133T patent/ES2343491T3/en not_active Expired - Lifetime
- 1998-03-04 WO PCT/US1998/004799 patent/WO1998040984A1/en active IP Right Grant
- 1998-03-04 EP EP98915133A patent/EP0966809B1/en not_active Expired - Lifetime
- 1998-03-04 KR KR1020067008447A patent/KR100899964B1/en not_active IP Right Cessation
- 1998-03-10 ZA ZA982022A patent/ZA982022B/en unknown
- 1998-03-10 MY MYPI98001038A patent/MY138521A/en unknown
- 1998-03-11 AR ARP980101085A patent/AR011969A1/en unknown
-
1999
- 1999-08-05 US US09/369,382 patent/US6385316B1/en not_active Expired - Lifetime
- 1999-09-02 FI FI991876A patent/FI19991876A/en not_active Application Discontinuation
-
2002
- 2002-02-21 US US10/081,750 patent/US20020114450A1/en not_active Abandoned
-
2003
- 2003-05-09 US US10/434,749 patent/US6768797B2/en not_active Expired - Fee Related
-
2004
- 2004-03-30 US US10/814,065 patent/US7995751B2/en not_active Expired - Fee Related
-
2011
- 2011-08-09 US US13/206,300 patent/US20120207304A1/en not_active Abandoned
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20180305 |