AU2000248149A1 - System and method for secure cryptographic communications - Google Patents

System and method for secure cryptographic communications

Info

Publication number
AU2000248149A1
AU2000248149A1 AU2000248149A AU4814900A AU2000248149A1 AU 2000248149 A1 AU2000248149 A1 AU 2000248149A1 AU 2000248149 A AU2000248149 A AU 2000248149A AU 4814900 A AU4814900 A AU 4814900A AU 2000248149 A1 AU2000248149 A1 AU 2000248149A1
Authority
AU
Australia
Prior art keywords
key
storage unit
keys
key storage
occurrence
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.)
Abandoned
Application number
AU2000248149A
Inventor
Derek C. Au
Hugo Fruehauf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zyfer Inc
Original Assignee
Zyfer Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zyfer Inc filed Critical Zyfer Inc
Publication of AU2000248149A1 publication Critical patent/AU2000248149A1/en
Abandoned legal-status Critical Current

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
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
    • 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
    • H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
    • H04L9/16—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms the keys or algorithms being changed during operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)
  • Circuits Of Receivers In General (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

An apparatus and method for secure cryptographic communications between a sender and a receiver or multiple receivers that includes first and second timing elements, and first and second key storage units containing multiple keys in a predetermined order for selection depending on respective key times, where the key times occur periodically according to the first and second timing elements, respectively. A data encryptor obtains a new key from the first key storage unit at each occurrence of the key time of the first key storage unit, and uses the key to encrypt an inputted data. And, at least one data decryptor obtains a new key from the second key storage unit at each occurrence of the key time of the second key storage unit. Time synchronization of the participants' equipment provides the method of selecting compatible keys for the encryption and decryption process. This approach not only selects the compatible keys at the sending and receiving ends but also serves to change keys on a regular basis to enhance the overall security of the system.
AU2000248149A 2000-02-22 2000-05-02 System and method for secure cryptographic communications Abandoned AU2000248149A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/510,540 US6590981B2 (en) 2000-02-22 2000-02-22 System and method for secure cryptographic communications
US09510540 2000-02-22
PCT/US2000/011924 WO2001063832A1 (en) 2000-02-22 2000-05-02 System and method for secure cryptographic communications

Publications (1)

Publication Number Publication Date
AU2000248149A1 true AU2000248149A1 (en) 2001-09-03

Family

ID=24031166

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2000248149A Abandoned AU2000248149A1 (en) 2000-02-22 2000-05-02 System and method for secure cryptographic communications

Country Status (6)

Country Link
US (1) US6590981B2 (en)
EP (1) EP1258100B1 (en)
AT (1) ATE319242T1 (en)
AU (1) AU2000248149A1 (en)
DE (1) DE60026296T2 (en)
WO (1) WO2001063832A1 (en)

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US7724923B2 (en) * 2001-07-09 2010-05-25 Laurence Hamid Removable swipe-imaging device and method for identifying same
ES2182709A1 (en) * 2001-07-09 2003-03-01 Crespo Jose Agustin Franc Vega Portable system for storing and emitting pre-established codes for authentication purposes and the authentication method used
US7174017B2 (en) * 2002-03-04 2007-02-06 Lenovo Singapore Pte, Ltd Decryption system for encrypted audio
JP2004186814A (en) * 2002-11-29 2004-07-02 Fujitsu Ltd Common key encryption communication system
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US7392399B2 (en) * 2003-05-05 2008-06-24 Sun Microsystems, Inc. Methods and systems for efficiently integrating a cryptographic co-processor
US7471795B2 (en) * 2003-09-12 2008-12-30 Victor Company Of Japan, Ltd. Information transmission system
US20050213768A1 (en) * 2004-03-24 2005-09-29 Durham David M Shared cryptographic key in networks with an embedded agent
US7711119B2 (en) * 2004-05-27 2010-05-04 Qualcomm Incorporated Method and apparatus for transition of encryption key during an ongoing media communication session
US7643633B2 (en) * 2005-05-06 2010-01-05 Research In Motion Limited Adding randomness internally to a wireless mobile communication device
US9787471B1 (en) * 2005-06-02 2017-10-10 Robert T. Jenkins and Virginia T. Jenkins Data enciphering or deciphering using a hierarchical assignment system
FR2898002B1 (en) * 2006-02-28 2008-06-27 Thales Sa METHOD FOR MANAGING AND CONTROLLING ACCESS KEYS TO SERVICES IN A COMMUNICATION SYSTEM
US20070234033A1 (en) * 2006-03-28 2007-10-04 Bade Steven A Method for establishing secure distributed cryptographic objects
US20090179775A1 (en) * 2008-01-10 2009-07-16 Gm Global Technology Operations, Inc. Secure information system
US8804606B2 (en) * 2008-08-11 2014-08-12 Gilat Satellite Networks Ltd. Transparent mesh overlay in hub-spoke satellite networks
CN101399627B (en) * 2008-09-27 2012-08-29 北京数字太和科技有限责任公司 Method and system for synchronization recovery
US8619986B2 (en) * 2011-07-21 2013-12-31 Patton Protection Systems LLC Systems and methods for secure communication using a communication encryption bios based upon a message specific identifier
WO2013042143A1 (en) * 2011-09-19 2013-03-28 Telespazio S.P.A. Management of synchronized symmetric keys for securing data exchanged by communication nodes
US8995658B2 (en) * 2013-02-13 2015-03-31 Honeywell International Inc. Physics-based key generation
US20140229386A1 (en) * 2013-02-13 2014-08-14 Mistral Mobile Secure mobile payments
US9652511B2 (en) * 2013-03-13 2017-05-16 International Business Machines Corporation Secure matching supporting fuzzy data
CN104270752B (en) * 2014-09-30 2017-10-27 新华三技术有限公司 Cryptographic key negotiation method and device in wireless network
JP6730602B2 (en) * 2016-09-13 2020-07-29 株式会社Ｊｖｃケンウッド Decryption device, encryption device, decryption method, encryption method, program
TWI688252B (en) * 2016-10-03 2020-03-11 日商日本電氣股份有限公司 Communication device, communication method and recording medium
TWI694707B (en) * 2016-10-03 2020-05-21 日商日本電氣股份有限公司 Communication device, communication method, communication system and recording medium
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Also Published As

Publication number Publication date
ATE319242T1 (en) 2006-03-15
EP1258100A4 (en) 2004-03-31
DE60026296T2 (en) 2007-05-10
US6590981B2 (en) 2003-07-08
WO2001063832A1 (en) 2001-08-30
DE60026296D1 (en) 2006-04-27
EP1258100B1 (en) 2006-03-01
US20020006202A1 (en) 2002-01-17
EP1258100A1 (en) 2002-11-20

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