HK1108992A1 - Communication system and communication method - Google Patents

Communication system and communication method

Info

Publication number
HK1108992A1
HK1108992A1 HK08101301.4A HK08101301A HK1108992A1 HK 1108992 A1 HK1108992 A1 HK 1108992A1 HK 08101301 A HK08101301 A HK 08101301A HK 1108992 A1 HK1108992 A1 HK 1108992A1
Authority
HK
Hong Kong
Prior art keywords
communication
communication system
communication method
Prior art date
Application number
HK08101301.4A
Other languages
English (en)
Chinese (zh)
Inventor
Takatoshi Nakamura
Original Assignee
Nti 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 Nti Inc filed Critical Nti Inc
Publication of HK1108992A1 publication Critical patent/HK1108992A1/xx

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
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
    • G09C1/04—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system with sign carriers or indicators moved relative to one another to positions determined by a permutation code, or key, so as to indicate the appropriate corresponding clear or ciphered text
    • 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
    • H04L2209/08—Randomization, e.g. dummy operations or using noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Storage Device Security (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Facsimile Transmission Control (AREA)
  • Telephonic Communication Services (AREA)
  • Computer And Data Communications (AREA)
  • Small-Scale Networks (AREA)
HK08101301.4A 2005-01-07 2008-02-04 Communication system and communication method HK1108992A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005003259A JP2006191508A (ja) 2005-01-07 2005-01-07 通信システム、通信方法
PCT/JP2006/300158 WO2006073200A1 (ja) 2005-01-07 2006-01-04 通信システム、通信方法

Publications (1)

Publication Number Publication Date
HK1108992A1 true HK1108992A1 (en) 2008-05-23

Family

ID=36647677

Family Applications (1)

Application Number Title Priority Date Filing Date
HK08101301.4A HK1108992A1 (en) 2005-01-07 2008-02-04 Communication system and communication method

Country Status (12)

Country Link
EP (1) EP1835655B1 (xx)
JP (1) JP2006191508A (xx)
KR (1) KR20070096003A (xx)
CN (1) CN101103588B (xx)
AU (2) AU2006204261A1 (xx)
BR (1) BRPI0606153A2 (xx)
CA (1) CA2592675A1 (xx)
HK (1) HK1108992A1 (xx)
IL (1) IL184387A0 (xx)
RU (1) RU2007129927A (xx)
TW (1) TWI387296B (xx)
WO (1) WO2006073200A1 (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008259077A (ja) * 2007-04-06 2008-10-23 N-Crypt Lab Inc 送受信システム、送信装置、受信装置、それらで実行される方法、並びにプログラム
JP2009177684A (ja) * 2008-01-28 2009-08-06 N-Crypt Lab Inc 送受信システム、送信装置、受信装置、それらで実行される方法、並びにプログラム
JP2013236397A (ja) * 2013-07-23 2013-11-21 Nti Corp 送受信システム、送信装置、受信装置、それらで実行される方法、並びにプログラム
JP2020120297A (ja) * 2019-01-24 2020-08-06 株式会社 エヌティーアイ 送受信システム、送信装置、受信装置、方法、並びにコンピュータプログラム

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5008938A (en) * 1990-03-09 1991-04-16 Motorola, Inc. Encryption apparatus
JPH0575596A (ja) * 1991-09-10 1993-03-26 Matsushita Electric Ind Co Ltd 信号撹拌装置および暗号装置
JPH06216897A (ja) * 1993-01-20 1994-08-05 Nippon Signal Co Ltd:The データ送受信装置
JP2546504B2 (ja) * 1993-07-14 1996-10-23 日本電気株式会社 暗号における暗号化前処理装置および復号後処理装置
JPH0918469A (ja) * 1995-06-30 1997-01-17 Canon Inc 暗号通信装置、システム及び暗号装置
JPH09116532A (ja) * 1995-10-20 1997-05-02 Nippon Telegr & Teleph Corp <Ntt> 暗号鍵内容を隠蔽した情報流通方法
JPH10242956A (ja) * 1997-02-28 1998-09-11 Nec Commun Syst Ltd 秘話装置
US6259789B1 (en) * 1997-12-12 2001-07-10 Safecourier Software, Inc. Computer implemented secret object key block cipher encryption and digital signature device and method
JP3776619B2 (ja) * 1999-03-05 2006-05-17 株式会社東芝 暗号通信端末、暗号通信センター装置、暗号通信システム及び記憶媒体
JP2001308843A (ja) * 2000-04-19 2001-11-02 Nec Commun Syst Ltd 暗号復号化装置
US7382878B2 (en) * 2001-06-22 2008-06-03 Uponus Technologies, Llc System and method for data encryption
GB0129928D0 (en) * 2001-12-14 2002-02-06 Ibm Method and apparatus for encryption of data
FR2838894A1 (fr) * 2002-04-19 2003-10-24 St Microelectronics Sa Chiffrement du contenu d'une memoire externe a un processeur
US7346160B2 (en) * 2003-04-23 2008-03-18 Michaelsen David L Randomization-based encryption apparatus and method

Also Published As

Publication number Publication date
BRPI0606153A2 (pt) 2009-11-10
CN101103588B (zh) 2014-08-27
TWI387296B (zh) 2013-02-21
JP2006191508A (ja) 2006-07-20
CA2592675A1 (en) 2006-07-13
EP1835655B1 (en) 2014-09-03
EP1835655A1 (en) 2007-09-19
KR20070096003A (ko) 2007-10-01
AU2010202383A1 (en) 2010-07-01
IL184387A0 (en) 2007-10-31
CN101103588A (zh) 2008-01-09
EP1835655A4 (en) 2011-11-02
RU2007129927A (ru) 2009-02-20
AU2006204261A1 (en) 2006-07-13
TW200637321A (en) 2006-10-16
WO2006073200A1 (ja) 2006-07-13

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20210104