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DE19581586T1 - Vorrichtung zur Erzeugung von Verschlüsselungs/Entschlüsselungs-Nachschlagetabellen unter Verwendung eines Sessionsschlüssels - Google Patents

Vorrichtung zur Erzeugung von Verschlüsselungs/Entschlüsselungs-Nachschlagetabellen unter Verwendung eines Sessionsschlüssels

Info

Publication number
DE19581586T1
DE19581586T1 DE19581586T DE19581586T DE19581586T1 DE 19581586 T1 DE19581586 T1 DE 19581586T1 DE 19581586 T DE19581586 T DE 19581586T DE 19581586 T DE19581586 T DE 19581586T DE 19581586 T1 DE19581586 T1 DE 19581586T1
Authority
DE
Germany
Prior art keywords
session key
lookup tables
generating encryption
decryption
decryption lookup
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.)
Withdrawn
Application number
DE19581586T
Other languages
English (en)
Inventor
William Hawthorne
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.)
Chantilley Corp Ltd
Original Assignee
Chantilley Corp Ltd
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
Priority claimed from GB9405766A external-priority patent/GB9405766D0/en
Application filed by Chantilley Corp Ltd filed Critical Chantilley Corp Ltd
Publication of DE19581586T1 publication Critical patent/DE19581586T1/de
Withdrawn legal-status Critical Current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
    • H04L9/06—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
    • 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
    • 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
    • H04L2209/24—Key scheduling, i.e. generating round keys or sub-keys for block encryption

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Facsimile Transmission Control (AREA)
  • Computer And Data Communications (AREA)
  • Communication Control (AREA)
DE19581586T 1994-03-23 1995-03-23 Vorrichtung zur Erzeugung von Verschlüsselungs/Entschlüsselungs-Nachschlagetabellen unter Verwendung eines Sessionsschlüssels Withdrawn DE19581586T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9405766A GB9405766D0 (en) 1993-09-14 1994-03-23 Communications encryption and decryption arrangements
PCT/GB1995/000660 WO1995026087A1 (en) 1994-03-23 1995-03-23 Apparatus for generating encryption/decryption look-up tables using a session key

Publications (1)

Publication Number Publication Date
DE19581586T1 true DE19581586T1 (de) 1997-05-28

Family

ID=10752381

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19581586T Withdrawn DE19581586T1 (de) 1994-03-23 1995-03-23 Vorrichtung zur Erzeugung von Verschlüsselungs/Entschlüsselungs-Nachschlagetabellen unter Verwendung eines Sessionsschlüssels

Country Status (6)

Country Link
US (1) US5832087A (de)
JP (1) JP3814687B2 (de)
AU (1) AU2076695A (de)
DE (1) DE19581586T1 (de)
GB (1) GB2302246B (de)
WO (1) WO1995026087A1 (de)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020002675A1 (en) 1997-08-06 2002-01-03 Ronald Roscoe Bush Secure encryption of data packets for transmission over unsecured networks
FI113119B (fi) * 1997-09-15 2004-02-27 Nokia Corp Menetelmä tietoliikenneverkkojen lähetysten turvaamiseksi
US6636833B1 (en) 1998-03-25 2003-10-21 Obis Patents Ltd. Credit card system and method
GB2339121B (en) * 1998-06-30 2003-03-05 Chantilley Corp Ltd Encryption and decryption key arrangements
US6324526B1 (en) 1999-01-15 2001-11-27 D'agostino John System and method for performing secure credit card purchases
AU3833400A (en) 1999-04-13 2000-11-14 Orbis Patents Limited Person-to-person, person-to-business, business-to-person, and business-to-business financial transaction system
US7203834B1 (en) * 1999-12-02 2007-04-10 International Business Machines Corporation Method of updating encryption keys in a data communication system
DE10110049A1 (de) * 2001-03-02 2002-09-05 Bosch Gmbh Robert Verfahren und Vorrichtung zur Datenverschlüsselung bei der Programmierung von Steuergeräten
JP2002268949A (ja) * 2001-03-12 2002-09-20 Pioneer Electronic Corp 複製管理方法、複製管理装置、記録媒体およびプログラム
US10592901B2 (en) 2001-06-04 2020-03-17 Orbis Patents, Ltd. Business-to-business commerce using financial transaction numbers
US7467287B1 (en) 2001-12-31 2008-12-16 Apple Inc. Method and apparatus for vector table look-up
US7055018B1 (en) 2001-12-31 2006-05-30 Apple Computer, Inc. Apparatus for parallel vector table look-up
US6931511B1 (en) * 2001-12-31 2005-08-16 Apple Computer, Inc. Parallel vector table look-up with replicated index element vector
US7681013B1 (en) 2001-12-31 2010-03-16 Apple Inc. Method for variable length decoding using multiple configurable look-up tables
US7034849B1 (en) * 2001-12-31 2006-04-25 Apple Computer, Inc. Method and apparatus for image blending
US20060034456A1 (en) * 2002-02-01 2006-02-16 Secure Choice Llc Method and system for performing perfectly secure key exchange and authenticated messaging
US20030149876A1 (en) * 2002-02-01 2003-08-07 Secure Choice Llc Method and system for performing perfectly secure key exchange and authenticated messaging
GB2387702B (en) * 2002-04-17 2005-06-01 Cellectivity Ltd Method of access control using PIN numbers
CN100571131C (zh) * 2002-05-09 2009-12-16 奥尼西克集团有限公司 密码装置和方法以及密码系统
US20060171534A1 (en) * 2005-01-31 2006-08-03 Baughman William P Variable key encryption using multi-dimensional arrays
US20080024332A1 (en) * 2006-07-27 2008-01-31 George Simonson Method and Apparatus for Protecting Data
EP2060045A4 (de) * 2006-09-06 2012-04-25 Sslnext Inc Verfahren und system zur herstellung echtzeit-authentifizierter und sicherer kommunikationskanäle in einem öffentlichen netz
US8144875B2 (en) * 2006-09-06 2012-03-27 Paul McGough Method and system for establishing real-time authenticated and secured communications channels in a public network
JP4714124B2 (ja) * 2006-11-14 2011-06-29 東芝情報システム株式会社 送信装置、受信装置、情報通信システム
KR100920287B1 (ko) * 2007-06-01 2009-10-08 허영순 문서 보안 방법
EP2553863A1 (de) * 2010-03-29 2013-02-06 Intel Corporation Verfahren und vorrichtung für administratorbetriebene profilaktualisierung
KR101106604B1 (ko) * 2011-06-14 2012-01-20 펜타시큐리티시스템 주식회사 특성 유지 암호화를 이용한 데이터 보안 방법 및 장치

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4776011A (en) * 1983-10-24 1988-10-04 Sony Corporation Recursive key schedule cryptographic system
US5063596A (en) * 1989-02-24 1991-11-05 Miu Automation Corporation Encryption printed circuit board
US5003596A (en) * 1989-08-17 1991-03-26 Cryptech, Inc. Method of cryptographically transforming electronic digital data from one form to another
US5204901A (en) * 1991-08-01 1993-04-20 General Electric Company Public key cryptographic mechanism

Also Published As

Publication number Publication date
AU2076695A (en) 1995-10-09
US5832087A (en) 1998-11-03
GB9618811D0 (en) 1996-10-23
JP3814687B2 (ja) 2006-08-30
JPH09510591A (ja) 1997-10-21
WO1995026087A1 (en) 1995-09-28
GB2302246B (en) 1998-05-13
GB2302246A (en) 1997-01-08

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Legal Events

Date Code Title Description
8141 Disposal/no request for examination
8170 Reinstatement of the former position
8110 Request for examination paragraph 44
8139 Disposal/non-payment of the annual fee