DE3072073D1 - Apparatus and method for hashing key data - Google Patents

Apparatus and method for hashing key data

Info

Publication number
DE3072073D1
DE3072073D1 DE8181900124T DE3072073T DE3072073D1 DE 3072073 D1 DE3072073 D1 DE 3072073D1 DE 8181900124 T DE8181900124 T DE 8181900124T DE 3072073 T DE3072073 T DE 3072073T DE 3072073 D1 DE3072073 D1 DE 3072073D1
Authority
DE
Germany
Prior art keywords
key data
hashing key
hashing
data
key
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
Application number
DE8181900124T
Other languages
English (en)
Inventor
Duwayne Dale Oosterbaan
Gerard John Williams
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.)
NCR International Inc
Original Assignee
NCR Corp
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 NCR Corp filed Critical NCR Corp
Application granted granted Critical
Publication of DE3072073D1 publication Critical patent/DE3072073D1/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90—Details of database functions independent of the retrieved data types
    • G06F16/901—Indexing; Data structures therefor; Storage structures
    • G06F16/9014—Indexing; Data structures therefor; Storage structures hash tables

Landscapes

  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Data Mining & Analysis (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Error Detection And Correction (AREA)
  • Storage Device Security (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
DE8181900124T 1979-12-07 1980-11-26 Apparatus and method for hashing key data Expired DE3072073D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/101,319 US4418275A (en) 1979-12-07 1979-12-07 Data hashing method and apparatus
PCT/US1980/001597 WO1981001758A1 (en) 1979-12-07 1980-11-26 Apparatus and method for hashing key data

Publications (1)

Publication Number Publication Date
DE3072073D1 true DE3072073D1 (en) 1988-03-10

Family

ID=22284028

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181900124T Expired DE3072073D1 (en) 1979-12-07 1980-11-26 Apparatus and method for hashing key data

Country Status (6)

Country Link
US (1) US4418275A (de)
EP (1) EP0041549B1 (de)
JP (1) JPS6360415B2 (de)
CA (1) CA1146281A (de)
DE (1) DE3072073D1 (de)
WO (1) WO1981001758A1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4578531A (en) * 1982-06-09 1986-03-25 At&T Bell Laboratories Encryption system key distribution method and apparatus
US4780816A (en) * 1986-05-16 1988-10-25 The United States Of America As Represented By The Secretary Of The Army Key-to-address transformations
US4922417A (en) * 1986-10-24 1990-05-01 American Telephone And Telegraph Company Method and apparatus for data hashing using selection from a table of random numbers in combination with folding and bit manipulation of the selected random numbers
DE3636426A1 (de) * 1986-10-25 1988-05-05 Standard Elektrik Lorenz Ag Verfahren zur eingabe von stellbefehlen in ein rechnergesteuertes stellwerk
US4771463A (en) * 1986-12-05 1988-09-13 Siemens Transmission Systems, Inc. Digital scrambling without error multiplication
US4823345A (en) * 1987-06-15 1989-04-18 International Business Machines Corp. Method and apparatus for communication network alert record identification
US5113444A (en) * 1990-09-05 1992-05-12 Arnold Vobach Random choice cipher system and method
EP0483424A1 (de) * 1990-10-30 1992-05-06 International Business Machines Corporation Verschlüsselungsverfahren in Datenverarbeitungsgeräten
US5307412A (en) * 1992-09-30 1994-04-26 Vobach Arnold R Random coding cipher system and method
US5335280A (en) * 1993-01-28 1994-08-02 Vobach Arnold R Random sum cipher system and method
US5412721A (en) * 1993-03-26 1995-05-02 Motorola, Inc. Method for loading and utilizing a key in a secure transmission device
US5363448A (en) * 1993-06-30 1994-11-08 United Technologies Automotive, Inc. Pseudorandom number generation and cryptographic authentication
US5377270A (en) * 1993-06-30 1994-12-27 United Technologies Automotive, Inc. Cryptographic authentication of transmitted messages using pseudorandom numbers
US5680131A (en) * 1993-10-29 1997-10-21 National Semiconductor Corporation Security system having randomized synchronization code after power up
GB9909539D0 (en) * 1999-04-27 1999-06-23 Ncipher Corp Limited Data storage and retrieval
JP2001016196A (ja) * 1999-04-28 2001-01-19 Fuji Soft Abc Inc 多重アファイン鍵を用いる暗号化・復号化方法、認証方法、及びこれを用いる各装置
US20050289520A1 (en) * 2004-06-29 2005-12-29 Redvers Consulting, Ltd. Unidirectional cloaking device for source code
US8595273B2 (en) * 2007-01-24 2013-11-26 International Business Machines Corporation Hash algorithm using randomization function

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1190809A (en) * 1967-06-26 1970-05-06 Ericsson Telefon Ab L M Improvements in and relating to the Generation of a Pulse Code
US3651483A (en) * 1969-01-03 1972-03-21 Ibm Method and means for searching a compressed index
GB1382048A (en) * 1971-09-15 1975-01-29 Int Computers Ltd Randomnumber generators
US4086628A (en) * 1971-11-10 1978-04-25 International Business Machines Corporation Directory generation system having efficiency increase with sorted input
US3742460A (en) * 1971-12-20 1973-06-26 Sperry Rand Corp Search memory
US3784743A (en) * 1972-08-23 1974-01-08 Bell Telephone Labor Inc Parallel data scrambler
FR111574A (de) * 1973-12-13 1900-01-01
GB1492260A (en) * 1974-10-29 1977-11-16 Int Computers Ltd Data processing systems
DE2451794C3 (de) * 1974-10-31 1980-07-17 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zum Prüfen digital arbeitender Nachrichtenverbindungen mit zufallsähnlichen Binärzeichenfolgen
GB1513586A (en) * 1975-11-21 1978-06-07 Ferranti Ltd Data processing
US4042913A (en) * 1976-04-30 1977-08-16 International Business Machines Corporation Address key register load/store instruction system
US4099242A (en) * 1976-11-03 1978-07-04 Houston George B One-pass general associative search processor
US4115657A (en) * 1976-11-11 1978-09-19 Datotek, Inc. Random digital code generator
DE2658065A1 (de) * 1976-12-22 1978-07-06 Ibm Deutschland Maschinelles chiffrieren und dechiffrieren
GB1564563A (en) * 1977-05-25 1980-04-10 Int Computers Ltd Data sotrage apparatus
US4309750A (en) * 1978-01-23 1982-01-05 Mitsubishi Denki Kabushiki Kaisha Inverter device
US4290105A (en) * 1979-04-02 1981-09-15 American Newspaper Publishers Association Method and apparatus for testing membership in a set through hash coding with allowable errors
US4264781A (en) * 1979-04-16 1981-04-28 Ncr Corporation Apparatus for encoding and decoding data signals

Also Published As

Publication number Publication date
JPS56501695A (de) 1981-11-19
EP0041549B1 (de) 1988-02-03
EP0041549A4 (de) 1985-04-25
CA1146281A (en) 1983-05-10
US4418275A (en) 1983-11-29
EP0041549A1 (de) 1981-12-16
JPS6360415B2 (de) 1988-11-24
WO1981001758A1 (en) 1981-06-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8327 Change in the person/name/address of the patent owner

Owner name: NCR INTERNATIONAL INC., DAYTON, OHIO, US

8328 Change in the person/name/address of the agent

Free format text: KAHLER, K., DIPL.-ING., 8948 MINDELHEIM KAECK, J., DIPL.-ING. DIPL.-WIRTSCH.-ING., 8910 LANDSBERG FIENER, J., PAT.-ANWAELTE, 8948 MINDELHEIM

8327 Change in the person/name/address of the patent owner

Owner name: AT&T GLOBAL INFORMATION SOLUTIONS INTERNATIONAL IN

8327 Change in the person/name/address of the patent owner

Owner name: NCR INTERNATIONAL, INC. (N.D.GES.D.STAATES DELAWAR

8339 Ceased/non-payment of the annual fee