DE3689510D1 - Einrichtung und Verfahren zur Datenverschleierung. - Google Patents

Einrichtung und Verfahren zur Datenverschleierung.

Info

Publication number
DE3689510D1
DE3689510D1 DE86115279T DE3689510T DE3689510D1 DE 3689510 D1 DE3689510 D1 DE 3689510D1 DE 86115279 T DE86115279 T DE 86115279T DE 3689510 T DE3689510 T DE 3689510T DE 3689510 D1 DE3689510 D1 DE 3689510D1
Authority
DE
Germany
Prior art keywords
data obfuscation
obfuscation device
data
obfuscation
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 - Lifetime
Application number
DE86115279T
Other languages
English (en)
Other versions
DE3689510T2 (de
Inventor
Akihiro Shimizu
Shoji Miyaguchi
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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
Priority claimed from JP60250398A external-priority patent/JPH0760292B2/ja
Priority claimed from JP60252650A external-priority patent/JPS62113191A/ja
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Publication of DE3689510D1 publication Critical patent/DE3689510D1/de
Application granted granted Critical
Publication of DE3689510T2 publication Critical patent/DE3689510T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0625—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation with splitting of the data block into left and right halves, e.g. Feistel based algorithms, DES, FEAL, IDEA or KASUMI
    • 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
    • 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
    • H04L2209/125—Parallelization or pipelining, e.g. for accelerating processing of cryptographic operations

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Facsimile Transmission Control (AREA)
DE3689510T 1985-11-08 1986-11-04 Einrichtung und Verfahren zur Datenverschleierung. Expired - Lifetime DE3689510T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP60250398A JPH0760292B2 (ja) 1985-11-08 1985-11-08 データ乱数化装置
JP60252650A JPS62113191A (ja) 1985-11-13 1985-11-13 デ−タ拡散装置

Publications (2)

Publication Number Publication Date
DE3689510D1 true DE3689510D1 (de) 1994-02-17
DE3689510T2 DE3689510T2 (de) 1994-05-19

Family

ID=26539758

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3689510T Expired - Lifetime DE3689510T2 (de) 1985-11-08 1986-11-04 Einrichtung und Verfahren zur Datenverschleierung.
DE3650365T Expired - Lifetime DE3650365T2 (de) 1985-11-08 1986-11-04 Einrichtung zur Datenverschleierung.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE3650365T Expired - Lifetime DE3650365T2 (de) 1985-11-08 1986-11-04 Einrichtung zur Datenverschleierung.

Country Status (3)

Country Link
US (1) US4850019A (de)
EP (2) EP0221538B1 (de)
DE (2) DE3689510T2 (de)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5128996A (en) * 1988-12-09 1992-07-07 The Exchange System Limited Partnership Multichannel data encryption device
US4997288A (en) * 1988-12-09 1991-03-05 The Exchange System Limited Partnership Power supply arrangement for fault-tolerant operation in a microcomputer-based encryption system
US5123047A (en) * 1988-12-09 1992-06-16 The Exchange System Limited Partnership Method of updating encryption device monitor code in a multichannel data encryption system
JP3225440B2 (ja) * 1990-05-18 2001-11-05 アスコム テック エージー デジタル信号ブロックの変換装置およびその使用方法
US5351299A (en) * 1992-06-05 1994-09-27 Matsushita Electric Industrial Co., Ltd. Apparatus and method for data encryption with block selection keys and data encryption keys
JPH0812537B2 (ja) * 1993-03-11 1996-02-07 日本電気株式会社 暗号化装置
JP3053527B2 (ja) * 1993-07-30 2000-06-19 インターナショナル・ビジネス・マシーンズ・コーポレイション パスワードを有効化する方法及び装置、パスワードを生成し且つ予備的に有効化する方法及び装置、認証コードを使用して資源のアクセスを制御する方法及び装置
US5835592A (en) * 1995-06-01 1998-11-10 Chang; Chung Nan Secure, swift cryptographic key exchange
US5583939A (en) * 1995-06-01 1996-12-10 Chung N. Chang Secure, swift cryptographic key exchange
US5966444A (en) * 1996-12-06 1999-10-12 Yuan; Chuan K. Method and system for establishing a cryptographic key agreement using linear protocols
US6292896B1 (en) 1997-01-22 2001-09-18 International Business Machines Corporation Method and apparatus for entity authentication and session key generation
US6005944A (en) * 1997-02-14 1999-12-21 At&T Corp System and method for constructing block ciphers
US5987130A (en) * 1997-03-31 1999-11-16 Chang; Chung Nan Simiplified secure swift cryptographic key exchange
US5970095A (en) * 1997-04-14 1999-10-19 Lockheed Martin Corporation Secure data transmission on a TDM isochronous network
DE19724072C2 (de) * 1997-06-07 1999-04-01 Deutsche Telekom Ag Vorrichtung zur Durchführung eines Blockchiffrierverfahrens
TW396704B (en) * 1997-08-07 2000-07-01 Hitachi Ltd Cipher conversion method, cipher conversion apparatus, decoding method, decoding apparatus, and data communication system
US6038317A (en) * 1997-12-24 2000-03-14 Magliveras; Spyros S. Secret key cryptosystem and method utilizing factorizations of permutation groups of arbitrary order 2l
WO1999038143A1 (fr) 1998-01-27 1999-07-29 Nippon Telegraph And Telephone Corporation Convertisseur de donnees et support d'enregistrement sur lequel est enregistre un programme d'execution de conversion de donnees
KR100296958B1 (ko) * 1998-05-06 2001-09-22 이석우 블록 데이터 암호화 장치
DE19924986B4 (de) * 1998-05-29 2006-03-23 Hitachi, Ltd. Verschlüsselungs-Konversionsvorrichtung, Entschlüsselungs-Konversionsvorrichtung, kryptografisches Kommunikationssystem und elektronische Gebühren-Sammelvorrichtung
AU3324599A (en) * 1999-03-16 2000-10-04 Valentin Alexandrovich Mischenko Method and apparatus for encoding and decoding information
AU1046800A (en) 1999-05-18 2000-03-06 Angel Jose Ferre Herrero Self-corrector randomizer-encryptor system and method
BR9903609A (pt) * 1999-08-27 2001-04-24 Coppe Ufrj Processo de implementação em hardware do algorìtimo criptográfico idea- hipcrypto
TW556111B (en) 1999-08-31 2003-10-01 Toshiba Corp Extended key generator, encryption/decryption unit, extended key generation method, and storage medium
US7428305B1 (en) * 2000-05-02 2008-09-23 Qualcomm Incorporated Generation of keyed integer permutations for message authentication codes
GB2379587B (en) * 2001-09-10 2003-08-20 Simon Alan Spacey A method and apparatus for securing electronic information
US7099469B2 (en) * 2001-10-17 2006-08-29 Motorola, Inc. Method of scrambling and descrambling data in a communication system
JP2003223098A (ja) * 2002-01-29 2003-08-08 Sony Corp ブーリアン・マトリクスに基づく暗号化処理方法、および復号処理方法、並びにデータ通信システム
EP1480371A1 (de) * 2003-05-23 2004-11-24 Mediacrypt AG Vorrichtung und Verfahren zur Ver- und Entschlüsselung eines Datenblocks
US20050147244A1 (en) * 2003-12-30 2005-07-07 Alexander Moldovyan Method for cryptographic transformation of binary data blocks
US7289629B2 (en) * 2004-02-09 2007-10-30 Microsoft Corporation Primitives for fast secure hash functions and stream ciphers
US7519371B2 (en) * 2004-02-09 2009-04-14 Qualcomm Incorporated Multi-hop communications in a wireless network
US7870399B2 (en) * 2006-02-10 2011-01-11 Arxan Defense Systems Software trusted platform module and application security wrapper
US8135130B2 (en) * 2006-06-23 2012-03-13 Panasonic Corporation Data encryption apparatus, data converting method, data converting program, recording medium and integrated circuit
US9578469B2 (en) 2014-10-02 2017-02-21 Motorola Solutions, Inc. Method and system for direct mode communication within a talkgroup

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3370126A (en) * 1964-09-23 1968-02-20 Honeywell Inc Communication apparatus
US3798360A (en) * 1971-06-30 1974-03-19 Ibm Step code ciphering system
US4217586A (en) * 1977-05-16 1980-08-12 General Electric Company Channel estimating reference signal processor for communication system adaptive antennas
DE3044984A1 (de) * 1979-11-30 1982-04-15 Dassault Electronique Integrierte transistorschaltung, insbesondere fuer codierung
NL8203737A (nl) * 1982-09-27 1984-04-16 Nederlanden Staat Inrichting voor vercijfering van digitale signalen met een of meer des-schakelingen.
US4707839A (en) * 1983-09-26 1987-11-17 Harris Corporation Spread spectrum correlator for recovering CCSK data from a PN spread MSK waveform
US4731843A (en) * 1985-12-30 1988-03-15 Paradyne Corporation Method and device of increasing the execution speed of cipher feedback mode of the DES by an arbitrary multiplier

Also Published As

Publication number Publication date
EP0454187A2 (de) 1991-10-30
US4850019A (en) 1989-07-18
EP0454187B1 (de) 1995-08-09
EP0454187A3 (en) 1992-04-29
DE3689510T2 (de) 1994-05-19
EP0221538A2 (de) 1987-05-13
DE3650365T2 (de) 1996-02-08
EP0221538B1 (de) 1994-01-05
DE3650365D1 (de) 1995-09-14
EP0221538A3 (en) 1988-08-10

Similar Documents

Publication Publication Date Title
DE3689510D1 (de) Einrichtung und Verfahren zur Datenverschleierung.
DE3687715D1 (de) Verfahren und vorrichtung zur datenuebertragung.
DE3679035D1 (de) Verfahren und geraet zur aufzeichnung von signalen.
DE3687211D1 (de) Verfahren und vorrichtung zur datenuebertragung.
DE3677430D1 (de) Verfahren und anordnung zur datenuebertragung.
DE3689664D1 (de) Verfahren und Gerät zur Verwaltung von veralteten Datenobjekten.
DE3689533D1 (de) Plasmaphoresesystem und verfahren.
DE3682249D1 (de) Verfahren zur bildbearbeitung und geraet zur bilderzeugung.
DE3889106D1 (de) Verfahren und gerät zur spektraleffizienten digitalen modulation.
DE3750381D1 (de) Verfahren und Gerät zur Layout-Entwurfshilfe.
DE3684146D1 (de) Datenverarbeitungsverfahren und -geraet.
ATE131644T1 (de) Verfahren und gerät zur polygonalen datendekodierung
DE3587535D1 (de) Verfahren und vorrichtung zur numerischen datenkodierung.
DE3751540D1 (de) Verfahren und Vorrichtung zur Datenverarbeitung.
DE3688154D1 (de) Geraet und verfahren zur aufzeichnung vergroesserter punktmatrix-zeichen.
DE3767906D1 (de) Bildaufnahmegeraet und verfahren dafuer.
DE3687360D1 (de) Einrichtung und verfahren zur anzeige.
DE3687237D1 (de) Verfahren und geraet zur versorgung von histogrammdaten.
DE3650332D1 (de) Verfahren und Gerät zur Bilddatenverarbeitung.
DE3673270D1 (de) Verfahren und geraet zur durchfuehrung von datenleseoperationen mit veraenderlicher laenge.
DE3673609D1 (de) Aufzeichnungsgeraet und aufzeichnungsverfahren.
DE3676456D1 (de) Zerstaeubungsvorrichtung und verfahren.
DE3778954D1 (de) Verfahren und geraet zur wellenformkombination.
DE3871422D1 (de) Geraet und verfahren zur informationsaufzeichnung.
DE3586700D1 (de) Vorrichtung und verfahren zur datenverarbeitung.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: HOFFMANN, E., DIPL.-ING., PAT.-ANW., 82166 GRAEFELFING