SG92735A1 - Extended key generator, encryption/decryption unit, extended key generation method, and storage medium - Google Patents

Extended key generator, encryption/decryption unit, extended key generation method, and storage medium

Info

Publication number
SG92735A1
SG92735A1 SG200004785A SG200004785A SG92735A1 SG 92735 A1 SG92735 A1 SG 92735A1 SG 200004785 A SG200004785 A SG 200004785A SG 200004785 A SG200004785 A SG 200004785A SG 92735 A1 SG92735 A1 SG 92735A1
Authority
SG
Singapore
Prior art keywords
extended key
encryption
storage medium
generation method
decryption unit
Prior art date
Application number
SG200004785A
Other languages
English (en)
Inventor
Oomori Motoji
Yokota Kaoru
Sekibe Tsutomu
Tatebayashi Makoto
Original Assignee
Toshiba Kk
Matsushita Electric Ind Co 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
Application filed by Toshiba Kk, Matsushita Electric Ind Co Ltd filed Critical Toshiba Kk
Publication of SG92735A1 publication Critical patent/SG92735A1/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • 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
    • H04L2209/122—Hardware reduction or efficient architectures
    • 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
    • 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)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
SG200004785A 1999-08-31 2000-08-21 Extended key generator, encryption/decryption unit, extended key generation method, and storage medium SG92735A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24417699 1999-08-31

Publications (1)

Publication Number Publication Date
SG92735A1 true SG92735A1 (en) 2002-11-19

Family

ID=17114905

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200004785A SG92735A1 (en) 1999-08-31 2000-08-21 Extended key generator, encryption/decryption unit, extended key generation method, and storage medium

Country Status (9)

Country Link
US (1) US6891950B1 (de)
EP (1) EP1081889B1 (de)
KR (1) KR100402811B1 (de)
CN (1) CN1172235C (de)
DE (1) DE60024739T2 (de)
ID (1) ID27135A (de)
MX (1) MXPA00008484A (de)
SG (1) SG92735A1 (de)
TW (1) TW556111B (de)

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US7564970B2 (en) * 2004-08-12 2009-07-21 Cmla, Llc Exponential data transform to enhance security
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JP4690600B2 (ja) * 2001-08-23 2011-06-01 富士通株式会社 データ保護方法
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DE10201441A1 (de) 2002-01-16 2003-08-14 Infineon Technologies Ag Schiebevorrichtung und Verfahren zum Verschieben
US20030149876A1 (en) * 2002-02-01 2003-08-07 Secure Choice Llc Method and system for performing perfectly secure key exchange and authenticated messaging
US20060034456A1 (en) * 2002-02-01 2006-02-16 Secure Choice Llc Method and system for performing perfectly secure key exchange and authenticated messaging
EP1351430B1 (de) * 2002-04-03 2005-10-05 Matsushita Electric Industrial Co., Ltd. Vorrichtung zur Erzeugung eines erweiterten Schlüssels, Verschlüsselungsvorrichtung und Verschlüsselungssystem
JP2004245988A (ja) * 2003-02-13 2004-09-02 Sony Corp データ処理装置、その方法およびそのプログラムと線形変換回路および暗号化回路
TW595183B (en) * 2003-03-14 2004-06-21 Acer Labs Inc Crypto-system with an inverse key evaluation circuit
DE10345378B4 (de) * 2003-09-30 2010-08-12 Infineon Technologies Ag Verfahren und Vorrichtung zur Ver-/Entschlüsselung
US20050147244A1 (en) * 2003-12-30 2005-07-07 Alexander Moldovyan Method for cryptographic transformation of binary data blocks
CN101288260A (zh) 2005-01-27 2008-10-15 美商内数位科技公司 使用未由他人分享联合随机衍生秘钥方法及系统
US20070005359A1 (en) * 2005-06-30 2007-01-04 David Bowen Method for transmitting transactional commands and data between computer networks
US7873166B2 (en) * 2005-09-13 2011-01-18 Avaya Inc. Method for undetectably impeding key strength of encryption usage for products exported outside the U.S
US20080037775A1 (en) * 2006-03-31 2008-02-14 Avaya Technology Llc Verifiable generation of weak symmetric keys for strong algorithms
US7702100B2 (en) * 2006-06-20 2010-04-20 Lattice Semiconductor Corporation Key generation for advanced encryption standard (AES) Decryption and the like
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
WO2008030523A2 (en) * 2006-09-06 2008-03-13 Bsecured Solutions, Llc Real privacy management authentication system
US10148430B1 (en) * 2013-04-17 2018-12-04 Amazon Technologies, Inc Revocable stream ciphers for upgrading encryption in a shared resource environment
JP2015130580A (ja) * 2014-01-07 2015-07-16 富士通株式会社 データスクランブル装置、セキュリティ装置、セキュリティシステム及びデータスクランブル方法
US9774443B2 (en) * 2015-03-04 2017-09-26 Apple Inc. Computing key-schedules of the AES for use in white boxes
US10073964B2 (en) * 2015-09-25 2018-09-11 Intel Corporation Secure authentication protocol systems and methods
CN112202547B (zh) * 2020-11-11 2022-04-12 衡阳师范学院 一种轻量级分组密码gfcs实现方法、装置及可读存储介质
CN114124348B (zh) * 2021-11-22 2023-07-25 南京信息工程大学 一种基于混沌轮编码的光接入加密方法
CN115208626B (zh) * 2022-06-02 2023-12-01 北京交大微联科技有限公司 铁路信号系统中基于安全通信密文传输的通信方法及装置

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US5949884A (en) * 1996-11-07 1999-09-07 Entrust Technologies, Ltd. Design principles of the shade cipher
EP1052611A1 (de) * 1998-01-27 2000-11-15 Nippon Telegraph and Telephone Corporation Datenwandler und aufzeichnungsmedium zur aufnahme eines programs zum datenumsatz

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Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
EP0618701A2 (de) * 1993-03-11 1994-10-05 Nec Corporation Hardware-Anordnung für Verschlüsselung von Bitblocks während Erneuerung des Schlüssels bei jeder Iteration
US5511123A (en) * 1994-08-04 1996-04-23 Northern Telecom Limited Symmetric cryptographic system for data encryption
US5949884A (en) * 1996-11-07 1999-09-07 Entrust Technologies, Ltd. Design principles of the shade cipher
WO1999014889A1 (en) * 1997-09-17 1999-03-25 Luyster Frank C Improved block cipher method
EP1052611A1 (de) * 1998-01-27 2000-11-15 Nippon Telegraph and Telephone Corporation Datenwandler und aufzeichnungsmedium zur aufnahme eines programs zum datenumsatz

Also Published As

Publication number Publication date
TW556111B (en) 2003-10-01
EP1081889B1 (de) 2005-12-14
CN1291744A (zh) 2001-04-18
CN1172235C (zh) 2004-10-20
DE60024739D1 (de) 2006-01-19
MXPA00008484A (es) 2004-11-10
US6891950B1 (en) 2005-05-10
EP1081889A3 (de) 2002-09-11
EP1081889A2 (de) 2001-03-07
KR20010067121A (ko) 2001-07-12
KR100402811B1 (ko) 2003-10-30
ID27135A (id) 2001-03-01
DE60024739T2 (de) 2006-06-29

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