EP1016240A1 - Verfahren zur verbesserten blockverschlüsselung - Google Patents

Verfahren zur verbesserten blockverschlüsselung

Info

Publication number
EP1016240A1
EP1016240A1 EP98949350A EP98949350A EP1016240A1 EP 1016240 A1 EP1016240 A1 EP 1016240A1 EP 98949350 A EP98949350 A EP 98949350A EP 98949350 A EP98949350 A EP 98949350A EP 1016240 A1 EP1016240 A1 EP 1016240A1
Authority
EP
European Patent Office
Prior art keywords
round
bits
bit
segment
data
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Withdrawn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
EP98949350A
Other languages
English (en)
French (fr)
Inventor
Frank C. Luyster
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1016240A1 publication Critical patent/EP1016240A1/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Withdrawn legal-status Critical Current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
    • H04L9/0618—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
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
    • 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
    • H04L2209/04—Masking or blinding
    • H04L2209/046—Masking or blinding of operations, operands or results of the 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
    • H04L2209/12—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)
  • Storage Device Security (AREA)
EP98949350A 1997-09-17 1998-09-16 Verfahren zur verbesserten blockverschlüsselung Withdrawn EP1016240A1 (de)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US5914297P 1997-09-17 1997-09-17
US59142P 1997-09-17
US6299297P 1997-10-23 1997-10-23
US62992P 1997-10-23
US6433197P 1997-10-30 1997-10-30
US64331P 1997-10-30
PCT/US1998/019255 WO1999014889A1 (en) 1997-09-17 1998-09-16 Improved block cipher method
2001-06-11

Publications (1)

Publication Number Publication Date
EP1016240A1 true EP1016240A1 (de) 2000-07-05

Family

ID=27369592

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98949350A Withdrawn EP1016240A1 (de) 1997-09-17 1998-09-16 Verfahren zur verbesserten blockverschlüsselung

Country Status (3)

Country Link
EP (1) EP1016240A1 (de)
AU (1) AU9569098A (de)
WO (1) WO1999014889A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2345229B (en) * 1998-12-23 2003-12-03 Motorola Ltd Method for encrypting data
TW556111B (en) 1999-08-31 2003-10-01 Toshiba Corp Extended key generator, encryption/decryption unit, extended key generation method, and storage medium
JP3505482B2 (ja) 2000-07-12 2004-03-08 株式会社東芝 暗号化装置、復号装置及び拡大鍵生成装置、拡大鍵生成方法並びに記録媒体
US7051201B2 (en) 2002-03-15 2006-05-23 International Business Machines Corporation Securing cached data in enterprise environments
DE10258323A1 (de) * 2002-12-13 2004-06-24 Giesecke & Devrient Gmbh Verschlüsselungsverfahren
CN1777089B (zh) * 2005-11-24 2010-11-17 上海森田科学技术研究所有限公司 一种复数移相加密解密方法
CN100581101C (zh) 2007-11-19 2010-01-13 西安西电捷通无线网络通信有限公司 一种基于分组密码算法的加密处理设备
GB201505434D0 (en) * 2015-03-30 2015-05-13 Irdeto Bv Cryptographic processing
US10771235B2 (en) * 2016-09-01 2020-09-08 Cryptography Research Inc. Protecting block cipher computation operations from external monitoring attacks
CN109598134B (zh) * 2018-12-07 2023-05-30 北京宏思电子技术有限责任公司 一种分组加密算法的高速运行方法和高速运行装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5727062A (en) * 1995-07-06 1998-03-10 Ritter; Terry F. Variable size block ciphers
US5724428A (en) * 1995-11-01 1998-03-03 Rsa Data Security, Inc. Block encryption algorithm with data-dependent rotations
US5838794A (en) * 1996-01-11 1998-11-17 Teledyne Electronic Technologies Method and apparatus for inter-round mixing in iterated block substitution systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9914889A1 *

Also Published As

Publication number Publication date
WO1999014889A1 (en) 1999-03-25
AU9569098A (en) 1999-04-05

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