DE69721439D1 - Kryptographisches verfahren und einrichtung zum nichtlinearen zusammenfugen eines datenblocks und eines schlussels - Google Patents

Kryptographisches verfahren und einrichtung zum nichtlinearen zusammenfugen eines datenblocks und eines schlussels

Info

Publication number
DE69721439D1
DE69721439D1 DE69721439T DE69721439T DE69721439D1 DE 69721439 D1 DE69721439 D1 DE 69721439D1 DE 69721439 T DE69721439 T DE 69721439T DE 69721439 T DE69721439 T DE 69721439T DE 69721439 D1 DE69721439 D1 DE 69721439D1
Authority
DE
Germany
Prior art keywords
key
data block
cryptographic method
linear assembly
linear
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
DE69721439T
Other languages
English (en)
Other versions
DE69721439T2 (de
Inventor
Boer Huibert Den
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.)
Irdeto BV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE69721439D1 publication Critical patent/DE69721439D1/de
Application granted granted Critical
Publication of DE69721439T2 publication Critical patent/DE69721439T2/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
    • H04L9/002—Countermeasures against attacks on cryptographic mechanisms
    • 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
    • H04L2209/24—Key scheduling, i.e. generating round keys or sub-keys for block encryption
DE69721439T 1996-05-20 1997-05-13 Kryptographisches verfahren und einrichtung zum nichtlinearen zusammenfugen eines datenblocks und eines schlussels Expired - Lifetime DE69721439T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1003159 1996-05-20
NL1003159 1996-05-20
PCT/IB1997/000544 WO1997044935A1 (en) 1996-05-20 1997-05-13 Cryptographic method and apparatus for non-linearly merging a data block and a key

Publications (2)

Publication Number Publication Date
DE69721439D1 true DE69721439D1 (de) 2003-06-05
DE69721439T2 DE69721439T2 (de) 2004-03-18

Family

ID=19762893

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69721439T Expired - Lifetime DE69721439T2 (de) 1996-05-20 1997-05-13 Kryptographisches verfahren und einrichtung zum nichtlinearen zusammenfugen eines datenblocks und eines schlussels

Country Status (5)

Country Link
US (2) US6298136B1 (de)
EP (1) EP0839418B1 (de)
JP (1) JP3992742B2 (de)
DE (1) DE69721439T2 (de)
WO (1) WO1997044935A1 (de)

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US8068571B2 (en) * 2008-06-12 2011-11-29 Harris Corporation Featureless coherent chaotic amplitude modulation
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US9544133B2 (en) * 2009-12-26 2017-01-10 Intel Corporation On-the-fly key generation for encryption and decryption
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WO1997044935A1 (en) * 1996-05-20 1997-11-27 Philips Electronics N.V. Cryptographic method and apparatus for non-linearly merging a data block and a key

Also Published As

Publication number Publication date
US7079651B2 (en) 2006-07-18
US20020034295A1 (en) 2002-03-21
JP3992742B2 (ja) 2007-10-17
EP0839418A1 (de) 1998-05-06
EP0839418B1 (de) 2003-05-02
DE69721439T2 (de) 2004-03-18
WO1997044935A1 (en) 1997-11-27
US6298136B1 (en) 2001-10-02
JPH11509940A (ja) 1999-08-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: IRDETO B.V., HOOFDDORP, NL

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

Representative=s name: VIERING, JENTSCHURA & PARTNER, 81675 MUENCHEN