DE69830646D1 - Verfahren und vorrichtung zur verbesserung des cmea algorithmus unter verwendung von verbesserten transformationen - Google Patents

Verfahren und vorrichtung zur verbesserung des cmea algorithmus unter verwendung von verbesserten transformationen

Info

Publication number
DE69830646D1
DE69830646D1 DE69830646T DE69830646T DE69830646D1 DE 69830646 D1 DE69830646 D1 DE 69830646D1 DE 69830646 T DE69830646 T DE 69830646T DE 69830646 T DE69830646 T DE 69830646T DE 69830646 D1 DE69830646 D1 DE 69830646D1
Authority
DE
Germany
Prior art keywords
transformations
improving
improved
cmea algorithm
cmea
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
DE69830646T
Other languages
English (en)
Other versions
DE69830646T2 (de
Inventor
H Etzel
John Frank
Nelson Heer
Joseph Mcnelis
B Mizikovsky
John Rance
Dale Shipp
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.)
Nokia of America Corp
Original Assignee
Lucent Technologies Inc
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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Application granted granted Critical
Publication of DE69830646D1 publication Critical patent/DE69830646D1/de
Publication of DE69830646T2 publication Critical patent/DE69830646T2/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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/03—Protecting confidentiality, e.g. by encryption
    • H04W12/033—Protecting confidentiality, e.g. by encryption of the user plane, e.g. user's traffic
    • 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
    • H04L2209/80—Wireless

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
DE69830646T 1997-07-29 1998-07-29 Verfahren und vorrichtung zur verbesserung des cmea algorithmus unter verwendung von verbesserten transformationen Expired - Lifetime DE69830646T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US5401897P 1997-07-29 1997-07-29
US54018P 1997-07-29
PCT/US1998/015883 WO1999007103A1 (en) 1997-07-29 1998-07-29 Methods and apparatus for enhanced cmea employing enhanced transformations

Publications (2)

Publication Number Publication Date
DE69830646D1 true DE69830646D1 (de) 2005-07-28
DE69830646T2 DE69830646T2 (de) 2006-05-11

Family

ID=21988232

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69830646T Expired - Lifetime DE69830646T2 (de) 1997-07-29 1998-07-29 Verfahren und vorrichtung zur verbesserung des cmea algorithmus unter verwendung von verbesserten transformationen

Country Status (9)

Country Link
US (1) US6377687B1 (de)
EP (1) EP0928526B1 (de)
JP (2) JP3466204B2 (de)
KR (1) KR100573180B1 (de)
CN (1) CN1236516A (de)
BR (1) BR9806124A (de)
CA (1) CA2266665A1 (de)
DE (1) DE69830646T2 (de)
WO (1) WO1999007103A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6075859A (en) * 1997-03-11 2000-06-13 Qualcomm Incorporated Method and apparatus for encrypting data in a wireless communication system
JP2001359165A (ja) 2000-06-15 2001-12-26 Mitsubishi Electric Corp モバイル通信システム
DE10103609A1 (de) * 2001-01-28 2002-08-14 Audioton Kabelwerk Gmbh Freisprecheinrichtung für den Betrieb von Mobiltelefonen in Kraftfahrzeugen
DE10103608A1 (de) * 2001-01-28 2002-08-14 Audioton Kabelwerk Gmbh Freisprecheinrichtung für den Betrieb von Mobiltelefonen in Kraftfahrzeugen
JP4884976B2 (ja) * 2003-12-11 2012-02-29 イルデト・コーポレート・ビー・ヴイ 各暗号化ラウンドのコア暗号化関数を隠蔽するために置換を用いたブロック暗号化システム
US20050193197A1 (en) * 2004-02-26 2005-09-01 Sarvar Patel Method of generating a cryptosync
ATE427617T1 (de) * 2006-11-22 2009-04-15 Research In Motion Ltd System und verfahren fur ein sicheres aufzeichnungsprotokoll unter verwendung von gemeinsam genutzten kenntnissen von mobilteilnehmerberechtigungsnachweisen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1522775A (en) * 1922-04-14 1925-01-13 William F Friedman Secret-signaling apparatus for automatically enciphering and deciphering messages
US1516180A (en) * 1922-06-05 1924-11-18 William F Friedman Secret signaling system employing apparatus for automatically enciphering and deciphering messages
US5159634A (en) * 1991-09-13 1992-10-27 At&T Bell Laboratories Cryptosystem for cellular telephony
US5410599A (en) * 1992-05-15 1995-04-25 Tecsec, Incorporated Voice and data encryption device
GB9211648D0 (en) * 1992-06-02 1992-07-15 Racal Datacom Ltd Data communication system
US5594797A (en) * 1995-02-22 1997-01-14 Nokia Mobile Phones Variable security level encryption

Also Published As

Publication number Publication date
EP0928526A1 (de) 1999-07-14
CA2266665A1 (en) 1999-02-11
WO1999007103A1 (en) 1999-02-11
JP3466204B2 (ja) 2003-11-10
JP2000508441A (ja) 2000-07-04
KR100573180B1 (ko) 2006-04-24
CN1236516A (zh) 1999-11-24
KR20000068663A (ko) 2000-11-25
BR9806124A (pt) 1999-08-31
JP2003263109A (ja) 2003-09-19
EP0928526B1 (de) 2005-06-22
DE69830646T2 (de) 2006-05-11
US6377687B1 (en) 2002-04-23

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