WO2002017655A3 - Method and apparatus for generating an unique encryption key stream for each data block in a frame - Google Patents

Method and apparatus for generating an unique encryption key stream for each data block in a frame Download PDF

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Publication number
WO2002017655A3
WO2002017655A3 PCT/US2001/025368 US0125368W WO0217655A3 WO 2002017655 A3 WO2002017655 A3 WO 2002017655A3 US 0125368 W US0125368 W US 0125368W WO 0217655 A3 WO0217655 A3 WO 0217655A3
Authority
WO
WIPO (PCT)
Prior art keywords
encryption key
unique encryption
data block
key stream
frame
Prior art date
Application number
PCT/US2001/025368
Other languages
French (fr)
Other versions
WO2002017655A2 (en
Inventor
John P Monson
Mark S Nowak
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Priority to AU2001284870A priority Critical patent/AU2001284870A1/en
Publication of WO2002017655A2 publication Critical patent/WO2002017655A2/en
Publication of WO2002017655A3 publication Critical patent/WO2002017655A3/en

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Classifications

    • 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
    • H04L63/0457—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 wherein the sending and receiving network entities apply dynamic encryption, e.g. stream encryption
    • 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

Abstract

The present invention provides a method and an apparatus for generating an unique encryption key stream for each data block in a frame during a transmission through an over-the-air interface. A private key (310) and a dynamic system parameter (320) are combined to generate a session key (330). The dynamic system parameter (320) is based on information relating to the transmission such as the source, the location, the time, the method, and the type of the transmission. An unique encryption key stream is generated from the session key (320) for each data block in a frame. Information is encrypted with the unique encryption key stream to enhance security for transmissions through an over-the-air interface.
PCT/US2001/025368 2000-08-23 2001-08-13 Method and apparatus for generating an unique encryption key stream for each data block in a frame WO2002017655A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001284870A AU2001284870A1 (en) 2000-08-23 2001-08-13 Method and apparatus for generating an unique encryption key stream for each data block in a frame

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US64492200A 2000-08-23 2000-08-23
US09/644,922 2000-08-23

Publications (2)

Publication Number Publication Date
WO2002017655A2 WO2002017655A2 (en) 2002-02-28
WO2002017655A3 true WO2002017655A3 (en) 2002-05-16

Family

ID=24586902

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/025368 WO2002017655A2 (en) 2000-08-23 2001-08-13 Method and apparatus for generating an unique encryption key stream for each data block in a frame

Country Status (2)

Country Link
AU (1) AU2001284870A1 (en)
WO (1) WO2002017655A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2640885C (en) 2005-12-22 2012-12-04 Interdigital Technology Corporation Method and apparatus for data security and automatic repeat request implementation in a wireless communication system
JP5526747B2 (en) * 2009-12-04 2014-06-18 パナソニック株式会社 Decryption device, encryption device, decryption method, encryption method, and communication system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5987139A (en) * 1995-09-27 1999-11-16 Telefonaktiebolaget Lm Ericsson Method for encryption of information
WO2000054456A1 (en) * 1999-03-08 2000-09-14 Nokia Mobile Phones Ltd. Method of ciphering data transmission in a radio system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5987139A (en) * 1995-09-27 1999-11-16 Telefonaktiebolaget Lm Ericsson Method for encryption of information
WO2000054456A1 (en) * 1999-03-08 2000-09-14 Nokia Mobile Phones Ltd. Method of ciphering data transmission in a radio system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
LO C-C ET AL: "SECURE COMMUNICATION MECHANISMS FOR GSM NETWORKS", IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, IEEE INC. NEW YORK, US, VOL. 45, NR. 4, PAGE(S) 1074-1080, ISSN: 0098-3063, XP000928090 *
MEHROTRA A ET AL: "MOBILITY AND SECURITY MANAGEMENT IN THE GSM SYSTEM AND SOME PROPOSED FUTURE IMPROVEMENTS", PROCEEDINGS OF THE IEEE, IEEE. NEW YORK, US, VOL. 86, NR. 7, PAGE(S) 1480-1497, ISSN: 0018-9219, XP000854168 *

Also Published As

Publication number Publication date
WO2002017655A2 (en) 2002-02-28
AU2001284870A1 (en) 2002-03-04

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