Cryptography – Electric signal modification – Having mechanical control of signal encryption
Reexamination Certificate
2004-10-27
2010-06-22
Zand, Kambiz (Department: 2434)
Cryptography
Electric signal modification
Having mechanical control of signal encryption
C713S168000
Reexamination Certificate
active
07742594
ABSTRACT:
An apparatus and corresponding method and computer program comprises a key mixing circuit to generate N groups of AES Blocks, each generated based upon a key, a transmitter MAC address, and a start value for a packet number. An input circuit receives N encrypted MPDUs, each comprising the transmitter address and one of N values for the packet number. Each of the N values for the packet number is greater than, or equal to, the start value for the packet number. A decryption circuit decrypts each of the N encrypted MPDUs using the respective one of the N groups of AES Output Blocks. The key mixing circuit generates each of the N groups of AES Output Blocks before the input circuit receives the respective one of the N encrypted MPDUs. The predetermined start value is initialized when the apparatus is initialized and incremented when each of the N groups of AES Output Blocks is generated.
REFERENCES:
patent: 5999629 (1999-12-01), Heer et al.
patent: 6438235 (2002-08-01), Sims, III
patent: 6550011 (2003-04-01), Sims, III
patent: 6683954 (2004-01-01), Searle
patent: 6965674 (2005-11-01), Whelan et al.
patent: 7245724 (2007-07-01), Chesson et al.
patent: 7350077 (2008-03-01), Meier et al.
patent: 7380135 (2008-05-01), Nishimoto et al.
patent: 2004/0034785 (2004-02-01), Tai et al.
patent: 2004/0083362 (2004-04-01), Park et al.
patent: 2004/0142710 (2004-07-01), Liang
patent: 2004/0202317 (2004-10-01), Demjanenko et al.
patent: 2005/0172119 (2005-08-01), Eckhardt et al.
patent: 2005/0278548 (2005-12-01), Lin et al.
IEEE P802.11i, IEEE Standard for Information technology—Telecommun. and information exchange between systems—local and metropolitan area networks—specific requirements; part 11: wireless mediuum access control (MAC) and physical layer (PHY) sepcifications: Amendmetn 6; Medium Access Control (MAC) Security Enhancements, Apr. 2004, pp. 1-171.
IEEE P802.11i, IEEE Standard for Information technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements; Part 11: Wireless Medium Access Control (MAC) and Physical Layer (PHY) specifications: Amendment 6: Medium Access Control (MAC) Security Enhancements, Apr. 2004, pp. 1-171.
“802.16 IEEE Standard for Local and Metropolitan Area Networks; Part 16: Air Interface for Fixed Broadband Wireless Access Systems,” 802.16 IEEE Standard for Local and Metropolitan Area Networks, Oct. 1, 2004, pp. i-xxxiv and pp. 1-857, IEEE Std 802.16-2004, IEEE, United States.
IEEE Standard 802.11 (1999 Edition; 542 pages); IEEE Standard for Information Technology; Telecommunications and Information Exchange Between Systems; Local and Metropolitan Area Networks; Specific Requirements; Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications.
IEEE Standard 802.11a (1999 Edition; Amdended 2000; 92 pages); Supplement to IEEE Standard for Information Technology; Telecommunications and Information Exchange Between Systems; Local and Metropolitan Area Networks; Specific Requirements; Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications; High-Speed Physical Layer in the 5 GHz Band.
IEEE Standard P802.11G, Draft Supplement to Standard for Information technology—Telecommuncations and information exchange beween systems—Local and metropolitan area networks—Specific requirements, Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Further Higher Data Rate Extension in the 2.4 GHz Band, Apr. 2003, pp. 1-69.
IEEE Standard 802.11b (Sep. 16, 1999 Edition) 96 pages); Supplement to IEEE Standard for Information Technology; Telecommunications and Information Exchange Between Systems; Local and Metropolitan Area Networks; Specific Requirements; Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications; Higher-Speed Physical Layer Extension ni the 2.4 GHz Band.
IEEE Standard 802.11i (Apr. 2004) 177 pages); IEEE Standard for Information Technology; Telecommunications and Information Exchange Between Systems; Local and Metropolitan Area Networks; Specific Requirements; Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications; Amendment 6: Medium Access Control (MAC) Security Enhancements.
IEEE 802.20-PD-06 (Jul. 16, 2004) 24 pages); Draft 802.20 Permanent Document; System Requirements for IEEE 802.20 Mobile Broadband Wireless Access Systems—Version 14.
IEEE Std. 802.16; IEEE Standard for Local and metropolitan area networks; Part 16: Air Interface for Fixed Broadband Wireless Access Systems; Apr. 8, 2002; pp. 1-322.
U.S. Appl. No. 10/974,388, filed Oct. 27, 2004.
Kopikare Rahul
Loc Peter
Gee Jason K
Marvell International Ltd.
Zand Kambiz
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