Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Packet header designating cryptographically protected data
Reexamination Certificate
2007-09-27
2009-12-01
Nguyen, Minh Dieu (Department: 2438)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Packet header designating cryptographically protected data
C713S161000, C709S236000
Reexamination Certificate
active
07627752
ABSTRACT:
A communication system, which performs communication using a transmission packet encrypted by an IP-SEC encrypting method, includes a first encrypting circuit that encrypts a transmission packet by an IP-SEC encrypting method, a second encrypting circuit that encrypt header data to be used to decode the transmission packet encrypted by the first encrypting circuit, and a transmitting circuit that transmit the transmission packet whose header is encrypted by the second encrypting circuit. The communication system further includes a first decoding circuit that decode the authentication data of the reception packet using information to be used to decode the authentication data recorded in the IP-SEC header of the transmission packet and a second decoding circuit that decodes the reception packet using the authentication data decoded by the first decoding circuit.
REFERENCES:
patent: 6219161 (2001-04-01), Chang et al.
patent: 6327660 (2001-12-01), Patel
patent: 6347376 (2002-02-01), Attwood et al.
patent: 6438612 (2002-08-01), Ylonen et al.
patent: 6587680 (2003-07-01), Ala-Laurila et al.
patent: 6904466 (2005-06-01), Ishiyama et al.
patent: 6970459 (2005-11-01), Meier
patent: 6996842 (2006-02-01), Strahm et al.
patent: 7028335 (2006-04-01), Borella et al.
patent: 7082200 (2006-07-01), Aboba et al.
patent: 7143282 (2006-11-01), Takagi et al.
patent: 2002/0006133 (2002-01-01), Kakemizu et al.
patent: 2002/0083046 (2002-06-01), Yamauchi et al.
patent: 2002/0104020 (2002-08-01), Strahm et al.
patent: 2002/0184487 (2002-12-01), Badamo et al.
patent: 2003/0074388 (2003-04-01), Pham et al.
patent: 2004/0193876 (2004-09-01), Donley et al.
patent: 2001-298449 (2001-10-01), None
patent: 2001-313679 (2001-11-01), None
IPsec Seminar Room (No. 2), IPsec Architecture, Computer and Network LAN, vol. 16, No. 9, Sep. 1, 1998, published by Ohmsha Ltd., p. 95-100.
Mastering IPsec, Oct. 25, 2001, published by O'Reilly Japan, Inc., p. 109-137.
Keromytis et al., “Implementing IP-SEC”, Aug. 1, 1997, IEEE, pp. 1948-1952.
Perlman et al., “Key exchange in IPSEC: analysis of IKE”, Nov.-Dec. 2000, IEEE Internet Computing, pp. 50-56.
NEC Corporation
Nguyen Minh Dieu
Sughrue & Mion, PLLC
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