Communications system and packet structure

Details Communications system and packet structure Communications system and packet structure

2004-05-25

2008-11-25

Moazzami, Nasser (Department: 2135)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

Reexamination Certificate

active

07457954

ABSTRACT:
In a communications system, a transmitter transmits message data included in communications packets to a receiver. A data region of the communications packet includes an original data region D[n], an authentication data region P[n], and a control region C. The original data region D[n] includes data as a transmission object that is the message data itself or one of the data portions into which the message data is divided so that each of the data portions can be contained in a single packet. The authentication data region P[n] includes authentication information used for substitution detection of the data included in the original data region D[n]. The control region C includes control information. This structure enables the substitution detection to be performed with respect to the respective communications packets into which the message data is divided, resulting in decrease in the substitution detection period.

REFERENCES:
patent: 4661657 (1987-04-01), Grenzebach et al.
patent: 6343341 (2002-01-01), Cabrera et al.
patent: 6918034 (2005-07-01), Sengodan et al.
patent: 2001/0043702 (2001-11-01), Elteto et al.
patent: 2003/0012181 (2003-01-01), The
patent: 2003/0131233 (2003-07-01), Garstin et al.
patent: A-7-131449 (1995-05-01), None
patent: A-10-143724 (1998-05-01), None
patent: A-10-269290 (1998-10-01), None
patent: A-2001-127747 (2001-05-01), None
patent: A-2001-318600 (2001-11-01), None
“A procedure for the message authentication” in a web page URL:http://www5d.biglobe.ne.jp/˜engineer/doc/security/security—ch3—01.htm, Oct. 20, 2003 (Discussed on p. 3 of the specification).
Eiji Okamoto,Introduction +0 Encryption Theory, p. 129-132, Kyouritsu Syuppan Kabushiki-Gaisha, Feb. 25, 1993 (Concise explanation in English translation of Office Action).
Office Action dated Mar. 11, 2008 in corresponding Japanese Patent Application No. 2003-173851 (and English translation).

Affiliated with

Also associated with

Rating

Communications system and packet structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Communications system and packet structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Communications system and packet structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4041447