The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 2007
Filed:
Dec. 18, 2001
Yuusaku Ohta, Neyagawa, JP;
Masashi Yamaguchi, Osaka, JP;
Hiroki Yamauchi, Kusatsu, JP;
Matsushita Electric Industrila Co., Ltd., Osaka, JP;
Abstract
A security communication packet processing apparatus () comprises an encryption processing unit () that performs encryption processing and decryption processing in a data block unit of B1 bits, an authentication processing unit () that performs authentication processing in a data block unit of B2(=n×B1) bits in parallel to the encryption processing or the decryption processing in the encryption processing unit () and outputs an authentication value, a data block accumulation unit () that accumulates the data blocks from the encryption processing unit () and outputs the data blocks to the authentication processing unit () when the accumulated amount of the data blocks reaches B2 bits, a packet construction unit () that reconstructs a packet with the data blocks from the encryption processing unit () and the authentication value from the authentication processing unit (), and an encryption and authentication processing control unit () that divides the inputted packet into the data blocks of B1 bits and outputs the data blocks sequentially to the encryption processing unit.