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:
Sep. 19, 2000
Filed:
Jun. 04, 1998
Applicant:
Inventors:
Kazuo Takaragi, Ebina, JP;
Hiroyuki Kurumatani, Yokohama, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L / ; H04L / ; H04L / ;
U.S. Cl.
CPC ...
380 28 ; 380 37 ; 380 42 ;
Abstract
Hash values, keys and cipher text which have a high degree of data scrambling are generated rapidly. When a message is sent, divisional data of the message are input, and injection extension processing is performed so that the data length of output data is longer than the data length of input data. Further, hash values are generated by a hash function containing multiplication processing, cyclic shift processing, etc.
Takaragi, Kazuo. (2000). Hash value generating method and device, data encryption method and (U.S. Patent No. 6122375). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6122375
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