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:
May. 04, 2004
Filed:
Mar. 31, 2000
Applicant:
Inventors:
Kazuhiko Sako, Isehara, JP;
Satoshi Oguni, Hadano, JP;
Takushi Tamura, Hadano, JP;
Naoki Hirayama, Hadano, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/06 ;
U.S. Cl.
CPC ...
H04L 9/06 ;
Abstract
A method of deciphering ciphered data in which in parallel to a deciphering process for first ciphered data, a first chaining value to be used for deciphering second ciphered data is generated, by using the generated chaining value, a process of deciphering the second ciphered data is executed, and in parallel to a deciphering process for the second ciphered data, a second chaining value to be used for deciphering third ciphered data is generated.