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:
Dec. 31, 2002
Filed:
Feb. 05, 1999
Takeshi Saijo, Obu, JP;
Matsushita Electric Industrial Co., Ltd., Osaka-fu, JP;
Abstract
The output data storage unit allocates a memory area and stores cipher text and plain text; the input data size calculation unit calculates the sizes of cipher text and plain text; the type storage unit stores a cryptographic processing type and an algorithm type; the type providing unit outputs the cryptographic processing type and the algorithm type to the type information storage unit ; the type information storage unit stores an output size table, cryptographic processing type information, and algorithm type information; the output data size judgement unit calculates an output data size according to an input data size, the cryptographic processing type, and the algorithm type.