"Data Conversion Device, Data Conversion Method, And Program"

Abstract: There is realized a data conversion device that performs generation of a hash value with improved analysis resistance and a high degree of safety. There are provided a stirring processing section performing a data stirring process on input data; and a compression processing section performing a data compression process on input data including data segments which are divisions of message data, the message data being a target of a data conversion. Part of multi-stage compression subsections is configured to perform a data compression process based on both of output of the stirring processing section and the data segments in the message data. There is provided such a configuration that the stirring process is executed at least on fixed timing of a compression processing round of plural rounds and thus, there is realized a data conversion device that performs generation of a hash value with improved analysis resistance and a high degree of safety.

Patent Information

Application #

Filing Date

18 February 2011

Publication Number

49/2011

Publication Type

INA

Invention Field

COMPUTER SCIENCE

Status

Email

Parent Application

Applicants

SONY CORPORATION

1-7-1 KONAN, MINATO-KU, TOKYO 1080075, JAPAN

Inventors

1. TAIZO SHIRAI

C/O SONY CORPORATION, 1-7-1 KONAN, MINATO-KU, TOKYO 1080075, JAPAN

2. KYOJI SHIBUTANI

C/O SONY CORPORATION, 1-7-1 KONAN, MINATO-KU, TOKYO 1080075, JAPAN

3. SHIHO MORIAI

C/O SONY CORPORATION, 1-7-1 KONAN, MINATO-KU, TOKYO 1080075, JAPAN

4. TORU AKISHITA

C/O SONY CORPORATION, 1-7-1 KONAN, MINATO-KU, TOKYO 1080075, JAPAN

5. TETSU IWATA

C/O NAGOYA UNIVERSITY, 1, FURO-CHO, CHIKUSA-KU, NAGOYA-SHI, AICHI 464-8601, JAPAN

Specification

Documents

Application Documents

#	Name	Date
1	1183-delnp-2011-GPA.pdf	2011-10-01
2	1183-delnp-2011-Form-5.pdf	2011-10-01
3	1183-delnp-2011-Form-3.pdf	2011-10-01
4	1183-delnp-2011-Form-2.pdf	2011-10-01
5	1183-delnp-2011-Form-1.pdf	2011-10-01
6	1183-delnp-2011-Drawings.pdf	2011-10-01
7	1183-delnp-2011-Description (Complete).pdf	2011-10-01
8	1183-delnp-2011-Correspondence-others.pdf	2011-10-01
9	1183-delnp-2011-Claims.pdf	2011-10-01
10	1183-delnp-2011-Abstract.pdf	2011-10-01
11	1183-DELNP-2011-Form-3-(23-01-2012).pdf	2012-01-23
12	1183-DELNP-2011-Correspondence-Others-(23-01-2012).pdf	2012-01-23
13	1183-delnp-2011-Form-18-(08-08-2012).pdf	2012-08-08
14	1183-delnp-2011-Correspondence-Others-(08-08-2012).pdf	2012-08-08
15	1183-DELNP-2011-FER.pdf	2018-10-18
16	1183-DELNP-2011-AbandonedLetter.pdf	2019-09-20

Search Strategy

1	Search_16-10-2018.pdf