JP4515716B2 - 拡大鍵生成装置、暗号化装置および暗号化システム - Google Patents

拡大鍵生成装置、暗号化装置および暗号化システム Download PDF

Info

Publication number
JP4515716B2
JP4515716B2 JP2003067218A JP2003067218A JP4515716B2 JP 4515716 B2 JP4515716 B2 JP 4515716B2 JP 2003067218 A JP2003067218 A JP 2003067218A JP 2003067218 A JP2003067218 A JP 2003067218A JP 4515716 B2 JP4515716 B2 JP 4515716B2
Authority
JP
Japan
Prior art keywords
data
key
unit
expanded
conversion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2003067218A
Other languages
English (en)
Japanese (ja)
Other versions
JP2004004603A (ja
JP2004004603A5 (enExample
Inventor
薫 横田
基司 大森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corp, Matsushita Electric Industrial Co Ltd filed Critical Panasonic Corp
Priority to JP2003067218A priority Critical patent/JP4515716B2/ja
Publication of JP2004004603A publication Critical patent/JP2004004603A/ja
Publication of JP2004004603A5 publication Critical patent/JP2004004603A5/ja
Application granted granted Critical
Publication of JP4515716B2 publication Critical patent/JP4515716B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

JP2003067218A 2002-04-03 2003-03-12 拡大鍵生成装置、暗号化装置および暗号化システム Expired - Fee Related JP4515716B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003067218A JP4515716B2 (ja) 2002-04-03 2003-03-12 拡大鍵生成装置、暗号化装置および暗号化システム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002101074 2002-04-03
JP2003067218A JP4515716B2 (ja) 2002-04-03 2003-03-12 拡大鍵生成装置、暗号化装置および暗号化システム

Publications (3)

Publication Number Publication Date
JP2004004603A JP2004004603A (ja) 2004-01-08
JP2004004603A5 JP2004004603A5 (enExample) 2006-03-02
JP4515716B2 true JP4515716B2 (ja) 2010-08-04

Family

ID=30446595

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003067218A Expired - Fee Related JP4515716B2 (ja) 2002-04-03 2003-03-12 拡大鍵生成装置、暗号化装置および暗号化システム

Country Status (1)

Country Link
JP (1) JP4515716B2 (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1766568A1 (en) * 2004-06-14 2007-03-28 The University of North Carolina at Greensboro Systems and methods for digital content security
WO2009087972A1 (ja) * 2008-01-09 2009-07-16 Nec Corporation データ送信装置、データ受信装置、これらの方法、記録媒体、そのデータ通信システム
JP4764932B2 (ja) * 2009-02-03 2011-09-07 株式会社日立製作所 再生信号の評価方法および光ディスク装置
JP4764939B2 (ja) 2009-04-14 2011-09-07 株式会社日立製作所 記録条件の調整方法及び光ディスク装置
JP4812881B2 (ja) * 2010-01-20 2011-11-09 日立コンシューマエレクトロニクス株式会社 記録条件の調整方法及び光ディスク装置
JP4877406B2 (ja) * 2010-06-03 2012-02-15 株式会社日立製作所 再生信号の評価方法および光ディスク装置
KR101312374B1 (ko) * 2011-07-25 2013-09-27 소프트포럼 주식회사 데이터 크기 조정 장치 및 방법

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5003596A (en) * 1989-08-17 1991-03-26 Cryptech, Inc. Method of cryptographically transforming electronic digital data from one form to another
JPH06102820A (ja) * 1992-09-22 1994-04-15 Sony Corp 暗号装置
JPH06102821A (ja) * 1992-09-22 1994-04-15 Sony Corp 暗号装置
JPH0927803A (ja) * 1995-07-11 1997-01-28 Nippon Telegr & Teleph Corp <Ntt> 暗号化／復号化装置
JP3782210B2 (ja) * 1997-06-30 2006-06-07 日本電信電話株式会社 暗号装置
JP2934431B1 (ja) * 1998-05-28 1999-08-16 日本電信電話株式会社 暗号鍵スケジュール装置、およびそのプログラム記録媒体
JP2000056679A (ja) * 1998-08-11 2000-02-25 Fujitsu Ltd Ｄｅｓの鍵スケジュール装置
JP2000066586A (ja) * 1998-08-24 2000-03-03 Toshiba Corp データ処理装置及び通信システム並びに記録媒体
JP3389210B2 (ja) * 1999-08-31 2003-03-24 松下電器産業株式会社 拡大鍵生成装置、暗復号装置、拡大鍵生成方法、及び記憶媒体
JP3505482B2 (ja) * 2000-07-12 2004-03-08 株式会社東芝 暗号化装置、復号装置及び拡大鍵生成装置、拡大鍵生成方法並びに記録媒体
JP3942073B2 (ja) * 2000-07-13 2007-07-11 富士通株式会社 拡大鍵生成装置、拡大鍵生成プログラムおよび記録媒体
JP4596686B2 (ja) * 2001-06-13 2010-12-08 富士通株式会社 Ｄｐａに対して安全な暗号化

Also Published As

Publication number Publication date
JP2004004603A (ja) 2004-01-08

Similar Documents

Publication Publication Date Title
CA2449672C (en) Block encryption device using auxiliary conversion
JP2760799B2 (ja) 暗号方式
CN101162557B (zh) 密码处理装置和密码处理方法
US8165288B2 (en) Cryptographic processing apparatus and cryptographic processing method, and computer program
US8396210B2 (en) Cryptographic processing apparatus and cryptographic processing method, and computer program
US20140192973A1 (en) Encryption processing apparatus, encryption processing method, and computer program
JPWO2001067425A1 (ja) 補助変換を用いたブロック暗号装置
JPWO2009087972A1 (ja) データ送信装置、データ受信装置、これらの方法、コンピュータプログラム、そのデータ通信システム
CN100382485C (zh) 设计最优加密函数的方法和优化的加密设备
JP2011512562A (ja) アクセス及び通信に関するデータのランダム暗号化及び復号化方法
EP1351430B1 (en) Expansion key generating device, encryption device and encryption system
CN100393026C (zh) 二进制数据块加密变换方法
JP4515716B2 (ja) 拡大鍵生成装置、暗号化装置および暗号化システム
JPH0697930A (ja) ブロック暗号処理装置
JP5182295B2 (ja) 暗号化装置及び暗号処理方法
JP3782210B2 (ja) 暗号装置
KR100494560B1 (ko) Ｒｉｊｎｄａｅｌ암호를 이용한 블록 데이터 실시간암호복호화 장치 및 방법
JP5338327B2 (ja) 暗号処理装置
JPH09251267A (ja) 暗号化装置及び暗号化方法
JP3190648B2 (ja) データ暗号化装置及びその方法
JPH10153954A (ja) 暗号装置
JP2870532B2 (ja) 暗号変換装置
JPH0744375A (ja) 暗号化データ処理装置
JPH10153955A (ja) 暗号装置
JPH10153953A (ja) 暗号装置

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060112

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060112

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090707

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090828

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20100413

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20100513

R150 Certificate of patent or registration of utility model

Ref document number: 4515716

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130521

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130521

Year of fee payment: 3

LAPS Cancellation because of no payment of annual fees