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WO2009020060A1 - 共通鍵ブロック暗号化装置、共通鍵ブロック暗号化方法及びプログラム - Google Patents

共通鍵ブロック暗号化装置、共通鍵ブロック暗号化方法及びプログラム Download PDF

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Publication number
WO2009020060A1
WO2009020060A1 PCT/JP2008/063847 JP2008063847W WO2009020060A1 WO 2009020060 A1 WO2009020060 A1 WO 2009020060A1 JP 2008063847 W JP2008063847 W JP 2008063847W WO 2009020060 A1 WO2009020060 A1 WO 2009020060A1
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WO
WIPO (PCT)
Prior art keywords
block
bit
common key
block encryption
key block
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.)
Ceased
Application number
PCT/JP2008/063847
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English (en)
French (fr)
Inventor
Kazuhiko Minematsu
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP2009526432A priority Critical patent/JP5402632B2/ja
Priority to US12/672,346 priority patent/US8577032B2/en
Publication of WO2009020060A1 publication Critical patent/WO2009020060A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)

Abstract

　任意のブロックサイズｓに対応するストレージ用途に適したブロック暗号の提供。共通鍵ブロック暗号化装置は、可変長ｓビットの平文に鍵付き置換を行って、固定長ｎビットの第１のブロック（ＸＡ）と、ｓ－ｎビットの第２のブロック（ＸＢ）と、を生成し、第１のブロック（ＸＡ）を入力として、ｔｗｅａｋを使用するｎビットブロックｔｗｅａｋａｂｌｅブロック暗号（ＴＷＢ）を用いて第３のブロック（ＹＡ）を生成する。次に、共通鍵ブロック暗号化装置は、少なくとも既知平文攻撃に対し理論的安全性を有する任意の暗号を用いて、第３のブロック（ＹＡ）と第１のブロック（ＸＡ）との群演算結果からｓ－ｎビットの乱数ブロック（Ｚ）を生成する。最後に、共通鍵ブロック暗号化装置は、乱数ブロック（Ｚ）及び第２のブロック（ＸＢ）の群演算結果と、第３のブロック（ＹＡ）とに対し鍵付き置換を行って、ｎビットの第５のブロック（ＣＡ）と、ｓ－ｎビットの第６のブロック（ＣＢ）と、を生成し、ｓビットの暗号文を得る。
PCT/JP2008/063847 2007-08-06 2008-08-01 共通鍵ブロック暗号化装置、共通鍵ブロック暗号化方法及びプログラム Ceased WO2009020060A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009526432A JP5402632B2 (ja) 2007-08-06 2008-08-01 共通鍵ブロック暗号化装置、共通鍵ブロック暗号化方法及びプログラム
US12/672,346 US8577032B2 (en) 2007-08-06 2008-08-01 Common key block encryption device, common key block encryption method, and program

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-204132 2007-08-06
JP2007204132 2007-08-06

Publications (1)

Publication Number Publication Date
WO2009020060A1 true WO2009020060A1 (ja) 2009-02-12

Family

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PCT/JP2008/063847 Ceased WO2009020060A1 (ja) 2007-08-06 2008-08-01 共通鍵ブロック暗号化装置、共通鍵ブロック暗号化方法及びプログラム

Country Status (3)

Country Link
US (1) US8577032B2 (ja)
JP (1) JP5402632B2 (ja)
WO (1) WO2009020060A1 (ja)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012105352A1 (ja) * 2011-01-31 2012-08-09 日本電気株式会社 ブロック暗号化装置、復号装置、暗号化方法、復号方法およびプログラム
JP5293612B2 (ja) * 2007-12-26 2013-09-18 日本電気株式会社 暗号化装置、復号装置、暗号化方法、復号方法およびプログラム
JP2015158665A (ja) * 2014-02-21 2015-09-03 韓國電子通信研究院Ｅｌｅｃｔｒｏｎｉｃｓ ａｎｄ Ｔｅｌｅｃｏｍｍｕｎｉｃａｔｉｏｎｓ Ｒｅｓｅａｒｃｈ Ｉｎｓｔｉｔｕｔｅ 形態保存暗号化のための可変長ブロック暗号装置および方法
JP2016540266A (ja) * 2013-11-29 2016-12-22 ポートランド・ステイト・ユニバーシティ 可変入力長調整可能暗号の構造および使用
CN103812658B (zh) * 2014-01-21 2018-01-16 沈阳工业大学 一种基于流密码的安全通信协议
CN107615702A (zh) * 2016-03-24 2018-01-19 慧与发展有限责任合伙企业 文本加密
US10326589B2 (en) 2015-09-28 2019-06-18 Mitsubishi Electric Corporation Message authenticator generating apparatus, message authenticator generating method, and computer readable recording medium
US11177936B2 (en) 2017-02-22 2021-11-16 Mitsubishi Electric Corporation Message authenticator generation apparatus
US11876888B2 (en) 2020-02-06 2024-01-16 Mitsubishi Electric Corporation Encryption device, decryption device, encryption method, decryption method, and computer readable medium

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2010024003A1 (ja) * 2008-08-29 2012-01-26 日本電気株式会社 倍ブロック長ブロック暗号化装置、復号装置、暗号化方法及び復号方法、及びそのプログラム
US8687802B2 (en) * 2009-03-30 2014-04-01 The Regents Of The University Of California Method and system for accelerating the deterministic enciphering of data in a small domain
EP3131230B1 (en) * 2014-04-28 2019-12-25 Ichiro Kazawa Encryption method, program, and system
US20240356727A1 (en) * 2015-06-28 2024-10-24 Peter Lablans Method and Apparatus for Activating a Remote Device
US12143468B2 (en) * 2015-12-20 2024-11-12 Lcip Jv Cryptographic computer machines with novel switching devices
US12425189B1 (en) * 2015-12-20 2025-09-23 Peter Lablans Cryptographic computer machines with novel switching devices
US9614668B1 (en) * 2016-09-14 2017-04-04 ISARA Corporation Conversion schemes for cryptography systems
CN107526963A (zh) * 2017-08-30 2017-12-29 深圳市风云实业有限公司 密钥查找设备、方法和计算机可读存储介质
US10454681B1 (en) 2017-11-17 2019-10-22 ISARA Corporation Multi-use key encapsulation processes
US10031795B1 (en) 2017-12-22 2018-07-24 ISARA Corporation Using conversion schemes in public key cryptosystems
US10061636B1 (en) 2017-12-22 2018-08-28 ISARA Corporation Conversion schemes for public key cryptosystems
EP3584989B1 (en) * 2018-06-18 2023-09-27 Secure-IC SAS Tweakable block ciphers for secure data encryption
KR102565443B1 (ko) 2018-10-26 2023-08-16 삼성에스디에스 주식회사 암호 알고리즘 생성 장치 및 방법, 암호화 장치 및 방법
KR102565442B1 (ko) 2018-10-26 2023-08-16 삼성에스디에스 주식회사 암호 알고리즘 생성 장치 및 방법, 암호화 장치 및 방법
JP7347501B2 (ja) * 2019-04-18 2023-09-20 日本電気株式会社 Ｍａｃタグリスト生成装置、ｍａｃタグリスト検証装置、方法及びプログラム
WO2022031563A1 (en) * 2020-08-01 2022-02-10 Ntt Research Inc. Enhanced security for existing public key infrastructure
US12309256B2 (en) * 2022-11-16 2025-05-20 Silicon Laboratries Inc. Apparatus for cryptographic operations on information and associated methods
US12476789B1 (en) * 2024-04-02 2025-11-18 Peter Lablans Computational function transformation (CFT) in computer implemented cryptography

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001324925A (ja) * 2000-03-09 2001-11-22 Hitachi Ltd 共通鍵暗号方法及び装置
WO2006064763A1 (ja) * 2004-12-17 2006-06-22 Nec Corporation 共通鍵ブロック暗号化装置、共通鍵ブロック暗号化方法及び共通鍵ブロック暗号化プログラム

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2262551C (en) * 1996-08-16 2002-09-17 Bell Communications Research, Inc. Improved cryptographically secure pseudo-random bit generator for fast and secure encryption
US5949884A (en) * 1996-11-07 1999-09-07 Entrust Technologies, Ltd. Design principles of the shade cipher
US7227951B2 (en) * 2001-11-06 2007-06-05 Ntt Docomo, Inc. Enhanced ANSI X9.17 pseudorandom number generators with forward security
AU2003270296A1 (en) * 2002-09-03 2004-03-29 The Regents Of The University Of California Block cipher mode of operation for constructing a wide-blocksize block cipher from a conventional block cipher
JP2007086421A (ja) 2005-09-22 2007-04-05 Hitachi Ltd 特定コードを回避する暗号化装置および暗号化方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001324925A (ja) * 2000-03-09 2001-11-22 Hitachi Ltd 共通鍵暗号方法及び装置
WO2006064763A1 (ja) * 2004-12-17 2006-06-22 Nec Corporation 共通鍵ブロック暗号化装置、共通鍵ブロック暗号化方法及び共通鍵ブロック暗号化プログラム

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
BERNSTEIN D.J.: "The Poly1305-AES message-authentication code", FSE 2005, 2005, Retrieved from the Internet <URL:http://www.cr.yp.to/mac/poly1305-20041101.pdf> *
MOSES LISKOV: "Tweakable Block Ciphers", CRYPTO'02, 2002, Retrieved from the Internet <URL:http://www.cs.berkeley.edu/~daw/papers/tweak-crypto02.pdf> *
SHAI HALEVI: "MMH: Software Message Authentication in the Gbit/second Rates", FSE'97, 1997, Retrieved from the Internet <URL:http://www.citeserx.ist.psu.edu/viewdoc/summary?doi=10.1.1.56.8968> *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5293612B2 (ja) * 2007-12-26 2013-09-18 日本電気株式会社 暗号化装置、復号装置、暗号化方法、復号方法およびプログラム
WO2012105352A1 (ja) * 2011-01-31 2012-08-09 日本電気株式会社 ブロック暗号化装置、復号装置、暗号化方法、復号方法およびプログラム
JP5365750B2 (ja) * 2011-01-31 2013-12-11 日本電気株式会社 ブロック暗号化装置、復号装置、暗号化方法、復号方法およびプログラム
US8891761B2 (en) 2011-01-31 2014-11-18 Nec Corporation Block encryption device, decryption device, encrypting method, decrypting method and program
US9571270B2 (en) 2013-11-29 2017-02-14 Portland State University Construction and uses of variable-input-length tweakable ciphers
JP2016540266A (ja) * 2013-11-29 2016-12-22 ポートランド・ステイト・ユニバーシティ 可変入力長調整可能暗号の構造および使用
JP2017097376A (ja) * 2013-11-29 2017-06-01 ポートランド・ステイト・ユニバーシティ 可変入力長調整可能暗号の構造および使用
US10009171B2 (en) 2013-11-29 2018-06-26 Portland State University Construction and uses of variable-input-length tweakable ciphers
CN103812658B (zh) * 2014-01-21 2018-01-16 沈阳工业大学 一种基于流密码的安全通信协议
JP2015158665A (ja) * 2014-02-21 2015-09-03 韓國電子通信研究院Ｅｌｅｃｔｒｏｎｉｃｓ ａｎｄ Ｔｅｌｅｃｏｍｍｕｎｉｃａｔｉｏｎｓ Ｒｅｓｅａｒｃｈ Ｉｎｓｔｉｔｕｔｅ 形態保存暗号化のための可変長ブロック暗号装置および方法
US10326589B2 (en) 2015-09-28 2019-06-18 Mitsubishi Electric Corporation Message authenticator generating apparatus, message authenticator generating method, and computer readable recording medium
CN107615702A (zh) * 2016-03-24 2018-01-19 慧与发展有限责任合伙企业 文本加密
US11070356B2 (en) 2016-03-24 2021-07-20 Hewlett Packard Enterprise Development Lp Text encryption
US11177936B2 (en) 2017-02-22 2021-11-16 Mitsubishi Electric Corporation Message authenticator generation apparatus
US11876888B2 (en) 2020-02-06 2024-01-16 Mitsubishi Electric Corporation Encryption device, decryption device, encryption method, decryption method, and computer readable medium

Also Published As

Publication number Publication date
JP5402632B2 (ja) 2014-01-29
JPWO2009020060A1 (ja) 2010-11-04
US20110211691A1 (en) 2011-09-01
US8577032B2 (en) 2013-11-05

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