BLOCK ENCRYPTION DEVICE USING AUXILIARY CONVERSION

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EP 1 193 665 B8

(12)	CORRECTED EUROPEAN PATENT SPECIFICATION
	Note: Bibliography reflects the latest situation

(15)	Correction information:
	Corrected version no 1 (W1 B1)

(48)	Corrigendum issued on:
	11.07.2012 Bulletin 2012/28

(45)	Mention of the grant of the patent:
	15.02.2012 Bulletin 2012/07

(21)	Application number: 01912172.2

(22)	Date of filing: 08.03.2001

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International Patent Classification (IPC):

H04L 9/06^(2006.01)

(86)	International application number:
	PCT/JP2001/001796

(87)	International publication number:
	WO 2001/067425 (13.09.2001 Gazette 2001/37)

(54)	BLOCK ENCRYPTION DEVICE USING AUXILIARY CONVERSION BLOCKVERSCHLÜSSELUNGSEINRICHTUNG UNTER VERWENDUNG VON HILFSUMWANDLUNGEN SYSTEME DE CHIFFRAGE DE BLOCS UTILISANT LA CONVERSION AUXILIAIRE

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

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Priority:

09.03.2000 JP 2000064614

(43)	Date of publication of application:
	03.04.2002 Bulletin 2002/14

(60)	Divisional application:
	06010073.2 / 1686719
	06010074.0 / 1686720
	06010075.7 / 1686721
	06010076.5 / 1689113
	06010077.3 / 1689114
	06010078.1 / 1686722

(73)	Proprietors:
	MITSUBISHI DENKI KABUSHIKI KAISHA Chiyoda-ku Tokyo 100-8310 (JP) Nippon Telegraph and Telephone Corporation Chiyoda-ku Tokyo 100-0004 (JP)

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Inventors:

MATSUI, Mitsuru, c/o Mitsubishi Denki K.K.
Tokyo 100-8310 (JP)
TOKITA, Toshio, c/o Mitsubishi Denki K.K.
Tokyo 100-8310 (JP)
NAKAJIMA, Junko, c/o Mitsubishi Denki K.K.
Tokyo 100-8310 (JP)
KANDA, Masayuki, c/o Nippon Telegraph and Telephone Corporation
Tokyo 100-0004 (JP)
MORIAI, Shiho, c/o Nippon Telegraph and Telephone Corporation
Tokyo 100-0004 (JP)
AOKI, Kazumaro, c/o Nippon Telegraph and Telephone Corporation
Tokyo 100-0004 (JP)

(74)	Representative: Pfenning, Meinig & Partner GbR
	Patent- und Rechtsanwälte Theresienhöhe 13 80339 München 80339 München (DE)

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References cited: :

WO-A1-97/09705
JP-A- 11 052 849

JP-A- 9 269 727

MATSUI M: "New block encryption algorithm MISTY" FAST SOFTWARE ENCRYPTION. 4TH INTERNATIONAL WORKSHOP, FSE '97 PROCEEDINGS SPRINER-VERLAG BERLIN, GERMANY, 1997, pages 54-68, XP002367857 ISBN: 3-540-63247-6
KANDA M ET AL: "E2-a new 128-bit block cipher" IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS, COMMUNICATIONS AND COMPUTER SCIENCES INST. ELECTRON. INF. & COMMUN. ENG JAPAN, vol. E83-A, no. 1, January 2000 (2000-01), pages 48-59, XP002367858 ISSN: 0916-8508
FUMIHIKO SANO ET AL.: 'Kakucho feistel gata angou kei ni okeru random kansuu ichi to shoumei kanou anzensei no kankei ni tsuite' 1997 NEN, ANGOU TO JOHO SECURITY SYMPOSIUM, SCIS97-24C 31 January 1997, pages 1 - 15, XP002942208
'Applied cryptography', 1995, JOHN WILEY & SONS, INC. XP002942209 * page 336 - page 339 *
KAZUMARO AOKI ET AL.: '128 Bit block angou camellia' DENSHI JOHO TSUUSHIN GAKKAI GIJUTSU KENKYU HOKOKU (ISEC2000-73 vol. 100, no. 76, 18 May 2000, pages 47 - 75, XP002942210
KAZUMARO AOKI ET AL.: '128 Bit block angou camellia no jissou hyouka' DENSHI JOHO TSUSSHIN GAKKAI GIJUTSU KENKYU HOKOKU (ISEC2000-73) vol. 100, no. 324, 22 September 2000, pages 131 - 138, XP002942211

Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).