(19)
(11) EP 1 441 465 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:
13.04.2011 Bulletin 2011/15

(45) Mention of the grant of the patent:
26.01.2011 Bulletin 2011/04

(21) Application number: 02770255.4

(22) Date of filing: 24.10.2002
(51) International Patent Classification (IPC): 
H04L 9/14(2006.01)
 H04L 9/10(2006.01)
(86) International application number:
PCT/JP2002/011050
(87) International publication number:
WO 2003/039066 (08.05.2003 Gazette 2003/19)

(54)

ENCRYPTED COMMUNICATION APPARATUS

VORRICHTUNG ZUR VERSCHLÜSSELTEN KOMMUNIKATION

APPAREIL DE COMMUNICATION CHIFFREE

(84) Designated Contracting States:
DE FR GB

(30) Priority: 29.10.2001 JP 2001330190

(43) Date of publication of application:
28.07.2004 Bulletin 2004/31

(73) Proprietor: Mitsubishi Electric Corporation
Tokyo 100-8310 (JP)

(72) Inventors:
  • YAMADA, Keiki
    Tokyo 100-8310 (JP)
  • SATO, Tsuneo
    Tokyo 100-8310 (JP)

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


(56) References cited: : 
JP-A- 3 139 717
JP-A- 11 145 950
US-A- 5 524 116
 JP-A- 10 154 976
JP-A- 61 017 175
US-A- 6 118 873
   
  • LIH-YANG WANG ET AL: "On the hardware design for DES cipher in tamper resistant devices against differential fault analysis" ISCAS 2000. PROCEEDINGS OF THE 2000 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS. GENEVA, SWITZERLAND, MAY 28-31, 2000, IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, NEW YORK, NY, US, vol. 1 of 5, 28 May 2000 (2000-05-28), pages 697-700, XP002202154 ISBN: 0-7803-5483-4
  • KARRI R ET AL: "Concurrent error detection of fault-based side-channel cryptanalysis of 128-bit symmetric block ciphers" PROCEEDINGS OF THE 38TH. ANNUAL DESIGN AUTOMATION CONFERENCE. (DAC). LAS VEGAS, NV, JUNE 18 - 22, 2001, PROCEEDINGS OF THE DESIGN AUTOMATION CONFERENCE, NEW YORK, NY : ACM, US, vol. CONF. 38, 18 June 2001 (2001-06-18), pages 579-584, XP010552454 ISBN: 1-58113-297-2
   
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).