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Extract from the Register of European Patents

EP About this file: EP1421461

EP1421461 - Space-efficient, Side-channel Attack Resistant Table Lookups [Right-click to bookmark this link]
Former [2004/22]SPACE-EFFICIENT, SIDE-CHANNEL ATTACK RESISTANT TABLE LOOKUPS
[2011/13]
StatusNo opposition filed within time limit
Status updated on  28.09.2012
Database last updated on 19.10.2024
Most recent event   Tooltip18.04.2014Lapse of the patent in a contracting state
New state(s): TR		published on 21.05.2014  [2014/21]
Applicant(s)For all designated states
International Business Machines Corporation
New Orchard Road
Armonk, NY 10504 / US
[2011/47]
Former [2011/33]For all designated states
International Business Machines Corporation
New Orchard Road
Armonk, NY 10504 / US
For:AT  BE  BG  CH  CY  CZ  DE  DK  EE  ES  FI  FR  GB  GR  IE  IT  LI  LU  MC  NL  PT  SE  SK  TR 
IBM DEUTSCHLAND GMBH
Pascalstrasse 100
D-70569 Stuttgart / DE
Former [2011/16]For all designated states
International Business Machines Corporation
New Orchard Road
Armonk, NY 10504 / US
For:LU 
IBM DEUTSCHLAND GMBH
Pascalstrasse 100
D-70569 Stuttgart / DE
Former [2011/16]For all designated states
International Business Machines Corporation
New Orchard Road
Armonk, NY 10504 / US
Former [2004/22]For all designated states
International Business Machines Corporation
New Orchard Road
Armonk, NY 10504 / US
Inventor(s)01 / CHARI, Suresh, N.
12 Crossway
Scarsdale, NY 10583 / US
02 / RAO, Josyula, R.
161 Orchard Road 1N
Briarcliff Manor, NY 10510 / US
03 / ROHATGI, Pankaj
703 Pelham Road 404
New Rochelle, NY 10805 / US
04 / SCHERZER, Helmut
Pfalzhaldenweg 6/1
72070 Tübingen / DE
 [2004/26]
Former [2004/22]01 / CHARI, Suresh, N.
82 Riverview Avenue
Tarrytown, NY 10591 / US
02 / RAO, Josyula, R.
161 Orchard Road 1N
Briarcliff Manor, NY 10510 / US
03 / ROHATGI, Pankaj
703 Pelham Road 404
New Rochelle, NY 10805 / US
04 / SCHERZER, Helmut
Pfalzhaldenweg 6/1
72070 Tübingen / DE
Representative(s)Kuisma, Sirpa Tuulikki
IBM Deutschland Management & Business Support GmbH
Patentwesen u. Urheberrecht
71137 Ehningen / DE
[N/P]
Former [2011/47]Kuisma, Sirpa Tuulikki
IBM Deutschland Management & Business Support GmbH Patentwesen u. Urheberrecht
71137 Ehningen / DE
Former [2009/34]Kuisma, Sirpa Tuulikki
IBM Deutschland GmbH Management & Business Support GmbH Patentwesen u. Urheberrecht
71137 Ehningen / DE
Former [2006/06]Kuisma, Sirpa Tuulikki
IBM Deutschland GmbH Patente und Urheberrecht Pascalstrasse 100
70548 Stuttgart / DE
Former [2006/05]Kuisma, Sirpa Tuulikki
IBM Deutschland GmbH Patentwesen und Urheberrecht Pascalstraße
D-70548 Stuttgart / DE
Former [2004/22]Teufel, Fritz, Dipl.-Phys.
Patentwesen und Urheberrecht, IBM Deutschland GmbH, Postfach
70548 Stuttgart / DE
Application number, filing date02767298.901.08.2002
[2004/22]
WO2002EP08581
Priority number, dateUS20010312204P14.08.2001         Original published format: US 312204 P
US2001094372031.08.2001         Original published format: US 943720
[2004/22]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report
No.:WO03017067
Date:27.02.2003
Language:EN
[2003/09]
Type: A2 Application without search report 
No.:EP1421461
Date:26.05.2004
Language:EN
The application published by WIPO in one of the EPO official languages on 27.02.2003 takes the place of the publication of the European patent application.
[2004/22]
Type: B1 Patent specification 
No.:EP1421461
Date:23.11.2011
Language:EN
[2011/47]
Search report(s)International search report - published on:EP25.03.2004
ClassificationIPC:G06F21/00
[2011/47]
CPC:
G06F21/556 (EP,US); H04L9/002 (EP,US); H04L2209/043 (EP,US);
H04L2209/08 (EP,US)
Former IPC [2004/22]G06F1/00
Designated contracting statesAT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   IE,   IT,   LI,   MC,   NL,   PT,   SE,   SK,   TR [2011/33]
Former [2004/22]AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  SE,  SK,  TR 
TitleGerman:Raumeffizientes Tabellennachschlagen mit Schutz gegen Angriff aus Seitenkanälen[2011/13]
English:Space-efficient, Side-channel Attack Resistant Table Lookups[2011/13]
French:Consultations de table résistantes a une attaque par effets collateraux (dits side-channel) et peu encombrantes[2011/13]
Former [2004/22]RAUMEFFIZIENTES TABELLENNACHSCHLAGEN MIT SCHUTZ GEGEN ANGRIFF AUS SEITENKANÄLEN
Former [2004/22]SPACE-EFFICIENT, SIDE-CHANNEL ATTACK RESISTANT TABLE LOOKUPS
Former [2004/22]CONSULTATIONS DE TABLE RESISTANT A UNE ATTAQUE PAR EFFETS COLLATERAUX (DITS SIDE-CHANNEL) ET PEU ENCOMBRANTES
Entry into regional phase05.03.2004National basic fee paid 
05.03.2004Designation fee(s) paid 
05.03.2004Examination fee paid 
Examination procedure28.02.2003Request for preliminary examination filed
International Preliminary Examining Authority: EP
05.03.2004Amendment by applicant (claims and/or description)
05.03.2004Examination requested  [2004/22]
22.11.2005Despatch of a communication from the examining division (Time limit: M04)
09.12.2005Reply to a communication from the examining division
03.05.2007Despatch of a communication from the examining division (Time limit: M04)
04.09.2007Reply to a communication from the examining division
16.10.2009Despatch of a communication from the examining division (Time limit: M04)
16.02.2010Reply to a communication from the examining division
21.12.2010Despatch of a communication from the examining division (Time limit: M02)
07.02.2011Reply to a communication from the examining division
25.03.2011Communication of intention to grant the patent
17.05.2011Fee for grant paid
17.05.2011Fee for publishing/printing paid
Divisional application(s)The date of the Examining Division's first communication in respect of the earliest application for which a communication has been issued is  22.11.2005
Opposition(s)24.08.2012No opposition filed within time limit [2012/44]
Fees paidRenewal fee
13.08.2004Renewal fee patent year 03
15.08.2005Renewal fee patent year 04
11.08.2006Renewal fee patent year 05
15.08.2007Renewal fee patent year 06
18.08.2008Renewal fee patent year 07
26.08.2009Renewal fee patent year 08
19.08.2010Renewal fee patent year 09
22.08.2011Renewal fee patent year 10
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipAT23.11.2011
BE23.11.2011
CY23.11.2011
CZ23.11.2011
DK23.11.2011
EE23.11.2011
FI23.11.2011
IT23.11.2011
NL23.11.2011
SE23.11.2011
SK23.11.2011
TR23.11.2011
BG23.02.2012
GR24.02.2012
ES05.03.2012
PT23.03.2012
IE01.08.2012
[2014/21]
Former [2013/33]AT23.11.2011
BE23.11.2011
CY23.11.2011
CZ23.11.2011
DK23.11.2011
EE23.11.2011
FI23.11.2011
IT23.11.2011
NL23.11.2011
SE23.11.2011
SK23.11.2011
BG23.02.2012
GR24.02.2012
ES05.03.2012
PT23.03.2012
IE01.08.2012
Former [2013/29]AT23.11.2011
BE23.11.2011
CY23.11.2011
CZ23.11.2011
DK23.11.2011
EE23.11.2011
FI23.11.2011
IT23.11.2011
NL23.11.2011
SE23.11.2011
SK23.11.2011
BG23.02.2012
GR24.02.2012
ES05.03.2012
PT23.03.2012
Former [2013/22]AT23.11.2011
BE23.11.2011
CY23.11.2011
CZ23.11.2011
DK23.11.2011
EE23.11.2011
IT23.11.2011
NL23.11.2011
SE23.11.2011
SK23.11.2011
BG23.02.2012
GR24.02.2012
ES05.03.2012
PT23.03.2012
Former [2013/07]AT23.11.2011
BE23.11.2011
CY23.11.2011
CZ23.11.2011
DK23.11.2011
EE23.11.2011
IT23.11.2011
NL23.11.2011
SE23.11.2011
SK23.11.2011
BG23.02.2012
GR24.02.2012
PT23.03.2012
Former [2012/37]BE23.11.2011
CY23.11.2011
CZ23.11.2011
DK23.11.2011
EE23.11.2011
IT23.11.2011
NL23.11.2011
SE23.11.2011
SK23.11.2011
BG23.02.2012
GR24.02.2012
PT23.03.2012
Former [2012/36]BE23.11.2011
CY23.11.2011
CZ23.11.2011
DK23.11.2011
EE23.11.2011
NL23.11.2011
SE23.11.2011
SK23.11.2011
BG23.02.2012
GR24.02.2012
PT23.03.2012
Former [2012/35]BE23.11.2011
CY23.11.2011
CZ23.11.2011
DK23.11.2011
EE23.11.2011
NL23.11.2011
SE23.11.2011
BG23.02.2012
GR24.02.2012
PT23.03.2012
Former [2012/34]BE23.11.2011
CY23.11.2011
CZ23.11.2011
NL23.11.2011
SE23.11.2011
GR24.02.2012
PT23.03.2012
Former [2012/28]BE23.11.2011
CY23.11.2011
NL23.11.2011
SE23.11.2011
GR24.02.2012
PT23.03.2012
Former [2012/25]BE23.11.2011
NL23.11.2011
SE23.11.2011
GR24.02.2012
PT23.03.2012
Former [2012/24]NL23.11.2011
SE23.11.2011
GR24.02.2012
PT23.03.2012
Former [2012/23]NL23.11.2011
GR24.02.2012
PT23.03.2012
Cited inExaminationWO9967919
 WO0131422
    - CHARI S ET AL, "TOWARDS SOUND APPROACHES TO COUNTERACT POWER-ANALYSIS ATTACKS", LECTURE NOTES IN COMPUTER SCIENCE (ICICS 2002), SPRINGER VERLAG, BERLIN; DE, (19990101), vol. 1666, pages 398 - 412, XP001179143

DOI:   http://dx.doi.org/10.1007/3-540-48405-1_26
    - MESSERGES T S, "SECURING THE AES FINALISTS AGAINST POWER ANALYSIS ATTACKS", FAST SOFTWARE ENCRYPTION. INTERNATIONAL WORKSHOP, XX, XX, (20000401), vol. 1978, pages 150 - 164, XP001040960
by applicant   - SURESH CHARI; CHARANJIT S. JUTLA; JOSYULA R. RAO; PANKAJ ROHATGI, TOWARDS SOUND APPROACHES TO COUNTERACT POWER ANALYSIS ATTACKS
    - "Advances in Cryptology- CRYPTO '99", Lecture Notes in Computer Science, SPRINGER, pages 398 - 412
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.