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Extract from the Register of European Patents

EP About this file: EP2332040

EP2332040 - Countermeasure securing exponentiation based cryptography [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  22.03.2013
Database last updated on 11.09.2024
Most recent event   Tooltip18.07.2014Lapse of the patent in a contracting state
New state(s): HU		published on 20.08.2014  [2014/34]
Applicant(s)For all designated states
Gemalto SA
6, rue de la Verrerie
92190 Meudon / FR
[2011/24]
Inventor(s)01 / VIGILANT, David
Gemalto Sa
Intellectual Property Dpt
6 rue de la Verrerie
F-92197 Meudon / FR
 [2012/20]
Former [2011/24]01 / VIGILANT, David
Gemalto Sa Intellectual Property Dpt 6 rue de la Verrerie
F-92197 Meudon / FR
Representative(s)Lotaut, Yacine Diaw
Thales Dis France SAS
Intellectual Property Department
6, rue de la Verrerie
92190 Meudon / FR
[N/P]
Former [2012/20]Lotaut, Yacine Diaw
Gemalto SA 6, rue de la Verrerie
FR-92197 Meudon Cedex / FR
Former [2011/24]Lotaut, Yacine Diaw
Gemalto SA 6, rue de la Verrerie
FR-92197 Meudon Cedex / FR
Application number, filing date09781287.930.07.2009
[2011/24]
WO2009EP59867
Priority number, dateEP2008030545306.08.2008         Original published format: EP 08305453
[2011/24]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report
No.:WO2010015562
Date:11.02.2010
Language:EN
[2010/06]
Type: A2 Application without search report 
No.:EP2332040
Date:15.06.2011
Language:EN
The application published by WIPO in one of the EPO official languages on 11.02.2010 takes the place of the publication of the European patent application.
[2011/24]
Type: B1 Patent specification 
No.:EP2332040
Date:16.05.2012
Language:EN
[2012/20]
Search report(s)International search report - published on:EP01.04.2010
ClassificationIPC:G06F7/72
[2011/24]
CPC:
G06F7/723 (EP,US)
Designated contracting statesAT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   SE,   SI,   SK,   SM,   TR [2011/24]
TitleGerman:Gegenmassname zum Schutz von auf potenzierung basierender Kryptographie[2011/24]
English:Countermeasure securing exponentiation based cryptography[2011/24]
French:Contre-mesure pour sécuriser la cryptographie à base d'exponentiation[2011/24]
Entry into regional phase04.02.2011National basic fee paid 
04.02.2011Designation fee(s) paid 
04.02.2011Examination fee paid 
Examination procedure04.02.2011Amendment by applicant (claims and/or description)
04.02.2011Examination requested  [2011/24]
27.07.2011Despatch of a communication from the examining division (Time limit: M04)
30.08.2011Reply to a communication from the examining division
07.12.2011Communication of intention to grant the patent
29.03.2012Fee for grant paid
29.03.2012Fee 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  27.07.2011
Opposition(s)19.02.2013No opposition filed within time limit [2013/17]
Fees paidRenewal fee
29.07.2011Renewal fee patent year 03
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  TooltipHU30.07.2009
AT16.05.2012
BE16.05.2012
CY16.05.2012
CZ16.05.2012
DK16.05.2012
EE16.05.2012
FI16.05.2012
HR16.05.2012
IT16.05.2012
LT16.05.2012
LV16.05.2012
MK16.05.2012
MT16.05.2012
NL16.05.2012
PL16.05.2012
RO16.05.2012
SE16.05.2012
SI16.05.2012
SK16.05.2012
SM16.05.2012
TR16.05.2012
IE30.07.2012
LU30.07.2012
MC31.07.2012
BG16.08.2012
NO16.08.2012
GR17.08.2012
ES27.08.2012
IS16.09.2012
PT17.09.2012
[2014/34]
Former [2014/27]AT16.05.2012
BE16.05.2012
CY16.05.2012
CZ16.05.2012
DK16.05.2012
EE16.05.2012
FI16.05.2012
HR16.05.2012
IT16.05.2012
LT16.05.2012
LV16.05.2012
MK16.05.2012
MT16.05.2012
NL16.05.2012
PL16.05.2012
RO16.05.2012
SE16.05.2012
SI16.05.2012
SK16.05.2012
SM16.05.2012
TR16.05.2012
IE30.07.2012
LU30.07.2012
MC31.07.2012
BG16.08.2012
NO16.08.2012
GR17.08.2012
ES27.08.2012
IS16.09.2012
PT17.09.2012
Former [2014/21]AT16.05.2012
BE16.05.2012
CY16.05.2012
CZ16.05.2012
DK16.05.2012
EE16.05.2012
FI16.05.2012
HR16.05.2012
IT16.05.2012
LT16.05.2012
LV16.05.2012
MK16.05.2012
MT16.05.2012
NL16.05.2012
PL16.05.2012
RO16.05.2012
SE16.05.2012
SI16.05.2012
SK16.05.2012
TR16.05.2012
IE30.07.2012
MC31.07.2012
BG16.08.2012
NO16.08.2012
GR17.08.2012
ES27.08.2012
IS16.09.2012
PT17.09.2012
Former [2013/34]AT16.05.2012
BE16.05.2012
CY16.05.2012
CZ16.05.2012
DK16.05.2012
EE16.05.2012
FI16.05.2012
HR16.05.2012
IT16.05.2012
LT16.05.2012
LV16.05.2012
MK16.05.2012
MT16.05.2012
NL16.05.2012
PL16.05.2012
RO16.05.2012
SE16.05.2012
SI16.05.2012
SK16.05.2012
IE30.07.2012
MC31.07.2012
BG16.08.2012
NO16.08.2012
GR17.08.2012
ES27.08.2012
IS16.09.2012
PT17.09.2012
Former [2013/33]AT16.05.2012
BE16.05.2012
CY16.05.2012
CZ16.05.2012
DK16.05.2012
EE16.05.2012
FI16.05.2012
HR16.05.2012
IT16.05.2012
LT16.05.2012
LV16.05.2012
MK16.05.2012
NL16.05.2012
PL16.05.2012
RO16.05.2012
SE16.05.2012
SI16.05.2012
SK16.05.2012
IE30.07.2012
MC31.07.2012
NO16.08.2012
GR17.08.2012
ES27.08.2012
IS16.09.2012
PT17.09.2012
Former [2013/23]AT16.05.2012
BE16.05.2012
CY16.05.2012
CZ16.05.2012
DK16.05.2012
EE16.05.2012
FI16.05.2012
HR16.05.2012
IT16.05.2012
LT16.05.2012
LV16.05.2012
MK16.05.2012
NL16.05.2012
PL16.05.2012
RO16.05.2012
SE16.05.2012
SI16.05.2012
SK16.05.2012
MC31.07.2012
NO16.08.2012
GR17.08.2012
ES27.08.2012
IS16.09.2012
PT17.09.2012
Former [2013/12]AT16.05.2012
BE16.05.2012
CY16.05.2012
CZ16.05.2012
DK16.05.2012
EE16.05.2012
FI16.05.2012
HR16.05.2012
IT16.05.2012
LT16.05.2012
LV16.05.2012
MK16.05.2012
NL16.05.2012
PL16.05.2012
RO16.05.2012
SE16.05.2012
SI16.05.2012
SK16.05.2012
MC31.07.2012
NO16.08.2012
GR17.08.2012
IS16.09.2012
PT17.09.2012
Former [2013/11]AT16.05.2012
BE16.05.2012
CY16.05.2012
CZ16.05.2012
DK16.05.2012
EE16.05.2012
FI16.05.2012
HR16.05.2012
IT16.05.2012
LT16.05.2012
LV16.05.2012
NL16.05.2012
PL16.05.2012
RO16.05.2012
SE16.05.2012
SI16.05.2012
SK16.05.2012
MC31.07.2012
NO16.08.2012
GR17.08.2012
IS16.09.2012
PT17.09.2012
Former [2013/10]AT16.05.2012
BE16.05.2012
CY16.05.2012
CZ16.05.2012
DK16.05.2012
EE16.05.2012
FI16.05.2012
HR16.05.2012
LT16.05.2012
LV16.05.2012
NL16.05.2012
PL16.05.2012
RO16.05.2012
SE16.05.2012
SI16.05.2012
SK16.05.2012
NO16.08.2012
GR17.08.2012
IS16.09.2012
PT17.09.2012
Former [2013/09]AT16.05.2012
BE16.05.2012
CY16.05.2012
DK16.05.2012
EE16.05.2012
FI16.05.2012
HR16.05.2012
LT16.05.2012
LV16.05.2012
NL16.05.2012
PL16.05.2012
SE16.05.2012
SI16.05.2012
NO16.08.2012
GR17.08.2012
IS16.09.2012
PT17.09.2012
Former [2013/08]AT16.05.2012
BE16.05.2012
CY16.05.2012
DK16.05.2012
FI16.05.2012
HR16.05.2012
LT16.05.2012
LV16.05.2012
NL16.05.2012
PL16.05.2012
SE16.05.2012
SI16.05.2012
NO16.08.2012
GR17.08.2012
IS16.09.2012
PT17.09.2012
Former [2013/07]AT16.05.2012
BE16.05.2012
CY16.05.2012
FI16.05.2012
HR16.05.2012
LT16.05.2012
LV16.05.2012
PL16.05.2012
SE16.05.2012
SI16.05.2012
NO16.08.2012
GR17.08.2012
IS16.09.2012
PT17.09.2012
Former [2013/04]BE16.05.2012
CY16.05.2012
FI16.05.2012
HR16.05.2012
LT16.05.2012
LV16.05.2012
PL16.05.2012
SE16.05.2012
SI16.05.2012
NO16.08.2012
GR17.08.2012
IS16.09.2012
PT17.09.2012
Former [2013/01]CY16.05.2012
FI16.05.2012
HR16.05.2012
LT16.05.2012
LV16.05.2012
PL16.05.2012
SE16.05.2012
SI16.05.2012
NO16.08.2012
GR17.08.2012
IS16.09.2012
PT17.09.2012
Former [2012/51]CY16.05.2012
FI16.05.2012
HR16.05.2012
LT16.05.2012
LV16.05.2012
PL16.05.2012
SE16.05.2012
SI16.05.2012
NO16.08.2012
GR17.08.2012
IS16.09.2012
Former [2012/50]CY16.05.2012
FI16.05.2012
HR16.05.2012
LT16.05.2012
LV16.05.2012
PL16.05.2012
SE16.05.2012
NO16.08.2012
GR17.08.2012
IS16.09.2012
Former [2012/49]CY16.05.2012
FI16.05.2012
LT16.05.2012
PL16.05.2012
SE16.05.2012
NO16.08.2012
IS16.09.2012
Former [2012/48]FI16.05.2012
LT16.05.2012
SE16.05.2012
NO16.08.2012
Former [2012/47]LT16.05.2012
NO16.08.2012
Cited inInternational search[AD]  - AUMUELLER C ET AL, "FAULT ATTACKS ON RSA WITH CRT: CONCRETE RESULTS AND PRACTICAL COUNTERMEASURES", CRYPTOGRAPHIC HARDWARE AND EMBEDDED SYSTEMS. INTERNATIONALWORKSHOP, XX, XX, (20020813), pages 260 - 275, XP001160527 [AD] 1-11 * the whole document *
 [AD]  - CIET AND M JOYE M, "Practical fault countermeasures for Chinese Remaindering based RSA (Extended Abstract)", FAULT DIAGNOSIS AND TOLERANCE IN CRYPTOGRAPHY FDTC 05,, (20050902), pages 121 - 131, XP007906966 [AD] 1-11 * the whole document *
 [A]  - YEN S-M ET AL, "HARDWARE FAULT ATTACK ON RSA WITH CRT REVISITED", LECTURE NOTES IN COMPUTER SCIENCE, SPRINGER VERLAG, BERLIN; DE, (20021128), vol. 2587, ISSN 0302-9743, pages 374 - 388, XP001160549 [A] 1-11 * the whole document *

DOI:   http://dx.doi.org/10.1007/3-540-45675-9
 [A]  - CHONG HEE KIM ET AL, "Fault Attacks for CRT Based RSA: New Attacks, New Results, and New Countermeasures", INFORMATION SECURITY THEORY AND PRACTICES. SMART CARDS, MOBILE AND UBIQUITOUS COMPUTING SYSTEMS; [LECTURE NOTES IN COMPUTER SCIENCE;;LNCS], SPRINGER BERLIN HEIDELBERG, BERLIN, HEIDELBERG, (20070509), vol. 4462, ISBN 978-3-540-72353-0, pages 215 - 228, XP019058003 [A] 1-11 * the whole document *
by applicant   - DIFFIE, W., HELLMAN, M.E., "New directions in cryptography", IEEE TRANSACTIONS ON INFORMATION THEORY, (1976), vol. IT-22, no. 6, pages 644 - 654
    - EI GAMAL, T., "A public-key cryptosystem and a signature scheme based on discrete logarithms", CRYPTO, (1984), pages 10 - 18
    - SCHNORR, C.P., "Efficient signature generation by smart cards", JOURNAL OF CRYPTOLOGY, (1991), vol. 4, no. 3, pages 161 - 174
    - "National Institute of Standards and Technology: Digital Standard Signature", FEDERAL INFORMATION PROCESSING STANDARDS PUBLICATIONS, (1994), page 186
    - "A study on the proposed korean digital signature algorithm", LIM, LEE, ASIACRYPT: Advances in Cryptology - ASIACRYPT: International Conference on the Theory and Application of Cryptology, LNCS, SPRINGER-VERLAG, (1998), pages 175 - 186
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.