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Extract from the Register of European Patents

EP About this file: EP2154604

EP2154604 - Countermeasure securing exponentiation based cryptography [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  11.02.2011
Database last updated on 11.09.2024
Most recent event   Tooltip11.02.2011Application deemed to be withdrawnpublished on 16.03.2011  [2011/11]
Applicant(s)For all designated states
Gemalto SA
6, rue de la Verrerie
92190 Meudon / FR
[N/P]
Former [2010/07]For all designated states
Gemalto SA
6, rue de la Verrerie
92190 Meudon / FR
Inventor(s)01 / Vigilant, David
IP dept Axalto SA 6 rue de la Verrerie
92190, Meudon / FR
 [2010/07]
Application number, filing date08305453.606.08.2008
[2010/07]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP2154604
Date:17.02.2010
Language:EN
[2010/07]
Search report(s)(Supplementary) European search report - dispatched on:EP05.02.2009
ClassificationIPC:G06F7/72
[2010/07]
CPC:
G06F7/723 (EP,US)
Designated contracting states(deleted) [2010/42]
Former [2010/07]AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  HR,  HU,  IE,  IS,  IT,  LI,  LT,  LU,  LV,  MC,  MT,  NL,  NO,  PL,  PT,  RO,  SE,  SI,  SK,  TR 
TitleGerman:Gegenmassname zum Schutz von auf Potenzierung basierender Kryptographie[2010/07]
English:Countermeasure securing exponentiation based cryptography[2010/07]
French:Contre-mesure pour sécuriser la cryptographie à base d'exponentiation[2010/07]
Examination procedure18.08.2010Application deemed to be withdrawn, date of legal effect  [2011/11]
23.09.2010Despatch of communication that the application is deemed to be withdrawn, reason: examination fee not paid in time  [2011/11]
Fees paidRenewal fee
31.08.2010Renewal fee patent year 03
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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.
Documents cited: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 applicantUS5991415
    - BONEH, D.; DEMILLO, R.A.; LIPTON, R.J., "On the importance of checking cryptographic protocols for faults", LECTURE NOTES IN COMPUTER SCIENCE, (1997), vol. 1233, pages 37 - 51, XP008018071
    - JOYE, M.; LENSTRA, A.K.; QUISQUATER, J.J., "Chinese remaindering based cryptosystems in the presence of faults", JOURNAL OF CRYPTOLOGY: THE JOURNAL OF THE INTERNATIONAL ASSOCIATION FOR CRYPTOLOGIC RESEARCH, (1999), vol. 12, no. 4, doi:doi:10.1007/s001459900055, pages 241 - 245, XP008026864

DOI:   http://dx.doi.org/10.1007/s001459900055
    - SHAMIR, A, METHOD AND APPARATUS FOR PROTECTING PUBLIC KEY SCHEMES FROM TIMING AND FAULT ATTACKS
    - "Fault attacks on rsa with crt: Concrete results and practical countermeasures", AUMUIIER ET AL., Cryptographic Hardware and Embedded Systems ÔÇò CHES, LECTURE NOTES IN COMPUTER SCIENCE, (2002), vol. 2523, pages 260 - 275
    - BLOMER, J.; OTTO, M.; SEIFERT, J.P., "A new crt-rsa algorithm secure against bellcore attacks", CCS '03: PROCEEDINGS OF THE 10TH ACM CONFERENCE ON COMPUTER AND COMMUNICATIONS SECURITY, (2003), doi:doi:10.1145/948109.948151, pages 311 - 320, XP058194933

DOI:   http://dx.doi.org/10.1145/948109.948151
    - "Fault resistant rsa implementation", GIRAUD, C., 2nd Workshop on Fault Diagnosis and Tolerance in Cryptography - FDTC, (2005), pages 142 - 151
    - "How can we overcome both side channel analysis and fault attacks on rsa-crt", KIM, C.H.; QUISQUATER, J.J., FDTC, (2007), pages 21 - 29
    - "Gcd-free algorithms for computing modular inverses", JOYE, M.; PAILLIER, P., CHES, (2003), pages 243 - 253
    - "Rsa speedup with residue number system immune against hardware fault cryptanalysis", YEN, S.M. ET AL., ICISC '01: Proceedings of the 4th International Conference Seoul on Information Security and Cryptology, SPRINGER-VERLAG, (2002), pages 397 - 413
    - "The montgomery powering ladder", JOYE, M.; YEN, S., Cryptographic Hardware and Embedded Systems - CHES, (2002), vol. 2523, pages 291 - 302
    - DIFFIE, W.; HELLMAN, M.E., "New directions in cryptography", IEEE TRANSACTIONS ON INFORMATION THEORY, (1976), vol. IT-22, no. 6, doi:doi:10.1109/TIT.1976.1055638, pages 644 - 654, XP000565260

DOI:   http://dx.doi.org/10.1109/TIT.1976.1055638
    - 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, doi:doi:10.1007/BF00196725, pages 161 - 174, XP002006211

DOI:   http://dx.doi.org/10.1007/BF00196725
    - DSA (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, 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.