ATE525825T1 - Schutz für einen kryptografischen algorithmus - Google Patents

Schutz für einen kryptografischen algorithmus

Info

Publication number
ATE525825T1
ATE525825T1 AT07730938T AT07730938T ATE525825T1 AT E525825 T1 ATE525825 T1 AT E525825T1 AT 07730938 T AT07730938 T AT 07730938T AT 07730938 T AT07730938 T AT 07730938T AT E525825 T1 ATE525825 T1 AT E525825T1
Authority
AT
Austria
Prior art keywords
data block
value
operational system
determined
intermediate data
Prior art date
Application number
AT07730938T
Other languages
English (en)
Inventor
Herve Chabanne
Julien Bringer
Emmanuelle Dottax
Original Assignee
Sagem Defense Securite
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sagem Defense Securite filed Critical Sagem Defense Securite
Application granted granted Critical
Publication of ATE525825T1 publication Critical patent/ATE525825T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/002—Countermeasures against attacks on cryptographic mechanisms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0631—Substitution permutation network [SPN], i.e. cipher composed of a number of stages or rounds each involving linear and nonlinear transformations, e.g. AES algorithms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/16—Obfuscation or hiding, e.g. involving white box

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)
  • Amplifiers (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Peptides Or Proteins (AREA)
AT07730938T 2006-02-08 2007-02-07 Schutz für einen kryptografischen algorithmus ATE525825T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0601135A FR2897216B1 (fr) 2006-02-08 2006-02-08 Protection d'un algorithme cryptographique
PCT/FR2007/000222 WO2007090961A1 (fr) 2006-02-08 2007-02-07 Protection d'un algorithme cryptographique

Publications (1)

Publication Number Publication Date
ATE525825T1 true ATE525825T1 (de) 2011-10-15

Family

ID=37620240

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07730938T ATE525825T1 (de) 2006-02-08 2007-02-07 Schutz für einen kryptografischen algorithmus

Country Status (6)

Country Link
EP (1) EP1982461B1 (de)
AT (1) ATE525825T1 (de)
AU (1) AU2007213585B2 (de)
ES (1) ES2373334T3 (de)
FR (1) FR2897216B1 (de)
WO (1) WO2007090961A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2966953B1 (fr) * 2010-11-02 2015-08-28 St Microelectronics Rousset Procede de contremesure cryptographique par derivation d'une donnee secrete
DE102014016548A1 (de) * 2014-11-10 2016-05-12 Giesecke & Devrient Gmbh Verfahren zum Testen und zum Härten von Softwareapplikationen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2776445A1 (fr) * 1998-03-17 1999-09-24 Schlumberger Ind Sa Procede de securisation de donnees mettant en oeuvre un algorithme cryptographique
WO1999063696A1 (en) * 1998-06-03 1999-12-09 Cryptography Research, Inc. Using unpredictable information to minimize leakage from smartcards and other cryptosystems
GB2345229B (en) * 1998-12-23 2003-12-03 Motorola Ltd Method for encrypting data

Also Published As

Publication number Publication date
FR2897216A1 (fr) 2007-08-10
AU2007213585B2 (en) 2011-02-03
EP1982461A1 (de) 2008-10-22
AU2007213585A1 (en) 2007-08-16
EP1982461B1 (de) 2011-09-21
WO2007090961A1 (fr) 2007-08-16
FR2897216B1 (fr) 2008-05-02
ES2373334T3 (es) 2012-02-02

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties