AU2002220805A1 - Counter-measure method in an electronic component using a secret key encryption algorithm - Google Patents

Counter-measure method in an electronic component using a secret key encryption algorithm

Info

Publication number
AU2002220805A1
AU2002220805A1 AU2002220805A AU2080502A AU2002220805A1 AU 2002220805 A1 AU2002220805 A1 AU 2002220805A1 AU 2002220805 A AU2002220805 A AU 2002220805A AU 2080502 A AU2080502 A AU 2080502A AU 2002220805 A1 AU2002220805 A1 AU 2002220805A1
Authority
AU
Australia
Prior art keywords
secret key
counter
electronic component
encryption algorithm
key encryption
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2002220805A
Inventor
Jean-Sebastien Coron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gemplus SA
Original Assignee
Gemplus Card International SA
Gemplus SA
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 Gemplus Card International SA, Gemplus SA filed Critical Gemplus Card International SA
Publication of AU2002220805A1 publication Critical patent/AU2002220805A1/en
Abandoned legal-status Critical Current

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
    • H04L9/06—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
    • H04L9/0625—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation with splitting of the data block into left and right halves, e.g. Feistel based algorithms, DES, FEAL, IDEA or KASUMI
    • 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
    • H04L9/003—Countermeasures against attacks on cryptographic mechanisms for power analysis, e.g. differential power analysis [DPA] or simple power analysis [SPA]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)
  • Credit Cards Or The Like (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Collating Specific Patterns (AREA)

Abstract

The invention concerns a method for efficiently shifting from a boolean data representation to an arithmetic data representation and inversely. Said representations are frequently used in the context of a secret key algorithm which must be protected against differential power analysis. The invention is particularly designed to be used in an electronic portable object such as a smart card.
AU2002220805A 2000-12-19 2001-11-20 Counter-measure method in an electronic component using a secret key encryption algorithm Abandoned AU2002220805A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0016579 2000-12-19
FR0016579A FR2818472B1 (en) 2000-12-19 2000-12-19 COUNTER-MEASUREMENT METHOD IN AN ELECTRONIC COMPONENT USING A SECRET KEY CRYPTOGRAPHY ALGORITHM
PCT/FR2001/003646 WO2002051064A1 (en) 2000-12-19 2001-11-20 Counter-measure method in an electronic component using a secret key encryption algorithm

Publications (1)

Publication Number Publication Date
AU2002220805A1 true AU2002220805A1 (en) 2002-07-01

Family

ID=8857863

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002220805A Abandoned AU2002220805A1 (en) 2000-12-19 2001-11-20 Counter-measure method in an electronic component using a secret key encryption algorithm

Country Status (7)

Country Link
EP (1) EP1348275B1 (en)
AT (1) ATE445941T1 (en)
AU (1) AU2002220805A1 (en)
DE (1) DE60140210D1 (en)
ES (1) ES2335082T3 (en)
FR (1) FR2818472B1 (en)
WO (1) WO2002051064A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10341096A1 (en) * 2003-09-05 2005-03-31 Giesecke & Devrient Gmbh Transition between masked representations of a value in cryptographic calculations
DE102004052196B4 (en) * 2004-10-27 2017-04-06 Giesecke & Devrient Gmbh Anti-spyware execution of operations using a mask-assisting arithmetic unit
EP2634953A1 (en) 2012-03-02 2013-09-04 Gemalto SA Countermeasure method against side channel analysis for cryptographic algorithms using boolean operations and arithmetic operations

Also Published As

Publication number Publication date
FR2818472B1 (en) 2003-02-14
ES2335082T3 (en) 2010-03-22
FR2818472A1 (en) 2002-06-21
EP1348275A1 (en) 2003-10-01
DE60140210D1 (en) 2009-11-26
ATE445941T1 (en) 2009-10-15
WO2002051064A1 (en) 2002-06-27
EP1348275B1 (en) 2009-10-14

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