BRPI0515587A - método de segurança de um tratamento criptográfico contra ataques fìsicos - Google Patents

método de segurança de um tratamento criptográfico contra ataques fìsicos

Info

Publication number
BRPI0515587A
BRPI0515587A BRPI0515587-8A BRPI0515587A BRPI0515587A BR PI0515587 A BRPI0515587 A BR PI0515587A BR PI0515587 A BRPI0515587 A BR PI0515587A BR PI0515587 A BRPI0515587 A BR PI0515587A
Authority
BR
Brazil
Prior art keywords
against physical
physical attacks
security method
cryptographic handling
cryptographic
Prior art date
Application number
BRPI0515587-8A
Other languages
English (en)
Inventor
Patrice Hameau
Cedric Mesnil
Renaud Marlet
Original Assignee
Trusted Logic
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 Trusted Logic filed Critical Trusted Logic
Publication of BRPI0515587A publication Critical patent/BRPI0515587A/pt

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
    • H04L9/003—Countermeasures against attacks on cryptographic mechanisms for power analysis, e.g. differential power analysis [DPA] or simple power analysis [SPA]
    • 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
    • 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
    • H04L2209/12—Details relating to cryptographic hardware or logic circuitry
    • H04L2209/125—Parallelization or pipelining, e.g. for accelerating processing of cryptographic operations

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)

Abstract

"MéTODO DE SEGURANçA DE UM TRATAMENTO CRIPTOGRáFICO CONTRA ATAQUES FìSICOS". No processo de segurança de um tratamento criptográfico contra ataques físicos, de acordo com a invenção, o total ou parte desse tratamento criptográfico sendo reiterado (a) várias vezes: uma ou várias vezes com base em dados corretos, as outras vezes em dados incorretos com vistas a pegar um invasor, a escolha das iterações feitas com base em dados corretos ou incorretos sendo feita de maneira aleatória, e as iterações feitas com base em dados incorretos sendo ignoradas no resultado final do tratamento.
BRPI0515587-8A 2004-09-22 2005-09-01 método de segurança de um tratamento criptográfico contra ataques fìsicos BRPI0515587A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0410010A FR2875657B1 (fr) 2004-09-22 2004-09-22 Procede de securisation de traitements cryptographiques par le biais de leurres.
PCT/FR2005/002193 WO2006032746A1 (fr) 2004-09-22 2005-09-01 Procede de securisation de traitements cryptographiques par le biais de leurres

Publications (1)

Publication Number Publication Date
BRPI0515587A true BRPI0515587A (pt) 2008-07-29

Family

ID=34950093

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0515587-8A BRPI0515587A (pt) 2004-09-22 2005-09-01 método de segurança de um tratamento criptográfico contra ataques fìsicos

Country Status (4)

Country Link
EP (1) EP1792435A1 (pt)
BR (1) BRPI0515587A (pt)
FR (1) FR2875657B1 (pt)
WO (1) WO2006032746A1 (pt)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2790347B1 (fr) * 1999-02-25 2001-10-05 St Microelectronics Sa Procede de securisation d'un enchainement d'operations realisees par un circuit electronique dans le cadre de l'execution d'un algorithme
CA2298990A1 (en) * 2000-02-18 2001-08-18 Cloakware Corporation Method and system for resistance to power analysis
FR2825542B1 (fr) * 2001-05-31 2003-08-29 Sagem Procede fonde sur un algorithme de chiffrage par bloc a repetition de rondes et dispositif le mettant en oeuvre
FR2838262B1 (fr) * 2002-04-08 2004-07-30 Oberthur Card Syst Sa Procede de securisation d'une electronique a acces crypte
FR2844409B1 (fr) * 2002-09-05 2004-12-24 Sagem Protection d'une cle secrete pour algorithme d'authentification dans un radiotelephone mobile
GB2403572B (en) * 2002-12-12 2005-11-09 Advanced Risc Mach Ltd Instruction timing control within a data processing system
EP1601132B1 (en) * 2004-05-24 2006-11-15 Research In Motion Limited Table Masking for Resistance to Power Analysis Attacks

Also Published As

Publication number Publication date
FR2875657A1 (fr) 2006-03-24
FR2875657B1 (fr) 2006-12-15
WO2006032746A1 (fr) 2006-03-30
EP1792435A1 (fr) 2007-06-06

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Legal Events

Date Code Title Description
B25G Requested change of headquarter approved

Owner name: TRUSTED LOGIC (FR)

Free format text: SEDE ALTERADA CONFORME SOLICITADO NA PETICAO NO 020110030457/RJ DE 30/03/2011.

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B15K Others concerning applications: alteration of classification

Ipc: H04L 9/00 (2006.01), H04L 9/06 (2006.01)

B09B Patent application refused [chapter 9.2 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL