FR2786346B1 - Procede de traitement aleatoire de la cle dans un chiffrement a cle secrete - Google Patents

Procede de traitement aleatoire de la cle dans un chiffrement a cle secrete

Info

Publication number
FR2786346B1
FR2786346B1 FR9814768A FR9814768A FR2786346B1 FR 2786346 B1 FR2786346 B1 FR 2786346B1 FR 9814768 A FR9814768 A FR 9814768A FR 9814768 A FR9814768 A FR 9814768A FR 2786346 B1 FR2786346 B1 FR 2786346B1
Authority
FR
France
Prior art keywords
processing
random
secret key
encryption
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.)
Expired - Lifetime
Application number
FR9814768A
Other languages
English (en)
Other versions
FR2786346A1 (fr
Inventor
Jean Bernard Fischer
Francoise Levy-Dit-Vehel
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.)
Idemia France SAS
Original Assignee
De la Rue Cartes et Systemes SAS
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 De la Rue Cartes et Systemes SAS filed Critical De la Rue Cartes et Systemes SAS
Priority to FR9814768A priority Critical patent/FR2786346B1/fr
Publication of FR2786346A1 publication Critical patent/FR2786346A1/fr
Application granted granted Critical
Publication of FR2786346B1 publication Critical patent/FR2786346B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04L9/002—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)
FR9814768A 1998-11-24 1998-11-24 Procede de traitement aleatoire de la cle dans un chiffrement a cle secrete Expired - Lifetime FR2786346B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9814768A FR2786346B1 (fr) 1998-11-24 1998-11-24 Procede de traitement aleatoire de la cle dans un chiffrement a cle secrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9814768A FR2786346B1 (fr) 1998-11-24 1998-11-24 Procede de traitement aleatoire de la cle dans un chiffrement a cle secrete

Publications (2)

Publication Number Publication Date
FR2786346A1 FR2786346A1 (fr) 2000-05-26
FR2786346B1 true FR2786346B1 (fr) 2001-02-09

Family

ID=9533109

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9814768A Expired - Lifetime FR2786346B1 (fr) 1998-11-24 1998-11-24 Procede de traitement aleatoire de la cle dans un chiffrement a cle secrete

Country Status (1)

Country Link
FR (1) FR2786346B1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2650458B1 (fr) * 1989-07-25 1991-10-11 Trt Telecom Radio Electr Procede de traitement d'une permutation irreguliere de donnees protegees par chiffrement
US5425103A (en) * 1994-03-14 1995-06-13 Shaw; William Y. Variable-key cryptography system
US5432848A (en) * 1994-04-15 1995-07-11 International Business Machines Corporation DES encryption and decryption unit with error checking

Also Published As

Publication number Publication date
FR2786346A1 (fr) 2000-05-26

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Legal Events

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PLFP Fee payment

Year of fee payment: 18

PLFP Fee payment

Year of fee payment: 19

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Effective date: 20200218

CD Change of name or company name

Owner name: IDEMIA FRANCE, FR

Effective date: 20200218

CJ Change in legal form

Effective date: 20200218