Countermeasure procedures in an electronic component...

Details Countermeasure procedures in an electronic component... Countermeasure procedures in an electronic component...

2007-01-09

2007-01-09

Vu, Kim (Department: 2135)

Cryptography

Particular algorithmic function encoding

Public key

C380S029000

Reexamination Certificate

active

09937396

ABSTRACT:
Elliptical curve based cryptographic algorithms are public key algorithms offering a shorter calculation time and smaller key sizes in comparison with RSA. In a smart card type environment, these algorithms are vulnerable to differential power analysis (DPA) attacks. The disclosed invention provides a countermeasure procedure enabling positive action to be taken against DPA-type attacks. The countermeasure does not reduce performance and is easy to use in a smartcard type component.

REFERENCES:
patent: 5497423 (1996-03-01), Miyaji
patent: 6141420 (2000-10-01), Vanstone et al.
patent: 6307935 (2001-10-01), Crandall et al.
Julio Lopez (Improved Algorithms for Elliptic Curve Arithmetic in GF (2n), 1998).
Jerome A. Solinas (“An Improved Algorithm for Arithmetic on a Family of Elliptic Curves” 1998).
Victor S. Miller (“Use of Elliptic Curves in cryptography” 1986).
Michael J. Wiener (“Faster Attacks on Elliptic Curve Cryptosystems”, 1998).
Eric Von York (Elliptic Curve over Finite Fields, 1992 p. 23).
Reyanld Lercier (“Finding good Random Elliptic curves for Cryptosystems defined over IF2n” 1997).
Alfred J. Menezes (“Elliptic Curve Public key Cryptosystems” 1993 p. 13, 15).
Menezes, A. J. et al, “Elliptic Curve Cryptosystems and Their Implementation”; Journal of Cryptology, New York, NY, vol. 6, No. 4, Sep. 1993, pp. 209-224.

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