Differential fault analysis hardening apparatus and evaluation m

Details Differential fault analysis hardening apparatus and evaluation m Differential fault analysis hardening apparatus and evaluation m

1998-01-27

2000-08-22

Swann, Tod R.

Cryptography

Equipment test or malfunction indication

380 1, 380 52, 380 59, 713200, 713194, H04K 100

Patent

active

061084190

ABSTRACT:
A method of evaluating a cryptosystem to determine whether the cryptosystem can withstand a fault analysis attack, the method includes the steps of providing a cryptosystem having an encrypting process to encrypt a plaintext into a ciphertext, introducing a fault into the encrypting process to generate a ciphertext with faults, and comparing the ciphertext with the ciphertext with faults in an attempt to recover a key of the cryptosystem.

REFERENCES:
Bihan and Shamir, "Research Announcement: A New Cryptanalytic Attack on DES," Bellcore, Oct. 1996.
An article entitled "Differential Fault Analysis: Identifying the Structue of Unknown Ciphers Sealred in Tamper-Proof Devices" by E. Biham and A. Shamir of Israel, Nov. 10, 1996. pp. 1-3.
An article entitled "Improved Differential Fault Analysis" by R. J. Anderson and M. G. Kuhn, pp. 1-6.
An article entitled "Research Announcement: A New Cryptanalytic Attack on DES" by E. Biham and A. Shamir of Israel, Bellcore, Sep., 1996.
An article entitled "On the Importance of Checking Computations", .COPYRGT. 1997 Bellcore, pp. 1-4.
An article entitled "The Next Stage of Differential Fault Analysis: How to Break Completely Unkown Cryptosystems", by E. Biham and A. Shamir of Israel, Oct. 30, 1996, pp. 1-2.

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