Walter, C.: Security constraints on the Oswald-Aigner exponentiation algorithm. Cryptology ePrint Archive: http://eprint.iacr.org/ (2003) Home/Search Document Details and Download
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Analysis of DPA Countermeasures Based on Randomizing the.. - Ebeid, Hasan (2003) (Correct)
....(also known as the sparse or NAF) representation of the integer k. We should mention here that these two countermeasures alone can not defeat variants of the SPA attack . In fact, the two versions of Oswald and Aigner s countermeasure were cryptanalyzed by Okeya and Sakurai [25] and by Walter [34] respectively. More recently, We should note here that, in the context of exponentiation based cryptosystems, using a representation of an integer with negative symbols may be more costly than the traditional square and multiply method. This is because, for negative symbols of the exponent, a ....
....2 . e t ) and that it also yields a sequence of doublings ending with an This specific transition is a flaw in the algorithm that was exploited by the cryptanalysis of the randomized version of Automaton 1 presented by Okeya and Sakurai in [25] and that of Automaton 2 presented by Walter in [34]. Though this intermediate point may not be computed at the same instant every time since the sequence of operations may be di#erent. Hence, DPA attack may not take advantage of this flaw. addition. Hence, for half of the possible values for e, the BSD representation generated for the t ....
C. D. Walter. Security constraints on the Oswald-Aigner exponentiation algorithm. Technical report, Cryptology ePrint Archive, 2003.
Hidden Markov Model Cryptanalysis - Karlof, Wagner (2003) (2 citations) (Correct)
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Walter, C.: Security constraints on the Oswald-Aigner exponentiation algorithm. Cryptology ePrint Archive: http://eprint.iacr.org/ (2003)
Hidden Markov Model Cryptanalysis - Karlof, Wagner (2003) (2 citations) (Correct)
No context found.
Walter, C.: Security constraints on the Oswald-Aigner exponentiation algorithm. Cryptology ePrint Archive: http://eprint.iacr.org/ (2003)
Hidden Markov Model Cryptanalysis - Karlof, Wagner (2003) (2 citations) (Correct)
No context found.
Walter, C.: Security constraints on the Oswald-Aigner exponentiation algorithm. Cryptology ePrint Archive: http://eprint.iacr.org/ (2003)
Hidden Markov Model Cryptanalysis - Karlof, Wagner (2003) (2 citations) (Correct)
No context found.
Walter, C.: Security constraints on the Oswald-Aigner exponentiation algorithm. Cryptology ePrint Archive: http://eprint.iacr.org/ (2003)
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