Scrambling of a calculation performed according to an...

Details Scrambling of a calculation performed according to an... Scrambling of a calculation performed according to an...

2011-07-05

2011-07-05

Zand, Kambiz (Department: 2434)

Cryptography

Particular algorithmic function encoding

Public key

Reexamination Certificate

active

07974408

ABSTRACT:
A method and a circuit for scrambling an RSA-CRT algorithm calculation by an electronic circuit, in which a result is obtained from two modular exponentiation calculations, each providing a partial result, and from a recombination step, and in which a first step adds a digital quantity to at least one first partial result before said recombination step; and a second step cancels the effects of this quantity after the recombination step.

REFERENCES:
patent: 2003/0044014 (2003-03-01), Liardet et al.
patent: 2 875 355 (2006-03-01), None
French Search Report from French Patent Application 06/53523, filed Aug. 31, 2006.

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