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1. (WO2018145190) ELLIPTIC CURVE CRYPTOGRAPHY SCHEME WITH SIMPLE SIDE-CHANNEL ATTACK COUNTERMEASURE

Pub. No.:    WO/2018/145190    International Application No.:    PCT/CA2017/050173
Publication Date: Fri Aug 17 01:59:59 CEST 2018 International Filing Date: Tue Feb 14 00:59:59 CET 2017
IPC: H04L 9/28
Applicants: INFOSEC GLOBAL INC.
Inventors: SOUKHAREV, Vladimir
HESS, Basil
Title: ELLIPTIC CURVE CRYPTOGRAPHY SCHEME WITH SIMPLE SIDE-CHANNEL ATTACK COUNTERMEASURE
Abstract:
There is provided an elliptic curve cryptographic scheme for permitting secure communications between two or more cryptographic correspondent devices, with a simple side-channel attack countermeasure. The cryptographic scheme includes: transforming a point to Jacobian projective coordinates; constant-time scalar multiplication of the point by a parameter; and transforming the resultant of the scalar multiplication to affine coordinates. The scalar multiplication including: performing iteratively to the value of the parameter either one of: doubling of the point and multiplying any two random field elements; or mixed addition of the point.