HOMOGENOUS ATOMIC PSTTERN FOR DOUBLE, ADD, AND SUBTRACT OPERATIONSNFOR DIGITAL AUTHENTICATION USING ELLIPTIC CURVE CRYPTOGRAPHY

摘要

A method of performing finite field addition and doubling operations in an elliptic curve cryptography (ECC) authentication scheme as a countermeasure to side-channel attack. The addition and doubling operations are executed using atomic patterns that involve the same sequence and number of operation types, so that the noise consumption and electromagnetic emanation profile of circuitry performing the operations is identical regardless of operation. A subtraction operation using such an atomic pattern is also disclosed.