A Method for ECC Algorithm Selected Plaintext Side Channel Energy Analysis in P Domain
A technology of energy analysis and algorithm selection, applied to key distribution, which can solve the problems of indistinguishable point addition and point multiplication operations, and the inability of attackers to obtain information about key bit sequences.
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[0145] The present invention will be further described below in conjunction with embodiment:
[0146] The present invention takes energy analysis under affine coordinates and Jacobi-affine coordinates as an example, and energy analysis under other coordinates is consistent with them.
[0147] Energy Analysis of Selected Plaintext Implemented by ECC Software in Affine Coordinate System
[0148] Let k=7 in the kP operation, the sequence of the whole operation is doubling-dot-adding-doubling-dot-adding. Arbitrarily choose P(x, y) ∈ {(x, y)|(x, y) ∈ E(F p ), 0p ), p>y>p / 2}, collect 1200 power consumption and energy trace sets of the entire operation (namely W′).
[0149] After performing signal processing on the energy traces, the two sets of energy trace sets are respectively averaged to obtain two energy trace vectors AVE and AVE′. Figure 4 For the overall profile of the average vector, it is impossible to distinguish between point addition and point multiplying...
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