Differential Power Analysis (DPA)

This repository contains the code for the Hardware Security course taught at KTH Royal Institue of Technology.

Side Channel Attack: Differential Power Analysis (DPA) on AES encryption algorithm to deduce secret keys

DPA can be performed as follows:

• Choose an intermediate value that depends on data and key v_{i, k} = f(d_i, k)
• Measure power traces t_{i, j} while encrypting data d_i
• Build a matrix of hypothetical intermediate values inside the cipher for all possible keys and traces v_{i, k}
• Using a power model, compute the matrix of hypothetical power consumption for all keys and traces h_{i, k}
• Statistically evaluate which key hypothesis best matches the measured power at each individual time