CONFIGURING A DEVICE BASED ON A DPA COUNTERMEASURE

摘要

Input signals may be received. Furthermore, a control signal controlling the implementation of a Differential Power Analysis (DPA) countermeasure may be received. One of the input signals may be transmitted as an output signal based on the control signal. A cryptographic operation may be performed based on the first output signal that is transmitted based on the control signal.

主权项

1. A method comprising:
receiving a plurality of input signals; receiving a control signal controlling implementation of a Differential Power Analysis (DPA) countermeasure; in response to the control signal indicating to implement the DPA countermeasure, performing a cryptographic operation with a first cryptographic component and a second cryptographic component based on switching between an input signal from the plurality of input signals and a second input signal, from the plurality of input signals, that is associated with the DPA countermeasure; and in response to the control signal indicating to not implement the DPA countermeasure, performing a first cryptographic operation with the first cryptographic component without the second input signal associated with the DPA countermeasure and a second cryptographic operation with the second cryptographic component without the second input signal associated with the DPA countermeasure.