Masked gate logic for resistance to power analysis

A circuit comprising:

• Boolean logic circuitry to receive cipher input values and masking values, wherein the Boolean logic circuitry outputs masked data values;
• a mask generator circuit that determines a mask share, wherein a first portion of the mask share comprises a first number of zero-values and a second number of one-values, and a second portion of the mask share comprises the first number of one-values and the second number of zero-values;
• and
• masked gate logic circuitry coupled to the mask generator circuit and the Boolean logic circuitry, the masked gate logic circuitry comprising a first portion and a second portion,
• wherein the first portion of the masked gate logic circuitry:
• receives the masked data values from the Boolean logic circuitry;
• receives the first portion of the mask share from the mask generator circuit;
• and provides a first output;
• and
• wherein the second portion of the masked gate logic circuitry:
• receives the masked data values from the Boolean logic circuitry;
• receives the second portion of the mask share from the mask generator circuit;
• and
• provides a second output.

A system comprising:

• an integrated circuit comprising a set of propagation paths and a cryptographic circuit to perform a cryptographic operation;
• and
• a power delivery network coupled to the integrated circuit, the power delivery network to delivery power to the integrated circuit, wherein the cryptographic circuit comprises:
• masked gate logic circuitry that outputs output signals on each of the set of propagation paths with equal probability during the cryptographic operation to mask secret data from being detected via power analysis of the power delivery network;
• and
• additional logic circuitry coupled to the masked gate logic circuitry, wherein the additional logic circuitry is to determine a final output based on a first output and a second output of the output signals, wherein the final output is independent of secret data that is masked in the masked data values.