Flexible licensing options are available, including no-cost licenses for academic research. Countermeasures to SPA and DPA are covered by our patents, and include a broad range of hardware and software-based techniques:
Leakage reduction: techniques to make the set or sequence of operations independent of the key as well as hardware and software balancing techniques to reduce variation in the power consumption for different data.
Noise introduction: techniques for adding different types of noise into the power consumption measurements available to the attacker.
Obfuscation: by keeping algorithms secret, the attacker is forced to perform reverse engineering along with power analysis. While we do not recommend this countermeasure, it is better than having no countermeasure at all.
Incorporating randomness: includes techniques for randomizing the data manipulated by the device in a way that still produces the correct result and encompasses techniques such as the masking or blinding of data and keys.
Protocol level countermeasures: are applicable when there is flexibility to modify cryptographic protocols used by the device. Protocols are modified so that secrets can be continually refreshed and updated during the lifetime of the device, protecting them from leak exposure.