DPA: Differential power analysis (DPA) attacks are based on analysis of the correlation between the electricity usage of a chip in a smart card and the encryption key it contains.
DPA attacks measure power levels at different parts of the chip and apply statistical analysis to overcome traditional countermeasures, such as added noise, applied to obscure individual data bits. Measuring the power usage identifies what kind of computational operations are being done by a device. An analysis can reveal several bits of the cryptokey at a time, with the process being repeated to eventually produce the entire key.
DPA attacks are dangerous because they circumvent the hardware and software security that vendors have put in place. Because such attacks are non-invasive, it’s possible for an intruder to compromise an embedded system without leaving a trace.
ChaoSecure technology deters side channel attacks at the source and contributes a superior layer of security to the semiconductor circuit compared to today’s existing add-on solutions.