Side-Channel Attack Standard Evaluation Board SASEBO-W for Smartcard Testing

Side-channel Attack Standard Evaluation BOards (SASEBOs) were developed as uniform evaluation platforms for research purposes. Cryptographic hardware, and control circuits for side-channel experimentation were also developed, and these platforms have been distributed to the government, the industry and academic research labs in order to facilitate research and development directed toward the establishment of an international standard for side-channel attacks. With standardization, testing environments are required to support security evaluation of side-channel attacks. In order to accelerate the adoption of the standard, we developed a new evaluation board named SASEBO-W for testing and evaluating smartcards, which are the most widespread cryptographic modules. The board supports ISO/IEC 7816-3 electrical interface smartcards and provides finegrained control and trigger features with a control circuit implemented on an FPGA. A smartcard OS and cryptographic software for the ATMega 163 card were also developed. In this paper, the features of a variety of SASEBOs and side-channel attack tools are explained, and the analysis results for the power consumption and the electromagnetic radiation of a smartcard as obtained experimentally with SASEBO-W are presented.