Visible to the public Biblio

Filters: Author is Ikezaki, Y.  [Clear All Filters]
Conference Paper
Yoshikawa, M., Ikezaki, Y., Nozaki, Y..  2018.  Implementation of Searchable Encryption System with Dedicated Hardware and Its Evaluation. 2018 9th IEEE Annual Ubiquitous Computing, Electronics Mobile Communication Conference (UEMCON). :218-221.
Recently, big data and artificial intelligence (AI) have been introduced into medical services. When personal information is stored in a shared database, that data must be encrypted, which, in turn, makes it difficult to extract only the necessary information. Searchable encryption has now been proposed to extract, or search, encrypted data without decrypting it. However, all previous studies regarding searchable encryption are software-based. This paper proposes a searchable encryption system embedded in dedicated hardware and evaluates its circuit size.
Nozaki, Y., Ikezaki, Y., Yoshikawa, M..  2016.  Tamper resistance of IoT devices against electromagnnetic analysis. 2016 IEEE International Meeting for Future of Electron Devices, Kansai (IMFEDK). :1–2.

Lightweight block ciphers, which are required for IoT devices, have attracted attention. Simeck, which is one of the most popular lightweight block ciphers, can be implemented on IoT devices in the smallest area. Regarding the hardware security, the threat of electromagnetic analysis has been reported. However, electromagnetic analysis of Simeck has not been reported. Therefore, this study proposes a dedicated electromagnetic analysis for a lightweight block cipher Simeck to ensure the safety of IoT devices in the future. To our knowledge, this is the first electromagnetic analysis for Simeck. Experiments using a FPGA prove the validity of the proposed method.