A paper got accepted (CODASPY19)

Our paper submitted to the 9th ACM Conference on Data and Application Security and Privacy (CODASPY 2019) is accepted for publication. This is a joint work with NTT Secure Platform Laboratories. Congrats, Yasumatsu-kun!

T. Yasumatsu, T. Watanabe, F. Kanei, E. Shioji, M. Akiyama, and T. Mori,
Understanding the Responsiveness of Mobile App Developers to Software Library Updates,”
Proceedings of the 9th ACM Conference on Data and Application Security and Privacy (CODASPY 2019), pp. xx–xx, March 2019. (acceptance rate: 28/119=23.5%) (to appear)


10月22日から25日まで長野県長野市で開催された情報処理学会・コンピュータセキュリティシンポジウム2018 (CSS2018) にて当研究室のメンバーが発表した下記4件の研究成果が表彰されました!(表彰全体のリストはこちら


  • 飯島涼,南翔汰,シュウインゴウ,竹久達也,高橋健志,及川靖広,森達哉, “超音波の分離放射による音声認識機器への攻撃:ユーザスタディ評価と対策技術の提案


  • 笹崎寿貴,シュウインゴウ,丸山誠太,森達哉, “SeQR: ショルダーハック耐性を持つQRコード生成方法
  • 鈴木宏彰,森達哉,米谷嘉朗,”IDNホモグラフ攻撃の大規模実態調査:傾向と対策
  • 森啓華,シュウインゴウ,森達哉,”言語圏ごとのパスワード生成・管理の傾向比較



Twitter official blog: Protecting user identity against Silhouette

The official Twitter blog has published an article that describes the security threat, named Silhouette, and how they have addressed the issue on their service.


We have published a paper that describes the threat and possible countermeasures against it. We hope the blog article will let other social web developers be aware of the threat and take appropriate actions against it. The study was conducted by Mr. Takuya Watanabe who is now working at NTT while studying at Waseda University as a PhD student. The study is a joint work with the NTT Secure Platform Laboratories, NTT corporation.

Paper: https://ieeexplore.ieee.org/document/8406608/

Preprint: https://arxiv.org/abs/1805.05085


The source of the image: Twitter official blog.

Best Student Paper Award@USENIX WOOT 2018

Our work on the Radio-Frequency Retroreflector Attack got the best student paper award of USENIX WOOT 2018! This is a joint work with Prof. Yuichi Hayashi@NAIST and Prof. Masahiro Kinugawa@NIT, Sendai.
Congratulations, Wakabayashi-kun and Maruyama-kun!

S. Wakabayashi, S. Maruyama, T. Mori, S. Goto, M. Kinugawa, and Y. Hayashi, “A Feasibility Study of Radio-frequency Retroreflector Attack,” Proceedings of the 12th USENIX Workshop on Offensive Technologies (WOOT 2018), August 2018. [PDF]

Mori-san presented a poster at SOUPS 2018

Mori-san presented our work on password analysis at the poster session of SOUPS 2018. We got a plenty of useful feedback from the audience.

K. Mori, Y. Zhou, and T. Mori, “Understanding the Propensity of Password Creation: Comparative Analysis of Three Language Spheres,” (poster presentation), Proc. of the 14th Symposium on Usable Privacy and Security (SOUPS 2018), August 2018