Satsuya OHATA


Simple Black-Box Adversarial Examples Generation with Very Few Queries
Yuya SENZAKI Satsuya OHATA Kanta MATSUURA 
Publication:   
Publication Date: 2020/02/01
Vol. E103-D  No. 2  pp. 212-221
Type of Manuscript:  Special Section PAPER (Special Section on Security, Privacy, Anonymity and Trust in Cyberspace Computing and Communications)
Category: Reliability and Security of Computer Systems
Keyword: 
adversarial examplesblack-box attackdeep learning
 Summary | Full Text:PDF(540.4KB)

Constant-Round Client-Aided Two-Server Secure Comparison Protocol and Its Applications
Hiraku MORITA Nuttapong ATTRAPADUNG Tadanori TERUYA Satsuya OHATA Koji NUIDA Goichiro HANAOKA 
Publication:   
Publication Date: 2020/01/01
Vol. E103-A  No. 1  pp. 21-32
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
multi-party computationclient-server modelclient-aided methodless-than comparisonconstant roundsGMW secret sharing
 Summary | Full Text:PDF(2MB)

More Constructions of Re-Splittable Threshold Public Key Encryption
Satsuya OHATA Takahiro MATSUDA Goichiro HANAOKA Kanta MATSUURA 
Publication:   
Publication Date: 2018/09/01
Vol. E101-A  No. 9  pp. 1473-1483
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
threshold public key encryptionkey re-splittability
 Summary | Full Text:PDF(1.3MB)