Keiichi IWAMURA

FOREWORD
Keiichi IWAMURA 
Publication:   
Publication Date: 2020/01/01
Vol. E103-D  No. 1  pp. 1-1
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(65.6KB)
FOREWORD
Keiichi IWAMURA 
Publication:   
Publication Date: 2019/01/01
Vol. E102-D  No. 1  pp. 1-1
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(57.4KB)
Provably Secure Structured Signature Schemes with Tighter Reductions
Naoto YANAI Tomoya IWASAKI Masaki INAMURA Keiichi IWAMURA 
Publication:   
Publication Date: 2017/09/01
Vol. E100-A  No. 9  pp. 1870-1881
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
structured signatures, identity-based structured signatures, provable security, CDH problem, random oracle model, tight reduction, 
 Summary | Full Text:PDF(1008.4KB)
Information Hiding and Its Criteria for Evaluation
Keiichi IWAMURA Masaki KAWAMURA Minoru KURIBAYASHI Motoi IWATA Hyunho KANG Seiichi GOHSHI Akira NISHIMURA 
Publication:   
Publication Date: 2017/01/01
Vol. E100-D  No. 1  pp. 2-12
Type of Manuscript:  INVITED PAPER (Special Section on Enriched Multimedia —New Technology Trends in Creation, Utilization and Protection of Multimedia Information—)
Category: 
Keyword: 
information hiding, evaluation criteria, digital watermarking, still image, video, audio, IHC committee, 
 Summary | Full Text:PDF(1.3MB)