Kaisei KAJITA


Privacy-Preserving System for Enriched-Integrated Service
Kaisei KAJITA Go OHTAKE Kazuto OGAWA 
Publication:   
Publication Date: 2021/05/01
Vol. E104-D  No. 5  pp. 647-658
Type of Manuscript:  Special Section PAPER (Special Section on the Architectures, Protocols, and Applications for the Future Internet)
Category: 
Keyword: 
privacy preservingattribute-based keyword searchintegrated broadcast-broadband service
 Summary | Full Text:PDF

A Constant-Size Signature Scheme with a Tighter Reduction from the CDH Assumption
Kaisei KAJITA Kazuto OGAWA Eiichiro FUJISAKI 
Publication:   
Publication Date: 2020/01/01
Vol. E103-A  No. 1  pp. 141-149
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
digital signatureCDH assumptiontrapdoor commitmenttight security reduction
 Summary | Full Text:PDF