Akira NAGAI


Strongly Secure Identity-Based Key Exchange with Single Pairing Operation
Junichi TOMIDA Atsushi FUJIOKA Akira NAGAI Koutarou SUZUKI 
Publication:   
Publication Date: 2021/01/01
Vol. E104-A  No. 1  pp. 58-68
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
identity-based authenticated group key exchangeid-eCK securityasymmetric pairingexternal Diffie-Hellman for target group assumptionq-gap-bilinear collision attack assumptionHMQV constructionNAXOS technique
 Summary | Full Text:PDF(1.2MB)

Probabilistic Information Retrieval Method Based on Differential Latent Semantic Index Space
Liang CHEN Naoyuki TOKUDA Akira NAGAI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2001/07/01
Vol. E84-D  No. 7  pp. 910-914
Type of Manuscript:  LETTER
Category: Artificial Intelligence, Cognitive Science
Keyword: 
information retrievalcross language information retrievaldifferential document vectordifferential latent semantic index space
 Summary | Full Text:PDF(150.3KB)