Hiroshi DOI


A Fully Secure Spatial Encryption Scheme
Daisuke MORIYAMA Hiroshi DOI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/01/01
Vol. E94-A  No. 1  pp. 28-35
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Public Key Cryptography
Keyword: 
identity based encryptionspatial encryptionfull security
 Summary | Full Text:PDF(376.9KB)

Secure and Efficient IBE-PKE Proxy Re-Encryption
Takeo MIZUNO Hiroshi DOI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/01/01
Vol. E94-A  No. 1  pp. 36-44
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Public Key Cryptography
Keyword: 
proxy re-encryptionpublic key encryptionidentity-based encryptionbilinear maps
 Summary | Full Text:PDF(385.4KB)

An ID-SP-M4M Scheme and Its Security Analysis
Lihua WANG Eiji OKAMOTO Ying MIAO Takeshi OKAMOTO Hiroshi DOI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/01/01
Vol. E90-A  No. 1  pp. 91-100
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Signatures
Keyword: 
series-parallel multisignaturepairingID-basedBDH assumption
 Summary | Full Text:PDF(316.9KB)

An Electronic Voting Protocol Preserving Voter's Privacy
Hiroshi YAMAGUCHI Atsushi KITAZAWA Hiroshi DOI Kaoru KUROSAWA Shigeo TSUJII 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2003/09/01
Vol. E86-D  No. 9  pp. 1868-1878
Type of Manuscript:  PAPER
Category: Applications of Information Security Techniques
Keyword: 
electronic votingprivacyprotocolcryptographic system
 Summary | Full Text:PDF(394.6KB)