Yoshiaki OKAMOTO


Generic Construction of Strongly Secure Timed-Release Public-Key Encryption
Atsushi FUJIOKA Yoshiaki OKAMOTO Taiichi SAITO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/01/01
Vol. E96-A  No. 1  pp. 76-91
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Public Key Based Protocols
Keyword: 
timed-release public-key encryptionpublic-key encryptionidentity-based encryptionrandom oracle model.
 Summary | Full Text:PDF(345.6KB)

Security of Sequential Multiple Encryption
Atsushi FUJIOKA Yoshiaki OKAMOTO Taiichi SAITO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/01/01
Vol. E95-A  No. 1  pp. 57-69
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Public Key Cryptography
Keyword: 
multiple encryptionsequential constructionrandom oracle modelFujisaki-Okamoto conversion
 Summary | Full Text:PDF(413.9KB)