Kazuma OHARA


Multi-Party Computation for Modular Exponentiation Based on Replicated Secret Sharing
Kazuma OHARA Yohei WATANABE Mitsugu IWAMOTO Kazuo OHTA 
Publication:   
Publication Date: 2019/09/01
Vol. E102-A  No. 9  pp. 1079-1090
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: Cryptography and Information Security
Keyword: 
multi-party computationmodular exponentiationreplicated secret sharing
 Summary | Full Text:PDF(1.3MB)

Shortening the Libert-Peters-Yung Revocable Group Signature Scheme by Using the Random Oracle Methodology
Kazuma OHARA Keita EMURA Goichiro HANAOKA Ai ISHIDA Kazuo OHTA Yusuke SAKAI 
Publication:   
Publication Date: 2019/09/01
Vol. E102-A  No. 9  pp. 1101-1117
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: Cryptography and Information Security
Keyword: 
group signaturerevocationscalability
 Summary | Full Text:PDF(1.8MB)