Masayuki FUKUMITSU


Black-Box Separations on Fiat-Shamir-Type Signatures in the Non-Programmable Random Oracle Model
Masayuki FUKUMITSU Shingo HASEGAWA 
Publication:   
Publication Date: 2018/01/01
Vol. E101-A  No. 1  pp. 77-87
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
Fiat-Shamir transformationnon-programmable random oracle modelmeta-reduction
 Summary | Full Text:PDF(1.2MB)

The RSA Group Is Adaptive Pseudo-Free under the RSA Assumption
Masayuki FUKUMITSU Shingo HASEGAWA Shuji ISOBE Hiroki SHIZUYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/01/01
Vol. E97-A  No. 1  pp. 200-214
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Public Key Based Cryptography
Keyword: 
pseudo-freenessadaptive pseudo-free groupsRSA assumption
 Summary | Full Text:PDF(606.3KB)