Eikoh CHIDA

A Secure Structured Multisignature Scheme Based on a Non-commutative Ring Homomorphism
Naoto YANAI Eikoh CHIDA Masahiro MAMBO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/06/01
Vol. E94-A  No. 6  pp. 1346-1355
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
multisignature scheme, structured multisignature scheme, homomorphic scheme, non-commutative ring homomorphism, random oracle model, 
 Summary | Full Text:PDF
A Note on the Relationships among Certified Discrete Log Cryptosystems
Eikoh CHIDA Toshiya ITOH Hiroki SHIZUYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/05/01
Vol. E86-A  No. 5  pp. 1198-1202
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
certified discrete logarithm problem, order, primitive root, probabilistic reducibility, deterministic reducibility, 
 Summary | Full Text:PDF
A Way of Making Trapdoor One-Way Functions Trapdoor No-Way
Eikoh CHIDA Motoji OHMORI Hiroki SHIZUYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/01/01
Vol. E84-A  No. 1  pp. 151-156
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
one-way function, no-way function, trapdoor, 
 Summary | Full Text:PDF
On the One-Way Algebraic Homomorphism
Eikoh CHIDA Takao NISHIZEKI Motoji OHMORI Hiroki SHIZUYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/01/25
Vol. E79-A  No. 1  pp. 54-60
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
one-way function, homomorphism, cryptography, 
 Summary | Full Text:PDF
One-Way Functions over Finite Near-Rings
Eikoh CHIDA Hiroki SHIZUYA Takao NISHIZEKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1995/01/25
Vol. E78-A  No. 1  pp. 4-10
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
one-way functions, ring homomorphism, cryptography, 
 Summary | Full Text:PDF