Shota YAMADA


Partially Wildcarded Ciphertext-Policy Attribute-Based Encryption and Its Performance Evaluation
Go OHTAKE Kazuto OGAWA Goichiro HANAOKA Shota YAMADA Kohei KASAMATSU Takashi YAMAKAWA Hideki IMAI 
Publication:   
Publication Date: 2017/09/01
Vol. E100-A  No. 9  pp. 1846-1856
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
attribute-based encryptionciphertext policywildcard
 Summary | Full Text:PDF(1.8MB)

New Security Proof for the Boneh-Boyen IBE: Tight Reduction in Unbounded Multi-Challenge Security
Nuttapong ATTRAPADUNG Goichiro HANAOKA Shota YAMADA 
Publication:   
Publication Date: 2017/09/01
Vol. E100-A  No. 9  pp. 1882-1890
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
Boneh-Boyen identity-based encryptiontight security reductionmulti-challenge security
 Summary | Full Text:PDF(1.1MB)

Performance Evaluation of TCP/IP over SCTP/IP Parallel Networking with Parallel Route Transmission
Shota YAMADA Daisuke ISHII Satoru OKAMOTO Naoaki YAMANAKA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/08/01
Vol. E94-B  No. 8  pp. 2394-2396
Type of Manuscript:  LETTER
Category: Network
Keyword: 
SCTPparallel data transmissioncapsuling
 Summary | Full Text:PDF(414.4KB)

Public Key Encryption Schemes from the (B)CDH Assumption with Better Efficiency
Shota YAMADA Yutaka KAWAI Goichiro HANAOKA Noboru KUNIHIRO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/11/01
Vol. E93-A  No. 11  pp. 1984-1993
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Cryptography and Information Security
Keyword: 
public key encryptionchosen-ciphertext securitycomputational Diffie-Hellman assumptionbilinear computational Diffie-Hellman assumption
 Summary | Full Text:PDF(397.8KB)