Kenji YASUNAGA


Rational Proofs against Rational Verifiers
Keita INASAWA Kenji YASUNAGA 
Publication:   
Publication Date: 2017/11/01
Vol. E100-A  No. 11  pp. 2392-2397
Type of Manuscript:  PAPER
Category: Cryptography and Information Security
Keyword: 
rational proofdelegation of computationgame theoryrandom oracle model
 Summary | Full Text:PDF(690.9KB)

Public-Key Encryption with Lazy Parties
Kenji YASUNAGA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/02/01
Vol. E99-A  No. 2  pp. 590-600
Type of Manuscript:  PAPER
Category: Cryptography and Information Security
Keyword: 
public-key encryptionrational cryptographylazy party
 Summary | Full Text:PDF(401.9KB)

Post-Challenge Leakage Resilient Public-Key Cryptosystem in Split State Model
Eiichiro FUJISAKI Akinori KAWACHI Ryo NISHIMAKI Keisuke TANAKA Kenji YASUNAGA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/03/01
Vol. E98-A  No. 3  pp. 853-862
Type of Manuscript:  PAPER
Category: Cryptography and Information Security
Keyword: 
post-challenge (bounded) leakagesimultaneous secret-key and sender-randomness leakageCCA2 security for multiple messages
 Summary | Full Text:PDF(864.8KB)

Randomness Leakage in the KEM/DEM Framework
Hitoshi NAMIKI Keisuke TANAKA Kenji YASUNAGA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/01/01
Vol. E97-A  No. 1  pp. 191-199
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Public Key Based Cryptography
Keyword: 
leakage resilient cryptographypublic-key encryptionKEM/DEM frameworkhash proof system
 Summary | Full Text:PDF(739.8KB)

List Decoding of Reed-Muller Codes Based on a Generalized Plotkin Construction
Kenji YASUNAGA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/07/01
Vol. E96-A  No. 7  pp. 1662-1666
Type of Manuscript:  LETTER
Category: Coding Theory
Keyword: 
Reed-Muller codelist decodingPlotkin construction
 Summary | Full Text:PDF(99.7KB)

Leakage-Resilience of Stateless/Stateful Public-Key Encryption from Hash Proofs
Manh Ha NGUYEN Kenji YASUNAGA Keisuke TANAKA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/06/01
Vol. E96-A  No. 6  pp. 1100-1111
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
public key encryptionhash proof systemkey-leakagechosen-ciphertext attack
 Summary | Full Text:PDF(766.6KB)

Local Weight Distribution of the (256, 93) Third-Order Binary Reed-Muller Code
Kenji YASUNAGA Toru FUJIWARA Tadao KASAMI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/03/01
Vol. E90-A  No. 3  pp. 698-701
Type of Manuscript:  LETTER
Category: Coding Theory
Keyword: 
local weight distributionminimal codewordReed-Muller codebinary shift
 Summary | Full Text:PDF(86KB)