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IEICE Trans

Junichiro HAYATA


Multi-Query Verifiable PIR and Its Application
Ryuya HAYASHI Junichiro HAYATA Keisuke HARA Kenta NOMURA Masaki KAMIZONO Goichiro HANAOKA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2025/09/01
Vol. E108-A  No. 9  pp. 1114-1127
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
PIRselective failuresverifiable PIRSNARK
 Summary | Full Text:PDF

Equivalence between Non-Malleability against Replayable CCA and Other RCCA-Security Notions
Junichiro HAYATA Fuyuki KITAGAWA Yusuke SAKAI Goichiro HANAOKA Kanta MATSUURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2021/01/01
Vol. E104-A  No. 1  pp. 89-103
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
public-key encryptionnon-malleabilityreplayable chosen ciphertext security
 Summary | Full Text:PDF

Generic Construction of Adaptively Secure Anonymous Key-Policy Attribute-Based Encryption from Public-Key Searchable Encryption
Junichiro HAYATA Masahito ISHIZAKA Yusuke SAKAI Goichiro HANAOKA Kanta MATSUURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2020/01/01
Vol. E103-A  No. 1  pp. 107-113
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
public-key searchable encryptionattribute-based encryption
 Summary | Full Text:PDF