SeongHan SHIN


How to Preserve User Anonymity in Password-Based Anonymous Authentication Scheme
SeongHan SHIN Kazukuni KOBARA 
Publication:   
Publication Date: 2018/03/01
Vol. E101-D  No. 3  pp. 803-807
Type of Manuscript:  LETTER
Category: Information Network
Keyword: 
passwordauthenticationuser anonymity
 Summary | Full Text:PDF(113.1KB)

Simple Anonymous Password-Based Authenticated Key Exchange (SAPAKE), Reconsidered
SeongHan SHIN Kazukuni KOBARA 
Publication:   
Publication Date: 2017/02/01
Vol. E100-A  No. 2  pp. 639-652
Type of Manuscript:  PAPER
Category: Cryptography and Information Security
Keyword: 
passwordauthenticationanonymityprovable security
 Summary | Full Text:PDF(926.7KB)

On Finding Secure Domain Parameters Resistant to Cheon's Algorithm
SeongHan SHIN Kazukuni KOBARA Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/12/01
Vol. E98-A  No. 12  pp. 2456-2470
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Cryptography and Information Security
Keyword: 
elliptic curve domain parametersSDH/related problemsCheon's algorithm
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On Unlinkability of Password-Based Anonymous Authentication
SeongHan SHIN Kazukuni KOBARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/06/01
Vol. E98-A  No. 6  pp. 1320-1324
Type of Manuscript:  LETTER
Category: Cryptography and Information Security
Keyword: 
passwordauthenticationanonymityISO/IEC 20009-4unlinkability
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Hidden Credential Retrieval, Revisited
SeongHan SHIN Kazukuni KOBARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/01/01
Vol. E98-A  No. 1  pp. 428-433
Type of Manuscript:  LETTER
Category: Cryptography and Information Security
Keyword: 
credentials managementpasswordson-line/off-line dictionary attacksinsider/outsider attacks
 Summary | Full Text:PDF(294.9KB)

About Validity Checks of Augmented PAKE in IEEE 1363.2 and ISO/IEC 11770-4
SeongHan SHIN Kazukuni KOBARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/01/01
Vol. E97-A  No. 1  pp. 413-417
Type of Manuscript:  LETTER
Category: Cryptography and Information Security
Keyword: 
PAKEon-line/off-line dictionary attacksaugmented PAKEIEEE 1363.2ISO/IEC 11770-4validity checks
 Summary | Full Text:PDF(103.7KB)

Threshold Anonymous Password-Authenticated Key Exchange Secure against Insider Attacks
SeongHan SHIN Kazukuni KOBARA Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2011/11/01
Vol. E94-D  No. 11  pp. 2095-2110
Type of Manuscript:  Special Section PAPER (Special Section on Information and Communication System Security)
Category: 
Keyword: 
password-authenticated key exchangepasswordson-line/off-line dictionary attacksanonymityinsider attacksprovable security
 Summary | Full Text:PDF(693.9KB)

Security Analysis of Two Augmented Password-Authenticated Key Exchange Protocols
SeongHan SHIN Kazukuni KOBARA Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/11/01
Vol. E93-A  No. 11  pp. 2092-2095
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Cryptography and Information Security
Keyword: 
PAKEon-line/off-line dictionary attacksaugmented PAKEserver-compromise impersonation attacksIEEE P1363.2 working group
 Summary | Full Text:PDF(92.3KB)

An RSA-Based Leakage-Resilient Authenticated Key Exchange Protocol Secure against Replacement Attacks, and Its Extensions
SeongHan SHIN Kazukuni KOBARA Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/06/01
Vol. E93-A  No. 6  pp. 1086-1101
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: Cryptography and Information Security
Keyword: 
authenticated key exchangepasswordson-line/off-line dictionary attacksRSAleakage of stored secretsreplacement attacks
 Summary | Full Text:PDF(7.4MB)

Anonymous Password-Authenticated Key Exchange: New Construction and Its Extensions
SeongHan SHIN Kazukuni KOBARA Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/01/01
Vol. E93-A  No. 1  pp. 102-115
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Secure Protocol
Keyword: 
authenticated key exchangepasswordson-line/off-line dictionary attackspassword-authenticated key exchangeanonymityefficiencyprovable security
 Summary | Full Text:PDF(452.8KB)

A Secure Construction for Threshold Anonymous Password-Authenticated Key Exchange
SeongHan SHIN Kazukuni KOBARA Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/11/01
Vol. E91-A  No. 11  pp. 3312-3324
Type of Manuscript:  PAPER
Category: Cryptography and Information Security
Keyword: 
password authenticationkey exchangePAKEanonymityprovable security
 Summary | Full Text:PDF(402.8KB)

A New Security Architecture for Personal Networks and Its Performance Evaluation
SeongHan SHIN Hanane FATHI Kazukuni KOBARA Neeli R. PRASAD Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/07/01
Vol. E91-B  No. 7  pp. 2255-2264
Type of Manuscript:  PAPER
Category: Network
Keyword: 
personal networksleakage of stored secretsauthentication and key exchangeleakage-resilienceforward secrecysecurity architectureperformance evaluation
 Summary | Full Text:PDF(557.1KB)

RSA-Based Password-Authenticated Key Exchange, Revisited
SeongHan SHIN Kazukuni KOBARA Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2008/05/01
Vol. E91-D  No. 5  pp. 1424-1438
Type of Manuscript:  Special Section PAPER (Special Section on Information and Communication System Security)
Category: Key Management
Keyword: 
password authenticationkey exchangeRSAon-line/off-line attackse-residue attacksprovable security
 Summary | Full Text:PDF(408KB)

A Secure Authenticated Key Exchange Protocol for Credential Services
SeongHan SHIN Kazukuni KOBARA Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/01/01
Vol. E91-A  No. 1  pp. 139-149
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Protocols
Keyword: 
password authenticationkey exchangeleakage of stored secretsroaming protocolpassword-enabled PKIcredential servicesprovable security
 Summary | Full Text:PDF(266.1KB)

An Efficient and Leakage-Resilient RSA-Based Authenticated Key Exchange Protocol with Tight Security Reduction
SeongHan SHIN Kazukuni KOBARA Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/02/01
Vol. E90-A  No. 2  pp. 474-490
Type of Manuscript:  PAPER
Category: Information Security
Keyword: 
authenticated key exchangepasswordson-line and off-line dictionary attacksRSAleakage of stored secretsefficiencyperfect forward secrecy
 Summary | Full Text:PDF(321.4KB)

A Simple Leakage-Resilient Authenticated Key Establishment Protocol, Its Extensions, and Applications
SeongHan SHIN Kazukuni KOBARA Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/03/01
Vol. E88-A  No. 3  pp. 736-754
Type of Manuscript:  PAPER
Category: Information Security
Keyword: 
entropy of passwordson-line and off-line attacksauthenticationkey establishment protocolleakage of stored secretsproactive securityDDH problemstandard model
 Summary | Full Text:PDF(524.8KB)