Wei-Chi KU


A Simple Sector-Based Textual-Graphical Password Scheme with Resistance to Login-Recording Attacks
Wei-Chi KU Bo-Ren CHENG Yu-Chang YEH Chia-Ju CHANG 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2016/02/01
Vol. E99-D  No. 2  pp. 529-532
Type of Manuscript:  LETTER
Category: Information Network
Keyword: 
accidental loginlogin-recording attackshoulder-surfing attacktextual-graphical password
 Summary | Full Text:PDF(491.5KB)

A Sector-Based Graphical Password Scheme with Resistance to Login-Recording Attacks
Wei-Chi KU Yu-Chang YEH Bo-Ren CHENG Chia-Ju CHANG 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2015/04/01
Vol. E98-D  No. 4  pp. 894-901
Type of Manuscript:  PAPER
Category: Information Network
Keyword: 
accidental logingraphical passwordlogin-recording attackshoulder-surfing attack
 Summary | Full Text:PDF(1.7MB)

Weaknesses of Two SAS-Like Password Authentication Schemes
Min-Hung CHIANG Wei-Chi KU 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/02/01
Vol. E89-B  No. 2  pp. 594-597
Type of Manuscript:  LETTER
Category: Fundamental Theories for Communications
Keyword: 
denial-of-service attackpassword authenticationreparabilitysmart card
 Summary | Full Text:PDF(69.9KB)

Vulnerabilities of Wu-Chieu's Improved Password Authentication Scheme Using Smart Cards
Wei-Chi KU Hsiu-Mei CHUANG Maw-Jinn TSAUR 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/11/01
Vol. E88-A  No. 11  pp. 3241-3243
Type of Manuscript:  LETTER
Category: Information Security
Keyword: 
cryptographypassword authenticationforgery attacksmart card
 Summary | Full Text:PDF(58.2KB)

Cryptanalysis of a Multi-Server Password Authenticated Key Agreement Scheme Using Smart Cards
Wei-Chi KU Hsiu-Mei CHUANG Min-Hung CHIANG 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/11/01
Vol. E88-A  No. 11  pp. 3235-3238
Type of Manuscript:  LETTER
Category: Information Security
Keyword: 
key agreementmulti-server architecturemutual authenticationpasswordsmart card
 Summary | Full Text:PDF(70.3KB)

Weaknesses of a Remote User Authentication Scheme Using Smart Cards for Multi-Server Architecture
Wei-Chi KU Shen-Tien CHANG Min-Hung CHIANG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/08/01
Vol. E88-B  No. 8  pp. 3451-3454
Type of Manuscript:  LETTER
Category: Fundamental Theories for Communications
Keyword: 
Euclidean planeforgery attackmulti-server architecturepassword authenticationsmart card
 Summary | Full Text:PDF(75.4KB)

Impersonation Attack on a Dynamic ID-Based Remote User Authentication Scheme Using Smart Cards
Wei-Chi KU Shen-Tien CHANG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/05/01
Vol. E88-B  No. 5  pp. 2165-2167
Type of Manuscript:  LETTER
Category: Fundamental Theories for Communications
Keyword: 
dynamic IDimpersonation attackpassword authenticationreparabilitysmart card
 Summary | Full Text:PDF(56.6KB)

Stolen-Verifier Attack on an Efficient Smartcard-Based One-Time Password Authentication Scheme
Wei-Chi KU Hao-Chuan TSAI Maw-Jinn TSAUR 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/08/01
Vol. E87-B  No. 8  pp. 2374-2376
Type of Manuscript:  LETTER
Category: Fundamental Theories
Keyword: 
smartcardpasswordauthenticationS/KEYhash function
 Summary | Full Text:PDF(69.6KB)

Reflection Attack on a Generalized Key Agreement and Password Authentication Protocol
Wei-Chi KU Hui-Lung LEE Chien-Ming CHEN 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/05/01
Vol. E87-B  No. 5  pp. 1386-1388
Type of Manuscript:  LETTER
Category: Fundamental Theories
Keyword: 
authenticationkey agreementpasswordreflection attack
 Summary | Full Text:PDF(67.5KB)

Cryptanalysis of a Variant of Peyravian-Zunic's Password Authentication Scheme
Wei-Chi KU Chien-Ming CHEN Hui-Lung LEE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/05/01
Vol. E86-B  No. 5  pp. 1682-1684
Type of Manuscript:  LETTER
Category: Fundamental Theories
Keyword: 
authenticationpassworddenial of service attackreplay attack
 Summary | Full Text:PDF(107.6KB)

Stolen-Verifier Attack on Two New Strong-Password Authentication Protocols
Chien-Ming CHEN Wei-Chi KU 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/11/01
Vol. E85-B  No. 11  pp. 2519-2521
Type of Manuscript:  LETTER
Category: Fundamental Theories
Keyword: 
cryptographic hash functionstrong-password authenticationstolen-verifier attackreplay attack
 Summary | Full Text:PDF(112.2KB)