Ya-Fen Chang

According to our database, Ya-Fen Chang authored at least 72 papers between 2003 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

A Feasible Solution for eHealth with an A nonymous Patient Monitoring System and a Privacy Ensured Telecare Medical Information System.

Ya-Fen Chang, Wei-Liang Tai, Che-Hui Lin

J. Inf. Sci. Eng., November, 2024

2022

Separable Reversible Watermarking in Encrypted Images for Privacy Preservation.

Ya-Fen Chang, Wei-Liang Tai

Symmetry, 2022

Offline User Authentication Ensuring Non-Repudiation and Anonymity.

Ya-Fen Chang, Wei-Liang Tai, Ka-Ho Fung

Sensors, 2022

2021

A Secure Three-Factor Anonymous User Authentication Scheme for Internet of Things Environments.

Ya-Fen Chang, Wei-Liang Tai, Po-Lin Hou, Kuan-Yu Lai

Symmetry, 2021

Security Analyses of an Anonymous Two Factor Authentication Protocol for Roaming Service in Global Mobile Networks.

Ya-Fen Chang, Huan-Wen Chen, Ting-Yu Chang, Wei-Liang Tai

Proceedings of the 22nd IEEE/ACIS International Conference on Software Engineering, 2021

2020

Security Analyses of a Data Collaboration Scheme with Hierarchical Attribute-based Encryption in Cloud Computing.

Wei-Liang Tai, Ya-Fen Chang, Wen-Hsin Huang

Int. J. Netw. Secur., 2020

2019

Security Analysis of a Three-factor Anonymous Authentication Scheme for Wireless Sensor Networks in Internet of Things Environments.

Wei-Liang Tai, Ya-Fen Chang, Po-Lin Hou

Int. J. Netw. Secur., 2019

2018

Separable Reversible Data Hiding in Encrypted Signals with Public Key Cryptography.

Wei-Liang Tai, Ya-Fen Chang

Symmetry, 2018

A DCT-based Robust Watermarking Scheme Surviving JPEG Compression with Voting Strategy.

Pei-Feng Shiu, Chia-Chen Lin, Jinn-Ke Jan, Ya-Fen Chang

J. Netw. Intell., 2018

2017

A Secure Mobility Network Authentication Scheme Ensuring User Anonymity.

Ya-Fen Chang, Wei-Liang Tai, Min-How Hsu

Symmetry, 2017

An IoT notion-based authentication and key agreement scheme ensuring user anonymity for heterogeneous ad hoc wireless sensor networks.

Wei-Liang Tai, Ya-Fen Chang, Wei-Han Li

J. Inf. Secur. Appl., 2017

Comments on a Secure Authentication Scheme for IoT and Cloud Servers.

Wei-Liang Tai, Ya-Fen Chang

Int. J. Netw. Secur., 2017

2016

An Efficient Improvement on Safkhani et al.'s Hash-based Mutual Authentication Protocol for RFID Systems.

Wei-Liang Tai, Ya-Fen Chang, Ti-Sheng Kwang

J. Inf. Hiding Multim. Signal Process., 2016

A Fast-Handover-Supported Authentication Protocol for Vehicular Ad Hoc Networks.

Wei-Liang Tai, Ya-Fen Chang, Yung-Chi Chen

J. Inf. Hiding Multim. Signal Process., 2016

2015

A flexible hierarchical access control mechanism enforcing extension policies.

Ya-Fen Chang

Secur. Commun. Networks, 2015

A Critique of a Lightweight Identity Authentication Protocol for Vehicular Networks.

Xuedan Jia, Ya-Fen Chang, Chin-Chen Chang, Liang-Min Wang

J. Inf. Hiding Multim. Signal Process., 2015

Flexible Access Control over Verifiable Cloud Computing Services with Provable Security.

Ya-Fen Chang

Informatica, 2015

An intelligent context-aware communication system for one single autonomic region to realize smart living.

Ya-Fen Chang, Chia-Chen Chen, Shao-Cian Lin

Inf. Fusion, 2015

2014

A high capacity data hiding scheme for binary images based on block patterns.

Chung-Chuan Wang, Ya-Fen Chang, Chin-Chen Chang, Jinn-Ke Jan, Chia-Chen Lin

J. Syst. Softw., 2014

Untraceable dynamic-identity-based remote user authentication scheme with verifiable password update.

Ya-Fen Chang, Wei-Liang Tai, Hung-Chin Chang

Int. J. Commun. Syst., 2014

Developing a Smart Shopping Automation System: Ambient Intelligence in Practice.

Chia-Chen Chen, Ya-Fen Chang

Ad Hoc Sens. Wirel. Networks, 2014

Comments on Chaotic Maps-Based Password-Authenticated Key Agreement Using Smart Cards.

Ya-Fen Chang, Wei-Liang Tai, Wei-Na Wu, Wei-Han Li, Yung-Chi Chen

Proceedings of the 2014 Tenth International Conference on Intelligent Information Hiding and Multimedia Signal Processing, 2014

2013

A Uniqueness-and-Anonymity-Preserving Remote User Authentication Scheme for Connected Health Care.

Ya-Fen Chang, Shih-Hui Yu, Ding-Rui Shiao

J. Medical Syst., 2013

A Robust and Novel Dynamic-ID-based Authentication Scheme for Care Team Collaboration with Smart Cards.

Ya-Fen Chang, Chia-Chen Chen, Pei-Yu Chang

J. Medical Syst., 2013

An Efficient Authenticated Encryption Scheme Based on ECC and its Application for Electronic Payment.

Jen-Ho Yang, Ya-Fen Chang, Yi-Hui Chen

Inf. Technol. Control., 2013

Authentication Protocols for Reliable Information Provision Systems with Low Computational-Ability Devices.

Ya-Fen Chang, Wei-Liang Tai, Chia-Chen Chen

Informatica, 2013

A Two-Factor and Reader-Undedicated Authentication Scheme with Passive RFID Tags in WLAN.

Ya-Fen Chang, Wei-Liang Tai, Shao-Cian Lin, Ti-Sheng Kwamg

Proceedings of the Ninth International Conference on Signal-Image Technology & Internet-Based Systems, 2013

A user authentication scheme on multi-server environments for cloud computing.

Jen-Ho Yang, Ya-Fen Chang, Chih-Cheng Huang

Proceedings of the 9th International Conference on Information, 2013

A random increasing sequence hash chain and smart card-based remote user authentication scheme.

Jian-Wei Fan, Chao-Wen Chan, Ya-Fen Chang

Proceedings of the 9th International Conference on Information, 2013

2012

Histogram-based Reversible Data Hiding Based on Pixel Differences with Prediction and Sorting.

Ya-Fen Chang, Wei-Liang Tai

KSII Trans. Internet Inf. Syst., 2012

A Verifiable Proxy Signature Scheme Based on Bilinear Pairings with Identity-Based Cryptographic Approaches.

Ya-Fen Chang, Wei-Liang Tai, Chung-Yi Lin

Inf. Technol. Control., 2012

A critique of "A novel electronic cash system with trustee-based anonymity revocation from pairing, " by Chen, Chou, Sun and Cho (2011).

Ya-Fen Chang

Electron. Commer. Res. Appl., 2012

A Security Flaw of a Bilinear-Pairing-Based Electronic Cash Scheme with Trustee-Based Anonymity Revocation.

Yuan-Fu Li, Ya-Fen Chang

Proceedings of the 2012 Sixth International Conference on Genetic and Evolutionary Computing, 2012

Comments on a Dynamic-ID-Based Remote User Authentication Scheme for Multi-server Environment Using Smart Cards.

Ya-Fen Chang, Pei-Yu Chang

Proceedings of the 2012 Sixth International Conference on Genetic and Evolutionary Computing, 2012

A Security Enhancement on a Remote User Authentication Scheme Based on the Rabin Cryptosystem with Secure Password Updating.

Wei-Liang Tai, Ya-Fen Chang, Yuan-Fu Li, Shun-Meng Pan

Proceedings of the 26th International Conference on Advanced Information Networking and Applications Workshops, 2012

2011

Comments on a Secret-Key-Privacy-Preserving Authentication and Key Agreement Scheme.

Ya-Fen Chang, Jhih-Yi Lin, Yuo-Ju Yen

Proceedings of the Fifth International Conference on Genetic and Evolutionary Computing, 2011

A Location-Privacy-Protected RFID Authentication Scheme.

Ya-Fen Chang, Shao-Cian Lin, Pei-Yu Chang

Proceedings of IEEE International Conference on Communications, 2011

2010

Enhancement of Two-Factor User Authentication in Wireless Sensor Networks.

Hui-Feng Huang, Ya-Fen Chang, Chun-Hung Liu

Proceedings of the Sixth International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP 2010), 2010

2009

Performance Evaluation of Mobility Management in Cellular IP.

Jeng-Ji Huang, Ya-Fen Chang

Proceedings of the 70th IEEE Vehicular Technology Conference, 2009

Security of Dynamic ID-Based Remote User Authentication Scheme.

Ya-Fen Chang, Hung-Chin Chang

Proceedings of the International Conference on Networked Computing and Advanced Information Management, 2009

Security of Indirect-Authenticated Key Exchange Protocol.

Hsu-Hung Chiang, Ching-Chung Liu, Ying-Ming Chen, Ya-Fen Chang

Proceedings of the Fifth International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP 2009), 2009

Further Remarks on Identity-Based RSA Multi-signature.

Ya-Fen Chang, Yen-Cheng Lai, Mu-Yen Chen

Proceedings of the Fifth International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP 2009), 2009

An LPN-Problem-Based Lightweight Authentication Protocol for Wireless Communications.

Ya-Fen Chang, Yen-Cheng Lai

Proceedings of the The Forth International Conference on Availability, 2009

2008

Visual secret sharing for multiple secrets.

Jen-Bang Feng, Hsien-Chu Wu, Chwei-Shyong Tsai, Ya-Fen Chang, Yen-Ping Chu

Pattern Recognit., 2008

Comments on the Security Flaw of Hwang et al.'s Blind Signature Scheme.

Fang-Ping Chiang, Yi-Mien Lin, Ya-Fen Chang

Int. J. Netw. Secur., 2008

The Essential Design Principles of Verifiable Non-interactive OT Protocols.

Ya-Fen Chang, Wei-Cheng Shiao

Proceedings of the Eighth International Conference on Intelligent Systems Design and Applications, 2008

2007

A Concealed t-out-of-n Signer Ambiguous Signature Scheme with Variety of Keys.

Ya-Fen Chang, Chin-Chen Chang, Pei-Yu Lin

Informatica, 2007

An RSA-based (t, n) threshold proxy signature scheme with freewill identities.

Ya-Fen Chang, Chin-Chen Chang

Int. J. Inf. Comput. Secur., 2007

Tolerant Key Assignment for Enforcing Complicated Access Control Policies in a Hierarchy.

Ya-Fen Chang, Chin-Chen Chang

Fundam. Informaticae, 2007

Non-Interactive t-out-of-n Oblivious Transfer Based on the RSA Cryptosystem.

Ya-Fen Chang

Proceedings of the 3rd International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP 2007), 2007

2006

A secure and efficient authentication scheme for mobile users.

Ya-Fen Chang, Jung-San Lee, Chin-Chen Chang

Int. J. Mob. Commun., 2006

Comments on Abe et al.'s Threshold Signer-ambiguous Signature Scheme from Variety of Keys.

Ya-Fen Chang, Chin-Chen Chang

Proceedings of the 2006 Joint Conference on Information Sciences, 2006

Comments on Distributed Sign-and-Encryption Schemes.

Ya-Fen Chang, Chin-Chen Chang, Wei-Liang Tai

Proceedings of the International MultiConference of Engineers and Computer Scientists 2006, 2006

A secure improvement on the user-friendly remote authentication scheme with no time concurrency mech.

Ya-Fen Chang, Chin-Chen Chang, Yu-Wei Su

Proceedings of the 20th International Conference on Advanced Information Networking and Applications (AINA 2006), 2006

Enhanced Anonymous Auction Protocols with Freewheeling Bids.

Ya-Fen Chang, Chin-Chen Chang

Proceedings of the 20th International Conference on Advanced Information Networking and Applications (AINA 2006), 2006

2005

An efficient authentication protocol for mobile satellite communication systems.

Ya-Fen Chang, Chin-Chen Chang

ACM SIGOPS Oper. Syst. Rev., 2005

Schemes for Digital Gift Certificates with Low Computation Complexity.

Ya-Fen Chang, Chin-Chen Chang

Informatica, 2005

An efficient password authenticated key exchange protocol for imbalanced wireless networks.

Ya-Fen Chang, Chin-Chen Chang, Jen-Ho Yang

Comput. Stand. Interfaces, 2005

Efficient authentication protocols of GSM.

Chin-Chen Chang, Jung-San Lee, Ya-Fen Chang

Comput. Commun., 2005

Digital signature with message recovery using self-certified public keys without trustworthy system authority.

Ya-Fen Chang, Chin-Chen Chang, Hui-Feng Huang

Appl. Math. Comput., 2005

Authentication schemes with no verification table.

Ya-Fen Chang, Chin-Chen Chang

Appl. Math. Comput., 2005

An Improvement on Strong-Password Authentication Protocols.

Ya-Fen Chang, Chin-Chen Chang

Proceedings of the Embedded Software and Systems, Second International Conference, 2005

An Extendable-Message-Passing Protocol with Signatures Based on Two Hard Problems and Its Applications.

Chin-Chen Chang, Ya-Fen Chang, Wen-Chuan Wu

Proceedings of the 4th International Conference on Cyberworlds (CW 2005), 2005

Password-authenticated 3PEKE with Round Efficiency without Server's Public Key.

Ya-Fen Chang, Chin-Chen Chang

Proceedings of the 4th International Conference on Cyberworlds (CW 2005), 2005

2004

A secure one-time password authentication scheme using smart cards without limiting login times.

Ya-Fen Chang, Chin-Chen Chang, Jui-Yi Kuo

ACM SIGOPS Oper. Syst. Rev., 2004

An improvement on a deniable authentication protocol.

Ya-Fen Chang, Chin-Chen Chang, Chia-Lin Kao

ACM SIGOPS Oper. Syst. Rev., 2004

A secure and efficient strong-password authentication protocol.

Ya-Fen Chang, Chin-Chen Chang

ACM SIGOPS Oper. Syst. Rev., 2004

Signing a digital signature without using one-way hash functions and message redundancy schemes.

Chin-Chen Chang, Ya-Fen Chang

IEEE Commun. Lett., 2004

A novel three-party encrypted key exchange protocol.

Chin-Chen Chang, Ya-Fen Chang

Comput. Stand. Interfaces, 2004

The Security Flaw of an Untraceable Signature Scheme.

Chin-Chen Chang, Ya-Fen Chang

Proceedings of the Fourth International Conference on Electronic Business, 2004

Yet Another Attack on a QR-based Password Authentication System.

Chin-Chen Chang, Ya-Fen Chang

Proceedings of the 18th International Conference on Advanced Information Networking and Applications (AINA 2004), 2004

2003

Efficient anonymous auction protocols with freewheeling bids.

Chin-Chen Chang, Ya-Fen Chang

Comput. Secur., 2003