Efficient anonymous auction protocols with freewheeling bids. - Chin-Chen Chang 001; Ya-Fen Chang (Comput. Secur., 2003)

Yet Another Attack on a QR-based Password Authentication System. - Chin-Chen Chang 001; Ya-Fen Chang (AINA (2), 2004)

The Security Flaw of an Untraceable Signature Scheme. - Chin-Chen Chang 001; Ya-Fen Chang (ICEB, 2004)

A novel three-party encrypted key exchange protocol. - Chin-Chen Chang 001; Ya-Fen Chang (Comput. Stand. Interfaces, 2004)

Signing a digital signature without using one-way hash functions and message redundancy schemes. - Chin-Chen Chang 001; Ya-Fen Chang (IEEE Commun. Lett., 2004)

A secure and efficient strong-password authentication protocol. - Ya-Fen Chang; Chin-Chen Chang 001 (ACM SIGOPS Oper. Syst. Rev., 2004)

An improvement on a deniable authentication protocol. - Ya-Fen Chang; Chin-Chen Chang 001; Chia-Lin Kao (ACM SIGOPS Oper. Syst. Rev., 2004)

A secure one-time password authentication scheme using smart cards without limiting login times. - Ya-Fen Chang; Chin-Chen Chang 001; Jui-Yi Kuo (ACM SIGOPS Oper. Syst. Rev., 2004)

Password-authenticated 3PEKE with Round Efficiency without Server's Public Key. - Ya-Fen Chang; Chin-Chen Chang 001 (CW, 2005)

An Extendable-Message-Passing Protocol with Signatures Based on Two Hard Problems and Its Applications. - Chin-Chen Chang 001; Ya-Fen Chang; Wen-Chuan Wu 002 (CW, 2005)

An Improvement on Strong-Password Authentication Protocols. - Ya-Fen Chang; Chin-Chen Chang 001 (ICESS, 2005)

Authentication schemes with no verification table. - Ya-Fen Chang; Chin-Chen Chang 001 (Appl. Math. Comput., 2005)

Digital signature with message recovery using self-certified public keys without trustworthy system authority. - Ya-Fen Chang; Chin-Chen Chang 001; Hui-Feng Huang (Appl. Math. Comput., 2005)

Efficient authentication protocols of GSM. - Chin-Chen Chang 001; Jung-San Lee; Ya-Fen Chang (Comput. Commun., 2005)

An efficient password authenticated key exchange protocol for imbalanced wireless networks. - Ya-Fen Chang; Chin-Chen Chang 001; Jen-Ho Yang (Comput. Stand. Interfaces, 2005)

Schemes for Digital Gift Certificates with Low Computation Complexity. - Ya-Fen Chang; Chin-Chen Chang 001 (Informatica, 2005)

An efficient authentication protocol for mobile satellite communication systems. - Ya-Fen Chang; Chin-Chen Chang 001 (ACM SIGOPS Oper. Syst. Rev., 2005)

Enhanced Anonymous Auction Protocols with Freewheeling Bids. - Ya-Fen Chang; Chin-Chen Chang 001 (AINA (1), 2006)

A secure improvement on the user-friendly remote authentication scheme with no time concurrency mech. - Ya-Fen Chang; Chin-Chen Chang 001; Yu-Wei Su (AINA (2), 2006)

Comments on Distributed Sign-and-Encryption Schemes. - Ya-Fen Chang; Chin-Chen Chang 001; Wei-Liang Tai (IMECS, 2006)

Comments on Abe et al.'s Threshold Signer-ambiguous Signature Scheme from Variety of Keys. - Ya-Fen Chang; Chin-Chen Chang 001 (JCIS, 2006)

A secure and efficient authentication scheme for mobile users. - Ya-Fen Chang; Jung-San Lee; Chin-Chen Chang 001 (Int. J. Mob. Commun., 2006)

Non-Interactive t-out-of-n Oblivious Transfer Based on the RSA Cryptosystem. - Ya-Fen Chang (IIH-MSP, 2007)

Tolerant Key Assignment for Enforcing Complicated Access Control Policies in a Hierarchy. - Ya-Fen Chang; Chin-Chen Chang 001 (Fundam. Informaticae, 2007)

An RSA-based (t, n) threshold proxy signature scheme with freewill identities. - Ya-Fen Chang; Chin-Chen Chang 001 (Int. J. Inf. Comput. Secur., 2007)

A Concealed t-out-of-n Signer Ambiguous Signature Scheme with Variety of Keys. - Ya-Fen Chang; Chin-Chen Chang 001; Pei-Yu Lin (Informatica, 2007)

The Essential Design Principles of Verifiable Non-interactive OT Protocols. - Ya-Fen Chang; Wei-Cheng Shiao (ISDA (3), 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)

Visual secret sharing for multiple secrets. - Jen-Bang Feng; Hsien-Chu Wu; Chwei-Shyong Tsai; Ya-Fen Chang; Yen-Ping Chu (Pattern Recognit., 2008)

An LPN-Problem-Based Lightweight Authentication Protocol for Wireless Communications. - Ya-Fen Chang; Yen-Cheng Lai (ARES, 2009)

Further Remarks on Identity-Based RSA Multi-signature. - Ya-Fen Chang; Yen-Cheng Lai; Mu-Yen Chen (IIH-MSP, 2009)

Security of Indirect-Authenticated Key Exchange Protocol. - Hsu-Hung Chiang; Ching-Chung Liu; Ying-Ming Chen; Ya-Fen Chang (IIH-MSP, 2009)

Security of Dynamic ID-Based Remote User Authentication Scheme. - Ya-Fen Chang; Hung-Chin Chang (NCM, 2009)

Performance Evaluation of Mobility Management in Cellular IP. - Jeng-Ji Huang; Ya-Fen Chang (VTC Fall, 2009)

Enhancement of Two-Factor User Authentication in Wireless Sensor Networks. - Hui-Feng Huang; Ya-Fen Chang; Chun-Hung Liu (IIH-MSP, 2010)

A Location-Privacy-Protected RFID Authentication Scheme. - Ya-Fen Chang; Shao-Cian Lin; Pei-Yu Chang (ICC, 2011)

Comments on a Secret-Key-Privacy-Preserving Authentication and Key Agreement Scheme. - Ya-Fen Chang; Jhih-Yi Lin; Yuo-Ju Yen (ICGEC, 2011)

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 (AINA Workshops, 2012)

Comments on a Dynamic-ID-Based Remote User Authentication Scheme for Multi-server Environment Using Smart Cards. - Ya-Fen Chang; Pei-Yu Chang (ICGEC, 2012)

A Security Flaw of a Bilinear-Pairing-Based Electronic Cash Scheme with Trustee-Based Anonymity Revocation. - Yuan-Fu Li; Ya-Fen Chang (ICGEC, 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 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)

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 random increasing sequence hash chain and smart card-based remote user authentication scheme. - Jian-Wei Fan; Chao-Wen Chan; Ya-Fen Chang (ICICS, 2013)

A user authentication scheme on multi-server environments for cloud computing. - Jen-Ho Yang; Ya-Fen Chang; Chih-Cheng Huang (ICICS, 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 (SITIS, 2013)

Authentication Protocols for Reliable Information Provision Systems with Low Computational-Ability Devices. - Ya-Fen Chang; Wei-Liang Tai; Chia-Chen Chen (Informatica, 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)

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)

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)

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 (IIH-MSP, 2014)

Developing a Smart Shopping Automation System: Ambient Intelligence in Practice. - Chia-Chen Chen; Ya-Fen Chang (Ad Hoc Sens. Wirel. Networks, 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)

A high capacity data hiding scheme for binary images based on block patterns. - Chung-Chuan Wang; Ya-Fen Chang; Chin-Chen Chang 001; Jinn-Ke Jan; Chia-Chen Lin 001 (J. Syst. Softw., 2014)

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)

Flexible Access Control over Verifiable Cloud Computing Services with Provable Security. - Ya-Fen Chang (Informatica, 2015)

A Critique of a Lightweight Identity Authentication Protocol for Vehicular Networks. - Xuedan Jia; Ya-Fen Chang; Chin-Chen Chang 001; Liang-Min Wang 001 (J. Inf. Hiding Multim. Signal Process., 2015)

A flexible hierarchical access control mechanism enforcing extension policies. - Ya-Fen Chang (Secur. Commun. Networks, 2015)

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)

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)

Comments on a Secure Authentication Scheme for IoT and Cloud Servers. - Wei-Liang Tai; Ya-Fen Chang (Int. J. Netw. Secur., 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)

A Secure Mobility Network Authentication Scheme Ensuring User Anonymity. - Ya-Fen Chang; Wei-Liang Tai; Min-How Hsu (Symmetry, 2017)

A DCT-based Robust Watermarking Scheme Surviving JPEG Compression with Voting Strategy. - Pei-Feng Shiu; Chia-Chen Lin 001; Jinn-Ke Jan; Ya-Fen Chang (J. Netw. Intell., 2018)

Separable Reversible Data Hiding in Encrypted Signals with Public Key Cryptography. - Wei-Liang Tai; Ya-Fen Chang (Symmetry, 2018)

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)

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)

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 (SNPD, 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)

Offline User Authentication Ensuring Non-Repudiation and Anonymity. - Ya-Fen Chang; Wei-Liang Tai; Ka-Ho Fung (Sensors, 2022)

Separable Reversible Watermarking in Encrypted Images for Privacy Preservation. - Ya-Fen Chang; Wei-Liang Tai (Symmetry, 2022)

Comments on a lightweight authentication and key agreement framework for smart grids. - Ya-Fen Chang; Yi-Chun Liao; Pei-Shih Chang; Wei-Liang Tai (ASSE, 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., 2024)