Pankaj Khatiwada

Mr. Pankaj Khatiwada

NTNU, Gjøvik, Oppland, Norway
orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
Verified
Journal Article
Open access
PDF file
PKPankaj Khatiwada
Pankaj Khatiwada
BYBian Yang
Bian Yang
Jia-Chun LinJia-Chun Lin
Jia-Chun Lin
BBBernd Blobel
Bernd Blobel
The evolution of Patient-Generated Health Data (PGHD) represents a major shift in healthcare, fueled by technological progress. The advent of PGHD, with technologies such as wearable devices and home monitoring systems, extends data collection beyond clinical environments, enabling continuous monitoring and patient engagement in their health management. Despite the growing prevalence of PGHD, there is a lack of clear understanding among stakeholders about its meaning, along with concerns about data security, privacy, and accuracy. This article aims to thoroughly review and clarify PGHD by examining its origins, types, technological foundations, and the challenges it faces, especially in terms of privacy and security regulations. The review emphasizes the role of PGHD in transforming healthcare through patient-centric approaches, their understanding, and personalized care, while also exploring emerging technologies and addressing data privacy and security issues, offering a comprehensive perspective on the current state and future directions of PGHD. The methodology employed for this review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and Rayyan, AI-Powered Tool for Systematic Literature Reviews. This approach ensures a systematic and comprehensive coverage of the available literature on PGHD, focusing on the various aspects outlined in the objective. The review encompassed 36 peer-reviewed articles from various esteemed publishers and databases, reflecting a diverse range of methodologies, including interviews, regular articles, review articles, and empirical studies to address three RQs exploratory, impact assessment, and solution-oriented questions related to PGHD. Additionally, to address the future-oriented fourth RQ for PGHD not covered in the above review, we have incorporated existing domain knowledge articles. This inclusion aims to provide answers encompassing both basic and advanced security measures for PGHD, thereby enhancing the depth and scope of our analysis.

7 April 2022 in IEEE Access
Verified
Journal Article
Open access
AYAN CHATTERJEEAYAN CHATTERJEE
AYAN CHATTERJEE
MGMartin W. Gerdes
Martin W. Gerdes
PKPankaj Khatiwada
Pankaj Khatiwada
APAndreas Prinz
Andreas Prinz
The Internet of Medical Things (IoMT) combines medical devices and applications that use network technologies to connect healthcare information systems (HIS). IoMT is reforming the medical industry by adopting information and communication technologies (ICTs). Identity verification, secure collection, and exchange of medical data are essential in health applications. In this study, we implemented a hybrid security solution to secure the collection and management of personal health data using Spring Framework (SF), Services for Sensitive Data (TSD) as a service platform, and Hyper-Text-Transfer-Protocol (HTTP (H)) security methods. The adopted solution (SFTSDH = SF + TSD + H) instigated the following security features: identity brokering, OAuth2, multifactor authentication, and access control to protect the Microservices Architecture Application Programming Interfaces (APIs), following the General Data Protection Regulation (GDPR). Moreover, we extended the adopted security solution to develop a digital infrastructure to facilitate the research and innovation work in the electronic health (eHealth) section, focusing on solution validation with theoretical evaluation and experimental testing. We used a web engineering security methodology to achieve and explain the adopted security solution. As a case study, we designed and implemented electronic coaching (eCoaching) prototype system and deployed the same in the developed infrastructure to securely record and share personal health data. Furthermore, we compared the test results with related studies qualitatively for the efficient evaluation of the implemented security solution. The SFTSDH implementation and configuration in the prototype system have effectively secured the eCoach APIs from an attack in all the considered scenarios. The eCoach prototype with the SFTSDH solution effectively sustained a load of (≈) 1000 concurrent users in the developed digital health infrastructure. In addition, we performed a qualitative comparison among the following security solutions: SF security, third-party security, and SFTSDH, where SFTSDH showed a promising outcome.

3 November 2022
Verified
Book Chapter
Open access
PDF file
PKPankaj Khatiwada
Pankaj Khatiwada
BYBian Yang
Bian Yang
The Internet of Medical Things (IoMT) emerges with new trendsetter device applications, where it defines the incorporation of medical devices with the Internet of Things (IoT). The healthcare sector continues to encounter challenging obstacles that have an impact on the quality of treatment provided to patients. To get rid of this problem, IoMT is being deployed to achieve the high reliability and efficiency of the health system. The IoMT devices are superimposed with clinical information as they contain the details of patient health data, address, and other patient identifiers. By containing such amount of sensitive information, it becomes cumbersome to preserve data privacy and security. Due to inadequate security and privacy precautions, patient health data is susceptible to leakage, which has a direct impact on the patient’s life. In addition, the majority of medical devices are susceptible to cyberattacks, putting patient information at risk. Inadequate control of life-support equipment can have a devastating effect on patient outcomes. Thus, this survey intends to review the various security models of IoMT devices using standard techniques to support health care systems. It provides a wide range of literature reviews regarding IoMT systems and compares them with traditional methodologies. This review work exhibits the motivation for current technologies to maintain the security and privacy of patients’ data with IoMT devices. The systematic review entails background on security in IoMT devices, techniques for security, usage of diverse validation measures, and also discusses the problems and motivation for future research work.

28 March 2022
Verified
Conference Paper
Closed access
PKPankaj Khatiwada
Pankaj Khatiwada
BYBian Yang
Bian Yang
Data privacy and data availability remain the major concern in centralized cloud storage, which could be handled effectively through the concept of decentralized data storage. However, the secrecy of data sharing is a rising concern in the decentralized data storage for which the effective access control and data sharing scheme, hash and session key-dependent attribute-based encryption (HS-ABE) is proposed in this research. Accordingly, the multi-level access control and sharing strategy authenticates the genuine requestors and assures access to the requestors upon the authentication of their attribute sets. In this perspective of access control and secure data sharing, Ethereum blockchain, decentralized Interplanetary File System (IPFS), HS-ABE are organized. The data owners (DOs) provide the secret attribute set for the requestors ensuring fine-grained access over the data. The performance of the developed HS-ABE scheme is investigated and compared with the conventional strategies, where the memory usage of the proposed scheme is 5812 Kbps, which proclaims a well-defined secure access control and authentication in the Blockchain-based cloud storage.

24 October 2023
Verified
Conference Paper
Open access
PKPankaj Khatiwada
Pankaj Khatiwada
MFMuhammad Ali Fauzi
Muhammad Ali Fauzi
BYBian Yang
Bian Yang
PYProsper Yeng
Prosper Yeng
Jia-Chun LinJia-Chun Lin
Jia-Chun Lin
LSLuyi Sun
Luyi Sun
This paper provides a comprehensive exploration of the threats and risk associated with the use of digital technology for remote healthcare. Through our "DigiRemote" research project, we aim to find out the challenges and risks involved in scaling remote health care, with specific focus on its technical and security dimensions. The article delves into the use of digital technologies, including Bluetooth-enabled IoMT devices, for monitoring health metrics in remote care settings. Emphasis is placed on understanding the threats in the generation, storage, and transfer of health data. By, utilizing the STRIDE (Spoofing, Tampering, Repudiation, Information disclosure, Denial of service, and Elevation of privilege) model, we identified major threats, which are visually represented via heatmaps and bar graphs for ease of analysis. The DREAD (Damage, Reproducibility, Exploitability, Affected Users, and Discoverability) model assists in quantifying these threats, categorizing them into distinct risk levels, with detailed description of each threat category. In addition, we also suggest countermeasures for the highest-risk threats. This article serves as a pivotal resource for healthcare organizations and security professionals, shedding light on the risks of remote healthcare and providing mitigation strategies for both the implementation and post-implementation stages.

6 February 2024 in IoT
Verified
Journal Article
Open access
PDF file
PKPankaj Khatiwada
Pankaj Khatiwada
BYBian Yang
Bian Yang
Jia-Chun LinJia-Chun Lin
Jia-Chun Lin
GMGodfrey Mugurusi
Godfrey Mugurusi
SUStian Underbekken
Stian Underbekken
Internet of Things (IoT) devices have changed how billions of people in the world connect and interact with each other. But, as more people use IoT devices, many questions arise about how these devices handle private data and whether they properly ask for permission when using it. Due to information privacy regulations such as the EU’s General Data Protection Regulation (GDPR), which requires companies to seek permission from data subjects (DS) before using their data, it is crucial for IoT companies to obtain this permission correctly. However, this can be really challenging in the IoT world because people often find it difficult to interact with and manage multiple IoT devices under their control. Also, the rules about privacy are not always clear. As such, this paper proposes a new model to improve how consent is managed in the world of IoT. The model seeks to minimize “consent fatigue” (when people get tired of always being asked for permission) and give DS more control over how their data are shared. This includes having default permission settings, being able to compare similar devices, and, in the future, using AI to give personalized advice. The model allows users to easily review and change their IoT device permissions if previous conditions are not met. It also emphasizes the need for easily understandable privacy rules, clear communication with users, and robust tracking of consent for data usage. By using this model, companies that provide IoT services can do a better job of protecting user privacy and managing DS consent. In addition, companies can more easily comply with data protection laws and build stronger relationships with their customers.