Displaying publications 1 - 20 of 64 in total

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  1. Ranak MSAN, Azad S, Nor NNHBM, Zamli KZ
    PLoS One, 2017;12(10):e0186940.
    PMID: 29084262 DOI: 10.1371/journal.pone.0186940
    Due to recent advancements and appealing applications, the purchase rate of smart devices is increasing at a higher rate. Parallely, the security related threats and attacks are also increasing at a greater ratio on these devices. As a result, a considerable number of attacks have been noted in the recent past. To resist these attacks, many password-based authentication schemes are proposed. However, most of these schemes are not screen size independent; whereas, smart devices come in different sizes. Specifically, they are not suitable for miniature smart devices due to the small screen size and/or lack of full sized keyboards. In this paper, we propose a new screen size independent password-based authentication scheme, which also offers an affordable defense against shoulder surfing, brute force, and smudge attacks. In the proposed scheme, the Press Touch (PT)-a.k.a., Force Touch in Apple's MacBook, Apple Watch, ZTE's Axon 7 phone; 3D Touch in iPhone 6 and 7; and so on-is transformed into a new type of code, named Press Touch Code (PTC). We design and implement three variants of it, namely mono-PTC, multi-PTC, and multi-PTC with Grid, on the Android Operating System. An in-lab experiment and a comprehensive survey have been conducted on 105 participants to demonstrate the effectiveness of the proposed scheme.
    Matched MeSH terms: Confidentiality
  2. Hussien HM, Yasin SM, Udzir SNI, Zaidan AA, Zaidan BB
    J Med Syst, 2019 Sep 14;43(10):320.
    PMID: 31522262 DOI: 10.1007/s10916-019-1445-8
    Blockchain in healthcare applications requires robust security and privacy mechanism for high-level authentication, interoperability and medical records sharing to comply with the strict legal requirements of the Health Insurance Portability and Accountability Act of 1996. Blockchain technology in the healthcare industry has received considerable research attention in recent years. This study conducts a review to substantially analyse and map the research landscape of current technologies, mainly the use of blockchain in healthcare applications, into a coherent taxonomy. The present study systematically searches all relevant research articles on blockchain in healthcare applications in three accessible databases, namely, ScienceDirect, IEEE and Web of Science, by using the defined keywords 'blockchain', 'healthcare' and 'electronic health records' and their variations. The final set of collected articles related to the use of blockchain in healthcare application is divided into three categories. The first category includes articles (i.e. 43/58 scientific articles) that attempted to develop and design healthcare applications integrating blockchain, particularly those on new architecture, system designs, framework, scheme, model, platform, approach, protocol and algorithm. The second category includes studies (i.e., 6/58 scientific articles) that attempted to evaluate and analyse the adoption of blockchain in the healthcare system. Finally, the third category comprises review and survey articles (i.e., 6/58 scientific articles) related to the integration of blockchain into healthcare applications. The final articles for review are discussed on the basis of five aspects: (1) year of publication, (2) nationality of authors, (3) publishing house or journal, (4) purpose of using blockchain in health applications and the corresponding contributions and (5) problem types and proposed solutions. Additionally, this study provides identified motivations, open challenges and recommendations on the use of blockchain in healthcare applications. The current research contributes to the literature by providing a detailed review of feasible alternatives and identifying the research gaps. Accordingly, researchers and developers are provided with appealing opportunities to further develop decentralised healthcare applications through a comprehensive discussion of about the importance of blockchain and its integration into various healthcare applications.
    Matched MeSH terms: Confidentiality
  3. Kiah ML, Nabi MS, Zaidan BB, Zaidan AA
    J Med Syst, 2013 Oct;37(5):9971.
    PMID: 24037086 DOI: 10.1007/s10916-013-9971-2
    This study aims to provide security solutions for implementing electronic medical records (EMRs). E-Health organizations could utilize the proposed method and implement recommended solutions in medical/health systems. Majority of the required security features of EMRs were noted. The methods used were tested against each of these security features. In implementing the system, the combination that satisfied all of the security features of EMRs was selected. Secure implementation and management of EMRs facilitate the safeguarding of the confidentiality, integrity, and availability of e-health organization systems. Health practitioners, patients, and visitors can use the information system facilities safely and with confidence anytime and anywhere. After critically reviewing security and data transmission methods, a new hybrid method was proposed to be implemented on EMR systems. This method will enhance the robustness, security, and integration of EMR systems. The hybrid of simple object access protocol/extensible markup language (XML) with advanced encryption standard and secure hash algorithm version 1 has achieved the security requirements of an EMR system with the capability of integrating with other systems through the design of XML messages.
    Matched MeSH terms: Confidentiality
  4. Da Silva RD, Leow JJ, Abidin ZA, Linden-Castro E, Castro EIB, Blanco LT, et al.
    Int Braz J Urol, 2019 10 19;45(5):882-888.
    PMID: 31626517 DOI: 10.1590/S1677-5538.IBJU.2019.05.04
    Matched MeSH terms: Confidentiality
  5. Wolffers I
    Lancet, 1996 Mar 02;347(9001):620.
    PMID: 8596348
    Matched MeSH terms: Confidentiality*
  6. Hilyatihanina Zazali, Wan Ainun Mior Othman
    Sains Malaysiana, 2012;41:907-910.
    In this paper, we presented a new key exchange method based on decomposition problem for elliptic curve cryptography. We showed that our key exchange method was not only an alternative method for designing keys in cryptography, but it also has improved security condition from the previous key exchange based on decomposition problem over noncommutative groups. We proposed elliptic an curve cryptography to be the new platform for our key exchange protocol and showed how it was implemented. The security of our protocol was based on discrete logarithm problem, which was not infeasible and strictly difficult to retrieve in elliptic curve cryptography without any prior knowledge.
    Matched MeSH terms: Confidentiality
  7. Omar H, Khan SA, Toh CG
    J Dent Educ, 2013 May;77(5):640-7.
    PMID: 23658411
    Student-generated videos provide an authentic learning experience for students, enhance motivation and engagement, improve communication skills, and improve collaborative learning skills. This article describes the development and implementation of a student-generated video activity as part of a knowledge, observation, simulation, and experience (KOSE) program at the School of Dentistry, International Medical University, Kuala Lumpur, Malaysia. It also reports the students' perceptions of an activity that introduced first-year dental students (n=44) to clinical scenarios involving patients and dental team aiming to improve professional behavior and communication skills. The learning activity was divided into three phases: preparatory phase, video production phase, and video-watching. Students were organized into five groups and were instructed to generate videos addressing given clinical scenarios. Following the activity, students' perceptions were assessed with a questionnaire. The results showed that 86 percent and 88 percent, respectively, of the students agreed that preparation of the activity enhanced their understanding of the role of dentists in provision of health care and the role of enhanced teamwork. In addition, 86 percent and 75 percent, respectively, agreed that the activity improved their communication and project management skills. Overall, the dental students perceived that the student-generated video activity was a positive experience and enabled them to play the major role in driving their learning process.
    Matched MeSH terms: Confidentiality
  8. Nur Azien Yazid, Kamilah Abdullah, Suhaila Abd Halim
    ESTEEM Academic Journal, 2019;15(1):44-55.
    MyJurnal
    Image watermarking embeds identifying information in an image in such a manner that it cannot easily be removed. For the past several years, image digital watermarking has become a necessary element used for hiding secret image and enabling secured communication such as
    privacy, confidentiality, authentication and data integrity. Although numerous watermarking schemes are present in grayscale images, the present work focuses on the RGB color image. This study proposed a new hybrid method that would satisfy the essential needs of modern image watermarking. The color image watermarking is based on the 2D Discrete Cosine Transform and Elgamal cryptosystem. The 2D Discrete Cosine Transform depends on the matrix products, while the Elgamal cryptosystem depends on the discrete logarithm problem. The cryptosystem is combined with existing Arnold transform in watermarking algorithm to enhance the security of secret image. Value of Peak Signal to Noise Ratio was taken as performance evaluation parameters. On the whole, the performance evaluation shows that combining the two algorithms improved the performance of image watermarking.
    Matched MeSH terms: Confidentiality
  9. Safavi S, Shukur Z
    PLoS One, 2014;9(12):e114306.
    PMID: 25478915 DOI: 10.1371/journal.pone.0114306
    Wearable health tech provides doctors with the ability to remotely supervise their patients' wellness. It also makes it much easier to authorize someone else to take appropriate actions to ensure the person's wellness than ever before. Information Technology may soon change the way medicine is practiced, improving the performance, while reducing the price of healthcare. We analyzed the secrecy demands of wearable devices, including Smartphone, smart watch and their computing techniques, that can soon change the way healthcare is provided. However, before this is adopted in practice, all devices must be equipped with sufficient privacy capabilities related to healthcare service. In this paper, we formulated a new improved conceptual framework for wearable healthcare systems. This framework consists of ten principles and nine checklists, capable of providing complete privacy protection package to wearable device owners. We constructed this framework based on the analysis of existing mobile technology, the results of which are combined with the existing security standards. The approach also incorporates the market share percentage level of every app and its respective OS. This framework is evaluated based on the stringent CIA and HIPAA principles for information security. This evaluation is followed by testing the capability to revoke rights of subjects to access objects and ability to determine the set of available permissions for a particular subject for all models Finally, as the last step, we examine the complexity of the required initial setup.
    Matched MeSH terms: Confidentiality*
  10. Yousuf RM, Fauzi AR, How SH, Akter SF, Shah A
    Singapore Med J, 2009 May;50(5):494-9.
    PMID: 19495519
    Optimal patient care varies considerably from place to place and is influenced by scientific as well as social developments. The purpose of this study was to investigate awareness and pertinent issues regarding informed consent among hospitalised patients and to determine lapses, in order to improve the standard of care.
    Matched MeSH terms: Confidentiality/legislation & jurisprudence*
  11. LIM SOK FERN, SITI ZANARIAH AHMAD ISHAK
    MyJurnal
    The aim of this study is to examine the factors that drive students’ self-disclosure on Social Networking Sites (SNSs). A total of 215 undergraduates from two public universities in East Malaysia were recruited as respondents. This study adapts self-disclosure model by Elmi, A.Iahad and Ahmed (2012), where the model proposed trust as one of the factors that complementing other existing factors in online self-disclosure. This study proved that privacy concerns (r = -.212, p < .01), perceived trust (r = .22, p < .01), perceived ease of use (r = .213, p < .01), and perceived enjoyment (r = .28, p < .01) are significantly related to students’ online self-disclosure on SNSs. In addition, as trust plays a vital role in moderating the users’ online self-disclosure behavior, this study formulated students’ trusts on SNSs based on three dimensions which are individual, institutional and online trust. Findings of study suggested that there is a significant difference between online trust based on male and female respondents.
    Matched MeSH terms: Confidentiality
  12. Zakaria N, Ramli R
    Neuropsychiatr Dis Treat, 2018;14:117-128.
    PMID: 29343963 DOI: 10.2147/NDT.S115261
    Background: Psychiatric patients have privacy concerns when it comes to technology intervention in the hospital setting. In this paper, we present scenarios for psychiatric behavioral monitoring systems to be placed in psychiatric wards to understand patients' perception regarding privacy. Psychiatric behavioral monitoring refers to systems that are deemed useful in measuring clinical outcomes, but little research has been done on how these systems will impact patients' privacy.

    Methods: We conducted a case study in one teaching hospital in Malaysia. We investigated the physical factors that influence patients' perceived privacy with respect to a psychiatric monitoring system. The eight physical factors identified from the information system development privacy model, a comprehensive model for designing a privacy-sensitive information system, were adapted in this research. Scenario-based interviews were conducted with 25 patients in a psychiatric ward for 3 months.

    Results: Psychiatric patients were able to share how physical factors influence their perception of privacy. Results show how patients responded to each of these dimensions in the context of a psychiatric behavioral monitoring system.

    Conclusion: Some subfactors under physical privacy are modified to reflect the data obtained in the interviews. We were able to capture the different physical factors that influence patient privacy.

    Matched MeSH terms: Confidentiality
  13. Yau WC, Phan RC
    J Med Syst, 2013 Dec;37(6):9993.
    PMID: 24194093 DOI: 10.1007/s10916-013-9993-9
    Many authentication schemes have been proposed for telecare medicine information systems (TMIS) to ensure the privacy, integrity, and availability of patient records. These schemes are crucial for TMIS systems because otherwise patients' medical records become susceptible to tampering thus hampering diagnosis or private medical conditions of patients could be disclosed to parties who do not have a right to access such information. Very recently, Hao et al. proposed a chaotic map-based authentication scheme for telecare medicine information systems in a recent issue of Journal of Medical Systems. They claimed that the authentication scheme can withstand various attacks and it is secure to be used in TMIS. In this paper, we show that this authentication scheme is vulnerable to key-compromise impersonation attacks, off-line password guessing attacks upon compromising of a smart card, and parallel session attacks. We also exploit weaknesses in the password change phase of the scheme to mount a denial-of-service attack. Our results show that this scheme cannot be used to provide security in a telecare medicine information system.
    Matched MeSH terms: Confidentiality/standards*
  14. Chung Su Chin, Pauline Stitt
    MyJurnal
    Introduction: During resuscitation efforts, patients’ families are routinely barred from the resuscitation area. Even there is an increased in demand from the family members requesting to be present during resuscitation of their loved one, health care providers not always offer the option for family presence. The major concerns of health care providers who are opposed to family presence during resuscitation (FPDR) were fear of psychological trauma to family members who witnessed the resuscitation. This study aimed to examine the critical care nurses’ perception and attitudes towards the presence of patients’ family members during resuscitation in adult critical care units. Methods: Study papers included were narrowed to primary study, published within 2003-2014, describing nurses’ perceptions and attitudes on an adult inpatient family witnessed resuscitation in critical care units. Results: Seven studies included, and four main themes emerged mainly samples population, nurses’ experiences of FPDR, nurses’ responses toward FPDR and factor predicting nurses’ attitudes toward FPDR. 20% - 42.2% of nurses had experienced FPDR. Only 4% - 6% of study participants working in hospital with established policy and 95% - 100% had not invited family members to witnessed resuscitation. Nurses would consider the option if family members are accompanied by trained staff. Nurses concern included difficult to concentrate, negatively affecting their per- formance, increased rate of legal action, inadequate staff and limited space. Concerns on family members included too distressing event, negative psychological impact argue and interfere with staff. Concerns on patient would be breach of confidentiality. Conclusion: Adult critical care nurses demonstrated negative perceptions and attitudes towards FPDR. Study participants in this review are not familiar with the concept of FPDR. There is a need for policy development and education on FPDR.
    Matched MeSH terms: Confidentiality
  15. Patricia Sator
    MyJurnal
    Introduction: Nursing is a regulated profession. Hence, the global commitment for nurses to maintain standards of practice is vital to deliver safe and competent care. Written policies will eliminate uncertainty, ambiguity, and legal issues. For this study, it focused on the importance of the nursing students to understand and practice the regulation on patient’s confidentiality in healthcare setting with the usage of technology such as social media. There is a case like nursing student infringe the privacy of patients with the information they posted on social media, such as posting a patient’s photos or videos without valid consent. Methods: This study is a quantitative, cross-sectional survey de- sign. The respondents were selected as convenience sampling of 120 nursing students from the Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah (FMHS, UMS). Results: There are 7.4% nursing students intention- ally posted in social media, 18.0% maybe and 73.8% unintentionally. And for their guilty feeling after committing confidentially policy breach on patient, there are 8.2% said NO, 32.8% said MAYBE and 59% said YES. Overall, the nursing students are aware of the patient’s confidentiality but there is still a leakage in practicing full nursing standards and regulation. Further study recommended to explore more on this issue. Conclusion: As a conclusion, this study is relevant to conduct among the nursing students to gain their understanding regarding the responsibilities as a future nurse in maintaining the patient’s confidentiality as one of the most important nursing practices to ensure quality of care and continuation of professional service of nursing profession.
    Matched MeSH terms: Confidentiality
  16. Jayabalan M, O'Daniel T
    J Med Syst, 2016 Dec;40(12):261.
    PMID: 27722981
    This study presents a systematic literature review of access control for electronic health record systems to protect patient's privacy. Articles from 2006 to 2016 were extracted from the ACM Digital Library, IEEE Xplore Digital Library, Science Direct, MEDLINE, and MetaPress using broad eligibility criteria, and chosen for inclusion based on analysis of ISO22600. Cryptographic standards and methods were left outside the scope of this review. Three broad classes of models are being actively investigated and developed: access control for electronic health records, access control for interoperability, and access control for risk analysis. Traditional role-based access control models are extended with spatial, temporal, probabilistic, dynamic, and semantic aspects to capture contextual information and provide granular access control. Maintenance of audit trails and facilities for overriding normal roles to allow full access in emergency cases are common features. Access privilege frameworks utilizing ontology-based knowledge representation for defining the rules have attracted considerable interest, due to the higher level of abstraction that makes it possible to model domain knowledge and validate access requests efficiently.
    Matched MeSH terms: Confidentiality
  17. Hussien HM, Yasin SM, Udzir NI, Ninggal MIH
    Sensors (Basel), 2021 Apr 02;21(7).
    PMID: 33918266 DOI: 10.3390/s21072462
    Blockchain technology provides a tremendous opportunity to transform current personal health record (PHR) systems into a decentralised network infrastructure. However, such technology possesses some drawbacks, such as issues in privacy and storage capacity. Given its transparency and decentralised features, medical data are visible to everyone on the network and are inappropriate for certain medical applications. By contrast, storing vast medical data, such as patient medical history, laboratory tests, X-rays, and MRIs, significantly affect the repository storage of blockchain. This study bridges the gap between PHRs and blockchain technology by offloading the vast medical data into the InterPlanetary File System (IPFS) storage and establishing an enforced cryptographic authorisation and access control scheme for outsourced encrypted medical data. The access control scheme is constructed on the basis of the new lightweight cryptographic concept named smart contract-based attribute-based searchable encryption (SC-ABSE). This newly cryptographic primitive is developed by extending ciphertext-policy attribute-based encryption (CP-ABE) and searchable symmetric encryption (SSE) and by leveraging the technology of smart contracts to achieve the following: (1) efficient and secure fine-grained access control of outsourced encrypted data, (2) confidentiality of data by eliminating trusted private key generators, and (3) multikeyword searchable mechanism. Based on decisional bilinear Diffie-Hellman hardness assumptions (DBDH) and discrete logarithm (DL) problems, the rigorous security indistinguishability analysis indicates that SC-ABSE is secure against the chosen-keyword attack (CKA) and keyword secrecy (KS) in the standard model. In addition, user collusion attacks are prevented, and the tamper-proof resistance of data is ensured. Furthermore, security validation is verified by simulating a formal verification scenario using Automated Validation of Internet Security Protocols and Applications (AVISPA), thereby unveiling that SC-ABSE is resistant to man-in-the-middle (MIM) and replay attacks. The experimental analysis utilised real-world datasets to demonstrate the efficiency and utility of SC-ABSE in terms of computation overhead, storage cost and communication overhead. The proposed scheme is also designed and developed to evaluate throughput and latency transactions using a standard benchmark tool known as Caliper. Lastly, simulation results show that SC-ABSE has high throughput and low latency, with an ultimate increase in network life compared with traditional healthcare systems.
    Matched MeSH terms: Confidentiality
  18. Daphne Clemente, Nurul Amiella Abdullah, ZurianahJusmin Jasmin, Muhammad Syafiq Abdullah, Helen Benedict Lasimbang, Wendy Diana Shoesmith, et al.
    MyJurnal
    Introduction: Continuous quality improvement of system is essential to improve efficiency of working environ- ment. Limited financial allocation in low resource setting results in the vicious circle of having inadequate money to purchase a new system and print paper documents that are required for the operation of clinic. A staff-initiated system improvement with the name of “PRW UMS Staff Portal” was attempted to break-free from the vicious cycle. Methods: An online system covering different aspects of routine clinical work of healthcare workers was created in Dec 2019 and implemented in Feb 2020 using Google SiteTM by the nurses of a local university community clinic, which included: submission of daily reports of nurses and assistant medical officers, submission of reports of all programmes conducted by the clinic, surveillance of health status of working staffs, announcement and request of working roster, archiving of documents, and medication inventory. The system could only be accessed using official working email for general documents while accesses to sensitive documents were restricted to relevant staffs to pro- tect privacy and confidentiality of information. Qualitative interviews were performed with all nursing staff involved. Results: Qualitative feeling of improvement in coordination of workflow was reported by all 23 staffs working in the clinic in view of the easy access of system using smartphone and computer at workstation. It also reduced the need to move away from the working station in order to access, replenish, or submit the printed documents and reports. Significant amount of paper and printing were saved monthly. Conclusions: Despite positive feedback from the staffs, the system requires further improvement in terms of function and security. Further evaluation on cost-efficiency of the system can be done to promote the system to other universities.

    Matched MeSH terms: Confidentiality
  19. Vijayananthan A, Nawawi O
    Biomed Imaging Interv J, 2008 Jan;4(1):e5.
    PMID: 21614316 MyJurnal DOI: 10.2349/biij.4.1.e5
    Good Clinical Practice (GCP) is an international ethical and scientific quality standard for the design, conduct, performance, monitoring, auditing, recording, analyses and reporting of clinical trials. It also serves to protect the rights, integrity and confidentiality of trial subjects. It is very important to understand the background of the formation of the ICH-GCP guidelines as this, in itself, explains the reasons and the need for doing so. In this paper, we address the historical background and the events that led up to the formation of these guidelines. Today, the ICH-GCP guidelines are used in clinical trials throughout the globe with the main aim of protecting and preserving human rights.
    Matched MeSH terms: Confidentiality
  20. Thuraisingham C, Nalliah S
    Aust Fam Physician, 2013 Apr;42(4):249-51.
    PMID: 23550254
    In many workplaces, employment is conditional on a successful pre-employment medical examination. This examination is usually conducted by a general practitioner on the employers' panel of approved clinics or by an in-house company doctor.
    Matched MeSH terms: Confidentiality/ethics
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