• Convergence Security Journal
• /
• v.23 no.4
• /
• pp.43-52
• /
• 2023

Many businesses and organizations use smartcard-based user authentication for remote access. In the meantime, through various studies, dynamic ID-based remote user authentication protocols for distributed multi-server environments have been proposed to protect the connection between users and servers. Among them, Qiu et al. proposed an efficient smart card-based remote user authentication system that provides mutual authentication and key agreement, user anonymity, and resistance to various types of attacks. Later, Andola et al. found various vulnerabilities in the authentication scheme proposed by Qiu et al., and overcame the flaws in their authentication scheme, and whenever the user wants to log in to the server, the user ID is dynamically changed before logging in. An improved authentication protocol is proposed. In this paper, by analyzing the operation process and vulnerabilities of the protocol proposed by Andola et al., it was revealed that the protocol proposed by Andola et al. was vulnerable to offline smart card attack, dos attack, lack of perfect forward secrecy, and session key attack.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.18 no.1
• /
• pp.155-161
• /
• 2014

This study presents the real-time emotion image contents player to induce the user's emotion efficiently. The emotion image contents player was designed to efficiently induce by giving a change in the color, brightness, saturation of image contents corresponded to the user's emotion. In the emotion recognition module, physiological signal of pulse, skin temperature, skin resistance which based on autonomic nervous system were used. The emotion recognition part used physiological signal of pulse, skin temperature, skin resistance based on autonomic nervous system. The image as emotional contents was used with the 9 kinds emotion area classified in international affective picture system(IAPS). As experimental results, the use's emotion that match the image's emotion with the emotion image contents player was derived 10% more accurately. The emotion contents player is expected to increase emotional feeling between users's emotion and contents emotion duo to the real-time emotion reflection.

• Journal of Digital Convergence
• /
• v.13 no.8
• /
• pp.315-320
• /
• 2015

User Authentication in Online service is essential for accurate and safe service. For this user authentication, One Time Password(OTP) is frequently used. To satisfy one-time-use characteristic of OTP, Offset information to generate OTP or final OTP value get generated through OTP generator or security card which could be lost. In this study, OTP generation method that bypasses OTP generator or security card by using health information collected from u-Health care system is proposed. Suggestion is that health information collected through wearable devices get utilized to offset information that are applied in OTP generations. OTP generated using suggested methods showed similar results than current OTP generation methods in the collision resistance test which tests how often it generate same authentication numbers, this implies that new proposed method can be applied to various on-line services.

• The Journal of The Korea Institute of Intelligent Transport Systems
• /
• v.16 no.1
• /
• pp.78-89
• /
• 2017

This study derived the algorithm of a public transportation route search that adds safety and environmental costs according to user preference. As the means of an algorithm application and evaluation, Macro Simulation, VISUM was conducted for an analysis. The route using the subway, which is relatively low in safety and environment resistance value was preferred, and it was analyzed to select the safe and environmental route even though it detours. This study can be applicable when to verify the algorithm of route search considering safety and environment, and when introducing the algorithm of route search according to user preference in the smart-phone application in the future, it can provide users with very useful information by choosing a route as for safety and environment, and through this, the quality of user-friendly information provision can be promoted.

• International Commerce and Information Review
• /
• v.16 no.4
• /
• pp.35-54
• /
• 2014

Since smart phone users are continually increasing, smart phone based mobile banking users are increasing too. Therefore this study analyzes behavior of smart phone based mobile banking users. This study surveyed 400 people aged 10 to 50. The survey shows social effect influences convenience of smart-phone based mobile banking, perceived danger, and perceived security. Also,'promptness', the element of convenience has influence on trust. As perceived danger was higher, it was more vulnerable to resistance. The intention of smart-phone based mobile banking was influenced by trust and resistance. Specifically rising of intention was more influenced by lifting trust than lowering resistance.

• Journal of Distribution Science
• /
• v.21 no.2
• /
• pp.21-34
• /
• 2023

Purpose: The goal of this study is to examine what makes young people more likely to use digital banking. This is because digital banking services and their distribution channels are technologically advanced, which can be a double-edged sword between ease of use and resistance to technology. Research design, data and methodology: This study included 320 participants from generation Z in Jakarta who use digital bank and used a quantitative method with PLS-SEM. Results: This study explains how, in addition to usefulness, costs, and self-efficacy, resistance to technology has a direct effect on usage attitudes. Meanwhile, if the attitude of use is preceded by aspects of usefulness, self-efficacy, and awareness, resistance to technology will be felt indirectly. Conclusions: This demonstrated that most discussed factors, such as Ease-of-Use and security of use, are important for Generation Z users but no longer a major consideration in accepting digital banking. Aside from being more open to the use of technology in digital banks, Generation Z also desires a balance of technology services and benefits. The limitations of this study are that it excludes social variables, uses certain generations, and limits the research area to one large city, which can be expanded in future studies.

• Journal of Korea Society of Industrial Information Systems
• /
• v.29 no.2
• /
• pp.101-117
• /
• 2024

The purpose of this study is to consider the characteristics perceived by users who utilize MyData services in the financial sector. It aims to examine how these factors influence users' understanding for sustained usage and their resistance to innovation. The research seeks to explore the relationship between users' awareness of characteristics and its impact on both enhancing comprehension for continued usage and addressing users' resistance to innovation. Utilizing a specialized survey agency, we examined the relative effects of innovation resistance factors, such as relative advantage, perceived risks, complexity, clarity and perceived ease of use on MyData service users. Furthermore, this research focuses on employing empirical analysis to validate the relationships between these factors through the survey. The findings of this study suggest that MyData service should dedicate ongoing efforts to minimize user resistance to service utilization. Specifically, it was revealed that among the innovation resistance factors, perceived ease of use, relative advantage, perceived risk, and complexity exert influence in that order.

• Journal of Navigation and Port Research
• /
• v.36 no.8
• /
• pp.607-612
• /
• 2012

In this paper, calculation methods of resistance of the ship to be towed and towline tension are discussed. When the vessel is fallen into dead ship condition then appropriate towing force have to be estimated to move the vessel from accident place to safe area. In this research, resistance of the ship to be towed and the tow hawser were considered to estimate total towline tension. Polynomial interpolation method is also applied to estimate additional hydrodynamic resistance of towline. Finally, UI program to calculate the resistance and total towline tension is developed. The developed program based on the research results is effective and convenient to use.

• 제어로봇시스템학회:학술대회논문집
• /
• 2001.10a
• /
• pp.97.5-97
• /
• 2001

This paper presents development of a user-friendly automatic control system for ESR(Electro-Slag Remelting or Refining) process. It is a second-phase refining one, commonly applied to production of high-purity specialty steel. A primarily refined castingot acts as a consumable electrode and melts by the electric resistance heat generated when high current is induced through a slag bath. The quality of product is evaluated by its chemical composition, purity, micro-structure, uniformity, mechanical property, etc. To meet the standards, above all things, the process should be kept sound and the melt rate should track the optimum profile irrespective of environment variations. Current ESR system is manually operated ...

• Journal of the Korean Society for Precision Engineering
• /
• v.20 no.8
• /
• pp.166-174
• /
• 2003

Hydrostatic bearings are widely used in precision machines due to their high motion guide accuracy, low friction and high load carrying capacity. It is very useful to estimate the moving characteristics of hydrostatic bearings in the design stage. A new method is suggested for the analysis of fluid film in hydrostatic bearings. A combined mesh of 8 node solid elements with negligible deformation resistance and spring-dashpot elements is used in conjunction with the user subroutine of ABAQUS to represent the fluid film. The mesh can be used to capture the deformation of the bearing structure as well as the varying properties of fluid film. Analysis results from the finite element model are compared with theoretical solutions, results from FLUENT analysis and some previous works. With this method, static and dynamic analyses of the system containing the bearings can be performed efficiently.