• Informatization Policy
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• v.23 no.1
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• pp.56-73
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• 2016

The Internet of Things (IoT) is expected to provide new business opportunities by connecting devices, persons, and their data. However, the value proposed by IoT cannot be realized without trust. As IoT premises on the seamless connections, it should guarantee trust among the connected persons and things. However, there is lack of relevant discussion on how to achieve trustworthy connections and interactions because most of academic studies have mainly focused on the development of IoT platforms and applications. To fill the gaps, recent EU-funded projects such as uTRUSTit, ABC4Trust, Inter-Trust, COMPOSE, and SMARTIE have been conducted under the FP7-ICT Framework Programme. This paper presents and discusses each project's purpose and approach. Although their approaches are somewhat different from each other, all of them dedicate to achieving both privacy and security by providing the trustworthy connections. It seems to be clear that Korea also needs more academic and practical contribution in terms of researches, to implement "trust"among connected things, which will eventually satisfy what really IoT is expected for.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.20 no.4
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• pp.73-79
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• 2020

Due to the rapidly ageing population and low birth rates, most countries have faced with the problems of an ageing population. As a result, research into aging and the means to support an aging population has therefore become a priority for many governments around the world. Ambient Assisted Living(AAL) approach is the way to guarantee better life conditions for the aged and for monitoring their health conditions by the development of innovative technologies and services. AAL technologies can provide more safety for the elderly, offering emergency response mechanisms and fall detection solutions. Since the information transmitted in AAL systems is very personal, however, the security and privacy of such data are becoming important issues that must be dealt with. In this paper, we propose a Chameleon hash-based secure authentication protocol for AAL systems. The proposed authentication protocol not only supports several important security requirements needed by the AAL systems, but can also withstand various types of attacks. In addition, the security analysis results show that the proposed authentication protocol is more efficient and secure than the existing authentication protocols.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.49 no.1
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• pp.81-87
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• 2012

The current defacing method for keeping an anonymity of brain images damages the integrity of a precise brain analysis due to over removal, although it maintains the patients' privacy. A novel method has been developed to create an anonymous face model while keeping the voxel values of an image exactly the same as that of the original one. The method contains two steps: construction of a mockup brain template from ten normalized brain images and a substitution of the mockup brain to the brain image. A level set segmentation algorithm is applied to segment a scalp-skull apart from the whole brain volume. The segmented mockup brain is coregistered and normalized to the subject brain image to create an anonymous face model. The validity of this modification is tested through comparing the intensity of voxels inside a brain area from the mockup brain with the original brain image. The result shows that the intensity of voxels inside from the mockup brain is same as ones from an original brain image, while its anonymity is guaranteed.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.44 no.6
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• pp.16-23
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• 2007

Changeable biometrics has been developed as a solution to problem of enhancing security and privacy. The idea is to transform a biometric signal or feature into a new one for the purposes of enrollment and matching. In this paper, we propose a changeable biometric system that can be applied to appearance based face recognition system. In the first step when using feature extraction, ICA(Independent Component Analysis) coefficient vectors extracted from an input face image are replaced randomly using their mean and variation. The transformed vectors by replacement are scrambled randomly and a new transformed face coefficient vector (transformed template) is generated by combination of the two transformed vectors. When this transformed template is compromised, it is replaced with new random numbers and a new scrambling rule. Because e transformed template is generated by e addition of two vectors, e original ICA coefficients could not be easily recovered from the transformed coefficients.

• Journal of Korean Academy of Nursing
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• v.24 no.2
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• pp.157-174
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• 1994

Women’s experience of abortion are not only widespread but also significant event in their lives. But this experience has not been a concern for professional care by health care providers, especially nurses. As professional nurses should have holistic approaches to clients, need to understand the lived experience of abortion from women’s perspectives. These Nurses must identify unique means for improving the quality of life of women. This study identified the meaning and structure of the lived experience of abortion. The participants were residents of Seoul and Kwang ju who were recruited through personal recommendation. Colaizzi’s method was used for the phenomenological analysis. The research question was aimed at revealing the covert meaning of abortion. The 14 women who had a spontaneous abortion and /or an artificial abortion and who argeed to participate in the study were informed of the purpose of the study, the possible risks and benefits of participation, the data generation method and they were assured of privacy and confidentiality. The investigator conducted in-depth unstructured interviews which were audiotaped with the permission of the participants. The investigator read the data repeatdly to identify and categorize themes and basic structural elements. Eight themes of abortion as experienced by these participants were : 1) complicated feelings about the anticipated abortion 2) feelings of fear and anxiety about the operation and complications 3) grieving related loss and injury 4) feelings of lonliness in perceiving no supportive person, 5) attributing the cause of the abortion to siginificant others or to self, 6) guilt feelings and resentment, 7) vacillating between regretting and not regretting, 8) struggling to a responsible person. Five basic structures identified were : 1) Complicated feelings 2) Feelings of loss and need for caring 3) Attributings to cause to significant others 4) Paradoxical emotion 5) Struggling to be a responsible being The significes of this study for nursing are : 1) It enables nurses and other health care providers understand more clearly the lived experience of abortion 2) It provides information which can be used in for women who experience abortion.

• Journal of the Korean Institute of Intelligent Systems
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• v.23 no.2
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• pp.113-119
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• 2013

Face recognition techniques have been widely used for various areas including criminal identification due to their capability of easy implementing and user friendly interface. However, they have some drawbacks related to individual's privacy in case that his or her face information is divulged to illegal users. So, this paper proposed a novel method for protecting face template based on the real fuzzy vault. This proposed method has some advantages of regenerating a new face template when a registered face template is disclosed. Through implementing and testing the proposed method, we showed its validity and usefulness.

• Journal of The Korea Institute of Healthcare Architecture
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• v.16 no.3
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• pp.37-48
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• 2010

This study analyzes the present condition of the elements of a healing environment of the waiting rooms in outpatient clinics of children' hospitals (3 hospitals in Seoul) so as to propose a design to build a healing environment within the children' hospital. And analyzing the importance, satisfaction and preference of the healing environment in the waiting rooms, this paper has come to the following conclusions: 1)The study shows that the space structure of outpatient clinics in children' hospitals are composed of 1 story or 2 stories and designed in a duplication design or a dispersed alcove design. 2)The waiting room of the SC Hospital, with an area of 66.56$m^2$, and the waiting room of the SU Hospital, with an area of 38.78$m^2$ received the highest score for its space. 3)As most patients visit the hospital with their guardian, the waiting room should also be someplace families can rest and share information with others. 4)It is essential to build an environment that eliminates stress elements that patients may come to face by minimizing noise and elements that obstruct the view for mental stability. 5)The results show that those who took part in the survey preferred the following, respectively, healing environment design for the waiting room in the outpatient clinic at children' hospital: Pleasantness>Easiness in finding one' destination>Artificial materials>Natural materials>Environment like that at home>Co-promotion spaces>Space that supports the patients'activities>Openness>Sociality>Safety/Security>Approachability and Privacy. The results also show that healing conditions respect these preferences.

• IEIE Transactions on Smart Processing and Computing
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• v.2 no.3
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• pp.168-175
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• 2013

Key escrow is a default property that is inherent in identity-based cryptography, where a curious private key generator (PKG) can derive a secret value shared by communicating entities in its domain. Therefore, a dishonest PKG can encrypt and decrypt ciphers or can carry out any attack on the communicating parties. Of course, the escrow property is not completely unwanted but is acceptable in other particular applications. On the other hand, in more civil applications, this key escrow property is undesirable and needs to be removed to provide maximum communication privacy. Therefore, this paper presents an escrow-free identity-based key agreement protocol that is also applicable even in a distinct PKG condition that does not use pairings. The proposed protocol has comparable computational and communicational performance to many other protocols with similar security attributes, of which their security is based on costly bilinear pairings. The protocol's notion was inspired by McCullagh et al. and Chen-Kudla, in regard to escrow-free and multi-PKG key agreement ideas. In particular, the scheme captures perfect forward secrecy and key compromise impersonation resilience, which were lacking in McCullagh et al.'s study, as well as all other desirable security attributes, such as known key secrecy, unknown key-share resilience and no-key control. The merit in the proposed protocol is the achievement of all required security requirements with a relatively lower computational overhead than many other protocols because it precludes pairings.

• Convergence Security Journal
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• v.13 no.4
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• pp.3-10
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• 2013

Cyber attacks are threats to national security. Today, cybersecurity threats have various types, the theft or spread of privacy and national secret, the realization of direct attacks to infrastructure and the hacktivism with political or social objectives. Furthermore, There are special situations in South Korea because of North Korea's threats. Thus, It is necessary to handle cybersecurity as a kind of national security problem. It is a time to identify problems of governance system in cybersecurity and to improve related Acts and subordinate statutes. There are several tasks for legal improvement for governance system in cybersecurity. They are improving legal bases for the roles of the relevant authorities in cybersecurity, consolidating national joint response to cyber accidents, establishing and vitalizing information sharing system, constructing foundation of cybersecurity through industry promotion and manpower development, and acquiring defensive tools by enhancement research an development. In order to address these challenges, it is necessary to pay much attention to enactment and to revision laws and to practice legislative procedure.

• Journal of Information Technology Services
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• v.15 no.4
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• pp.25-39
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• 2016

The drone is an unmanned aerial vehicle which has no human pilot. Drones can be classified into military drones, commercial drones, and personal drones by usage. Also, drones can be classified from large-sized to nano-sized drone by size and autonomous, remote controlled drone by control type. Especially, military drones can be classified into low-altitude drones, medium-altitude, and high-altitude drones by altitude. Recently, the drone industry is one of the fast growing industries in the world. As drone technologies have become more advanced and cost-effective, Korean government has set its goal to become a top-level country in drone business. However, the government's strict regulation for drone operations is one of the biggest hurdles for the development of the related technologies in Korea and other countries. For example, critical problems for drone delivery can be classified into technical issues and institutional issues. Technical issues include durability, conditional awareness, grasp and release mechanisms, collision avoidance systems, drone operating system. Institutional issues include pilot and operator licensing, privacy rules, noise guidelines, security rules, education for drone police. This study analyzes the trends of the drone industry from the viewpoint of technology and regulation. Also, we define the business areas of drone utilization. Especially, the drone business types or models for public sector are proposed. Drone services or functions promoting public interests need to be aligned with the business reference model of Korean government. To define ten types of drone uses for public sector, we combine the business types of government with the future uses of drones that are proposed by futurists and business analysts. Future uses of drones can be divided into three sectors or services. First, drone services for public or military sectors include early warning systems, emergency services, news reporting, police drones, library drones, healthcare drones, travel drones. Second, drone services for commercial or industrial services include parcel delivery drones, gaming drones, sporting drones, farming and agriculture drones, ranching drones, robotic arm drones. Third, drone services for household sector include smart home drones.