• The Journal of Society for e-Business Studies
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• v.6 no.2
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• pp.159-166
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• 2001

EC(Electronic Commerce) is increasing with high speed based on the expansion of Internet. EC which is done through Internet has strong point like independence from time and space, On the contrary, it also has weak point like security problem because anybody can access easily to the system due to open network attribute of Internet. Therefore, we need the solutions that protect the security problem for safe and useful U activity, One of these solutions is the implementation of strong cipher algorithm. NPC(Non-Polynomial Complete) cipher algorithm proposed in this paper is good for the security and it overcome the limit of current 64bits cipher algorithm using 256bits key for input output and encryption key, Moreover, it is designed for the increase of calculation complexity and probability calculation by adapting more complex design for subkey generation regarded as one of important element effected to encryption.

• 한국디지털정책학회:학술대회논문집
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• 2003.12a
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• pp.161-170
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• 2003

Knowledge management system building knowledge acquisition, knowledge share, and knowledge maintenance for the member of corporation is expanded throughout whole industry to cope with rapid business environment. Electronic document basing knowledge management system can copy, print, and transfer knowledge to another party, so it is being regarded as a essential infrastructure to share knowledge. However, considering most of information leakage is sprung up by insider of organization, it is considered to provide countermeasure to protect illegal use from information leakage. The purpose of this paper is to establish digital information security system through design of document and manage digital information assets safely through electronic document security system protecting illegal leakage of digital information assets.

• Proceedings of the IEEK Conference
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• 2006.06a
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• pp.201-202
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• 2006

In this paper, we achieved software and hardware implementation of SHA-1 hash function for sensor network. We implemented the software to be compatible with TinySec. In hardware design, we optimized operation logics for small area of hardware and minimized data transitions of register memory for low power design. Designed the software and hardware is verified on commercial sensor motes and our secure motes respectively.

• Journal of the Semiconductor & Display Technology
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• v.7 no.1
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• pp.59-65
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• 2008

There are no products, systems to manage health and detect security for infant, the old and the weak in Korea. Recently, the concerns of parents are increasing more about all of children(baby, infant, etc) because rate of birth is decreasing gradually. Also, the average span of human life is on an increasing trend according to well-being and evolution of medical treatment. Therefore, this treatise analyzed problems in managing and following-up infant, the old and the weak at present. By using TRIZ to solve problems, we devised new conceptional ideas, detail designs to manage health, detect security, cope with correspondences for them and developed the prototype and tested it. Excellent performances are proved through various field test.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• v.9 no.1
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• pp.328-331
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• 2005

In this paper we review the security and privacy problems in the RFID system and briefly describe the research topics to solve these problem. And, we design and implement the tag authentication system to authenticate tags in the RFID system which is composed of PC, reader and passive type tag with low power 8 bit microprocessor.

• The Journal of Information Systems
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• v.24 no.2
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• pp.73-96
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• 2015

Purpose Information security industry is rapidly growing, but has been confronted with many challenges in a business environment. One of them is the imbalance between supply and demand of information security manpower, which has caused an insecure market situation. Therefore, this study has derived factors of promoting and hindering information security manpower from governance, academics, corporations, and workforce perspectives, and has analyzed a sequence of cause and effect of each factor. Design/methodology/approach This study is an exploratory research based on the interviews. The causal loop diagram (CLD) was developed to deduce key issues and propose alternatives. Findings The result of this study is expected to help the development of information security manpower in Korea, by minimizing the potential negative effects as well as maximizing the positive effects. This study found out the dynamic causes and effects of the security manpower system in each stakeholder's perspective. The cause-and-effect relationships between the stakeholders will be able to contribute to solve the imbalance of supply and demand in security manpower system.

• Convergence Security Journal
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• v.14 no.3_1
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• pp.11-19
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• 2014

As both medical and IT technologies advance, convergent medical technologies such as implantable medical devices are receiving a lot of attentions from the research and medical appliance market. On the other hand, such a new medical service is facing several new security threats including patient privacy breach since the service is based on the wireless communication. Especially, the new security threat could induce the patient's life threatening accident, so that more secure measures should be provided. In this paper, a variety of security threats associated with the implantable medical devices are pinpointed and a new security mechanism against such threats is proposed.

• Journal of the Korea Safety Management & Science
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• v.9 no.3
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• pp.103-109
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• 2007

Payment and security requirement are playing an increasingly critical role in RFID system, allegedly the core of the ubiquitous, especially in logistics. Therefore, security technology has been playing essential role gradually unlike the past when only the perception of equipment was considered important technology. The current encoding system allows the access only to the user who has the secret key. Many encoding algorithm has been studied to ensure the security of secret key. Security protocol is the most typical way to authorize appropriate user perception by using the data and secret key to proceed the encoding and transmit it to the system in order to confirm the user. However, RFID system which transmits more than dozens of data per second cannot be used if the algorithm and protocol of the existing wired system are used because the performance will degrade as a consequence. Security protocol needs to be designed in consideration of property of RFID and hardware. In this paper, a protocol was designed using SNEP(Sensor Network Encryption Protocol), the security protocol used for the sensor similar to RFID- not the current system used in wired environment- and ECC (Elliptic Curve Cryptography: oval curve encoding), the encoding algorithm.

• The Transactions of the Korean Institute of Electrical Engineers P
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• v.66 no.4
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• pp.252-257
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• 2017

In this paper for developing and implementing the HD level triple streaming hybrid security camera which output the three type of video outputs(HD-SDI, EX-SDI, Analog). We design the hardware and program the firmware supporting the main and sub functions. We use MN34229PL as image sensor, EN778, EN331 as image processor, KA909A as reset, iris, day&night function part, A3901SEJTR-T as zoom/focus control part. We request the performance test of developed security camera at the broadcasting and communication fusion testing department of TTA (Telecommunication Technology Association). We can get the three outputs (HD-SDI, EX-SDI, Analog) from the developed security camera, get the world best level at the jitter and eye pattern amplitude value and exceed the world best level at the signal/noise ratio, and minium illumination, power consumption part. The HD level triple streaming hybrid security camera in this paper will be widely used at the security camera because of the better performance and function.

• Journal of the Korea Computer Industry Society
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• v.3 no.9
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• pp.1315-1328
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• 2002

Recently there has been increasing demand on developing methodologies and tools for measuring the information security level of organizations for the efficient security management, as the growth of security incidents. However, most methodologies from foreign countries are not realistic in constructing the checklists, moreover their tools provide neither the ease of use nor the inexpensiveness, and most domestic works are not properly considering the characteristics of the organizations. In this study, based on the recently developed standard for information security management, an information security levelling tool is designed and implemented which can be used before building an information security management system while considering the characteristics of organizations more efficiently. The efficiency comes from applying multiple variable weights for security levelling according to the characteristics of organizations.