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A Secure Bluetooth Piconet using Non-Anonymous Group Keys (비익명성 그룹키를 이용한 안전한 블루투스 피코넷)

  • 서대희;이임영
    • Journal of KIISE:Information Networking
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    • v.30 no.2
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    • pp.222-232
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    • 2003
  • In accordance with the changes in the wireless communication environment, there has been a great need to satisfy the demand for diverse modes of information exchange. Various types of short-distance wireless communication technology have been developed and studied to meet this demand. Among them, Bluetooth which has recently been acclaimed as the standard for short-distance wireless communication, has been the focus of many such studies. However, Bluetooth has weaknesses in its suuity features when its in security services are applied to Home networks. The purpose of this study is to propose a safe Bluetooth scenario with an upgraded suity feature. This paper first reviews the general characteristics and security features of Bluetooth together with an analysis of its weaknesses, and presents the formation and maintenance process of Bluetooth piconet what is created by using ECDSA and group key in the ACL(Asynchronous Connection-less Link) connection through a safe Bluetooth inquiry process.

Spiritual Assessment Scale;Psychometric Evaluation of the Korean Version (한국어판 영성측정도구(SAS)의 신뢰도와 타당도 검증연구)

  • Oh, Pok-Ja;Chun, Hee-Sook;So, Woi-Sook
    • Asian Oncology Nursing
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    • v.1 no.2
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    • pp.168-179
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    • 2001
  • Spirituality has been found as a factor that may influence an individual's health and response to illness and dying. The purpose of this study was to assess the reliability and validity of the Korean version of the Howden's Spiritual Assessment Scale(SAS). The SAS was developed based on the attributes of spirituality and constructed with 28 items, 4 subscales. The translation involved four steps : translation into Korean, checking agreement, back translation into English, and arriving at a consensus. Psychometric evaluation was done on 222 nurses from five hospitals. All responses were voluntary and anonymous. The Cronbach's alpa coefficient for internal consistency was .928 for the total 28 items and .700${\sim}$.805 for subdimensions. Item- total correlations ranged from .36${\sim}$.68. Principal Component Factor Analysis with Varimax Rotation yielded four factors with four or more items each loading at .40 or higher. These factors explained 51.3% of the total variance. The items clustered in this study were almost identical with initial scale. There was positive correlation(r=.648, p=.0001) between SAS and Ellison & Paloutzian's Spiritual Wellbeing Scale and negative correlation(r=-.418, p=.000) with Pines' Burnout Scale which indicate convergent and discriminant validity. In conclusion, this tool can be effectively utilized for assessing spirituality in Korea.

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Juvenile Drinking and Dietary Habit in High School Students (남녀고등학생의 음주실태와 음주에 따른 식습관 비교)

  • 정은희
    • Korean Journal of Community Nutrition
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    • v.9 no.1
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    • pp.29-37
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    • 2004
  • This study was conducted to investigate the drinking status, drinking habit and dietary habit of high school students using anonymous questionnaires. DVS and skipped meal status were obtained by 24 hour recall method. Two hundreds ninety seven of 380 students (78.2%) have experienced the drinking even though 73.7% of them was not addictive. One hundred sixty one students (54.2%) initiated drinking in the middle school, mostly because of ‘peer pressure’ and ‘curiosity’. The most plausible reasons for drinking were ‘for mingling’ and ‘for stress reduction’, and they used to have desire for drinking mostly when felt ‘anger or frustration’ and ‘feel good’. Drinking behavior was significantly different in age of first smoking, drinking history, amount, reason for drinking and desire for drinking between male and female student. There was no significant difference in dietary habits between drinking students and non-drinking students. DVS, skipped meal status, snack preferences and food intake frequency also did not show the significant differences. However, considering that the drinking experience of high school students increased, and drinking experience of female students approached to that of male student, more attention needs to be given to juvenile drinking and its'prevention.

A Study on the User Preference Type of Avatar Character in the Web Environment (Web환경에 따른 아바타 캐릭터의 사용자 선호 Type에 관한 연구)

  • 강민수;조동민
    • Archives of design research
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    • v.15 no.4
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    • pp.121-128
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    • 2002
  • It makes an appearance that multi-media of Avatar, Cyber-Character, Cyber-Pet, Emoticon caused by Web-Environment advancement. Internet-User was fascinated by anonymous name of Web in the past but a desire goes on increasing to express oneself using the multi-media characters. Therefore, this study investigates that the feature of avatar character different from the general characters as making a survey of preference of avatar characters type in the various multi-media characters and presenting an efficient method at the making avatar characters. Consequently, the most efficient avatar characters type have to be concerned about functional factors rather than feature, feeling. exactly, it must be make conspicuous to personality of user and must make suitableness type of personality.

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Countermeasure by Cyber Infringement Accident Present Condition Analysis of Public and Private Section (공공 및 민간부문의 사이버침해사고 현황분석에 따른 대응방안)

  • Cho, Ho-Dae;Shin, Dong-Il
    • The Journal of the Korea Contents Association
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    • v.9 no.1
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    • pp.331-338
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    • 2009
  • We live was operates the life which is the Internet and became infra is very important. In order minimizes like this disfunction from will be applied the new order must take a position in cyber space. The cyber infringement most the information society brings about is serious concern middle one. The biggest thing is anonymous characteristic with cause of cyber crime. Also well cannot know becomes the cause where commits a crime that about cyber crime. Cyber crime the guilty conscience is thin. And the criminal who commits a cyber crime sense of insecurity is few. This paper which sees cyber infringement accident dividing came in public section, and analyzed presented a present condition and a confrontation plan.

Tobacco Use, Beliefs and Risk Awareness in University Students from 24 Low, Middle and Emerging Economy Countries

  • Peltzer, Karl;Pengpid, Supa
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.22
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    • pp.10033-10038
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    • 2014
  • The aim of this study was to determine the prevalence of tobacco use, beliefs and risk awareness and psychosocial correlates of tobacco use among university students in 24 low, middle and emerging economy countries. Using anonymous questionnaires, data were collected from 16953 undergraduate university students (mean age 20.9, SD=2.9) from 25 universities in 24 countries across Asia, Africa and the Americas. Results indicate that overall 13.3% of the university students were current tobacco users, 22.4% for men and 6.6% for women, ranging from 3.8% in Singapore to 32.5% in Cameroon. The risk awareness of the smoking lung cancer link was 83.6%, while the risk awareness of the smoking heart disease link was 46.5%. Multivariate logistic regression found that older age, male gender, having a wealthy family background, living in a low income country, residing off campus on their own, poor beliefs in the importance not to smoke, awareness of the smoking heart disease link, hit by a sexual partner, depressive symptoms, and substance use (binge drinking and illicit drug use) were associated with current tobacco use.

Information Sources for Serbian Women on Cervical Carcinoma Risk Factors

  • Dugandzija, Tihomir;Mikov, Marica Miladinov;Rajcevic, Smiljana;Kacavenda, Dragana;Malenkovic, Goran;Ristic, Mioljub
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.6
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    • pp.2931-2934
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    • 2012
  • Background: The epidemiological situation regarding cervical carcinoma in Serbia is rather unfavorable and one of contributing factors is the insufficient interest of women concerning the risk factors responsible for occurrence of this disease. The aim of this study was to determine the sources of relevant information for women Methods: An anonymous questionnaire was used for questioning of patients, students and women undergoing systematic examinations. There were 600 women in total in 2006, 2009 and 2010, and the data were statistically processed by the ${\chi}^2$ test with Yates correction and the Fisher test. Results: When observed for certain groups of tested women, and summed up for all three periods, there was a statistically significant difference for the answer "without any knowledge" (p=0.0001). When observed for certain years and summed up for all three tested groups, there was a statistically significant difference in answers regarding the source of information, the "doctor" (p=0.0011), "media" (p=0.0349) and "encyclopedia-internet" (p=0.0136). Conclusion: The media are a dominant source of information for women on risk factors for cervical cancer. The significance of the Internet increased during the three observed periods, while the students considered themselves least informed of all concerning risk factors.

A Study on the Countermeasure to Deal with Cyber Terrorism (사이버테러리즘의 대응방안에 관한 연구)

  • Oh Tae-Kon
    • The Journal of the Korea Contents Association
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    • v.5 no.3
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    • pp.93-101
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    • 2005
  • These days, modern society is facing a 'turning point of paradigm' from industrial society to knowledge and information society. It indicates an entry to the high-speed network society centering on knowledge. Specifically, Korea has invested enormously to If Industry and finally other advanced countries are eager to export technologies of our country through benchmarking. However, because of our growth-oriented policy, Korea is not very good at dealing with the dysfunctions of information-centered society, and one of the representative problems is cyber-terrorism. Cyber terrorism which anonymous actors do to the uncertain number of people is one of the new types of terrorism. This study aims at political and legal speculations on cyber terrorism for protection of contents and find its countermeasures.

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Saudi Aramco's Global Expansion Strategy: Evidence from Korea

  • PARK, Young-Eun
    • Journal of Distribution Science
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    • v.18 no.5
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    • pp.71-81
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    • 2020
  • Purpose: This case study illustrates the successful entry of Saudi Aramco in the Korean market and how it grows to become one of the world's largest integrated energy enterprises. Research design, data and methodology: This case investigates diverse secondary sources to examine the entry strategy of Aramco in Korea, such as several interviews including public and anonymous dialogues, periodicals, dispatches (i.e. news articles and magazines), annual reports, industrial reports, and others. Results: The main concern for the international strategic approaching of Saudi Aramco is to enter into Korean market by joint venture with SsangYong Oil (today's S-Oil Corporation) in 1991 and finally, ending by Acquisition of S-Oil in 2015. This acquisition of local No.3 company, S-Oil, in Korea is the successful case in Asian Markets overcoming liability of foreignness. Moreover, Saudi Aramco's global distribution strategy through localization in the Korean market is appropriate given the market conditions, timing, effectiveness, and efficiency by sharing their resources and collaborating. Conclusions: It would be valuable, unique, and real story to analyze global leading company's entry and globalization strategy in overseas market. In addition, this study provides decision-makers with a significant and more strategic implication for the overseas expansion of businesses.

Knowledge, Attitudes and Practice of Testicular Self-examination among Male University Students from Bangladesh, Madagascar, Singapore, South Africa and Turkey

  • Peltzer, Karl;Pengpid, Supa
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.11
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    • pp.4741-4743
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    • 2015
  • The aim of this study was to investigate the knowledge, attitude and practice of testicular self-examination (TSE) among male university students from low income (Bangladesh, Madagascar), middle income (South Africa, Turkey) and emerging economy (Singapore) countries. Using anonymous questionnaires, data were collected from 2,061 male undergraduate university students aged 16-30 (mean age 21.4, SD=2.4) from 5 universities in 5 countries across Asia and Africa. Overall, 17.6% of the male students indicated that they knew how to perform TSE; this knowledge proportion was above 20% in Bangladesh and Singapore, while it was the lowest (12.2%) in Madagascar. Among all men, 86.4% had never practiced TSE in the past 12 months, 7.1% 1-2 times, 3.5% 3-10 times, and monthly TSE was 3.1%. The proportion of past 12 month TSE was the highest (17.6%) among male university students in South Africa and the lowest (7.3%) among students in Singapore. Logistic regression found that TSE importance or positive attitude was highly associated with TSE practice. TSE practices were found to be inadequate and efforts should be made to develop programmes that can increase knowledge related to testicular cancer as well as the practice of testicular self-examination.