초등학생의 건강증진행위 실천에 관한 연구

이화연(Lee, Hwa Yean),김정남(Kim, Chung Nam) 한국보건간호학회 2004 韓國保健看護學會誌 Vol.18 No.1

양자 키분배 프로토콜

이화연(Hwa-Yean Lee),조규형(Kyu-Hyung Cho),양형진(Hyungjin Yang) 한국정보보호학회 2002 情報保護學會誌 Vol.12 No.5

PRECEDE-PROCEDE 모형을 활용한 실업계 고등학생의 건강증진 프로그램 개발

이화연(Lee, Hwa-Yean),김정남(Kim, Chungnam) 계명대학교 간호과학연구소 2010 계명간호과학 Vol.14 No.1

Purpose: The purpose of this study was to develop the tailored health promotion program for vocational high school students through PRECEDE-PROCEDE process. Method: The data were collected from August 23rd to December 30th, 2004. The subjects of this study were the 10th graders in the D vocational high school in D city. On diagnostic stage, the total number(297) of 10th graders were participated. Result: The tailored health promotion program for vocational high school students was developed based on the diagnostic result using PRECEDE-PROCEED model (social, epidemiological, behavioral, environmental, educational, ecological and administrative, policy assessment). The contents of health education program were included growth and development of adolescence, improvement of self-esteem and communication skill, mental health for adolescent, family health, physical health for adolescent, prevention of school violence and ostracism, pregnancy and contraception, prevention of sex related problem and sexual violence, alcohol and health, understand human mind and control self anger, safety and accident prevention, computer game addiction and VDT syndrome, and stress management. The contents of smoking cessation program were included smoking cessation classes(preparation phase), art therapy(drawing poster, making clay ceramics, and making collagist), watching smoking cessation videos(resolution phase), experimental test by SMOKYⓇ doll and gold fish, discussion class after experimental test, a mock trial on smoking, role-playing, make a written pledge and swear on no smoking(practice phase). The exercise program was included jumping rope exercise and physical fitness exercise by using instruments which located in school physical training center. In addition, the students were required to perform a 30 minutes rope jumping exercise everyday at home. The health-counseling program was conducted based on self reported health behavior practice checklist. Positive reinforcement and encouragement counseling approach was used. When the students fail the practice, discussed the reasons and found the way how to solve the problems. This counseling program included the participation of the parents through the use of notes and letters sent to their homes. Conclusion: In conclusion, the health promotion program which developed by the researcher for vocational high school students was expected as an effective, working, and easily applicable intervention program for improving the vocational high school students' self-efficacy, self-esteem, health knowledge, health promoting behavior, health status, and life satisfaction level, and reducing harmful-unhealthy behavior, physical health problem, and mental health problem.

인증된 양자 키 분배 프로토콜

이화연(Hwa-Yean Lee),홍창호(Chang-ho Hong),이덕진,양형진(Hyung-jin Yang),임종인(Jong-in Lim),Dong-Hoon Lee 한국정보보호학회 2004 정보보호학회논문지 Vol.14 No.2

본 논문에서는 Greenberger-Horne-Zeilinger(GHZ) 상태를 이용하여 키 분배와 인증을 동시에 수행할 수 있는 인증된 양자 키 분배 프로토콜을 제안한다. 이 프로토콜에서 공유되는 키는 정직한 중재자에게는 노출되지 않으며 완전한 안전성이 보장된다. 제안된 양자 키 분배 프로토콜은 기존의 양자 키 분배 프로토콜이 지니는 안전성을 그대로 확보하면서 기존의 정보를 이용하여 상대방에 대한 신뢰를 추가로 제공한다는 장점을 가지며, 실험적으로도 기본적인 양자연산만을 이용하기 때문에 쉽게 구현될 수 있을 것이다. We propose a new authenticated quantum key distribution protocol. Using Greenberger-Horne-Zeilinger(GHZ) state, the users of our protocol can authenticate each other and share a secret key. In our protocol, the shared key is not revealed to the honest arbitrator, which provides the additional secrecy. Our protocol not only guarantees secrecy as the other quantum key distribution protocols, but also the users authenticates each other. In practice, our new protocol can be easily implemented because it only uses basic quantum operations.

일회용 ID 기반 양자 인증 및 키 분배 프로토콜

이화연(Hwa-Yean Lee),홍창호(Chang-Ho Hong),양형진(Hyung-Jin Yang),임종인(Jong-in Lim) 한국정보보호학회 2005 정보보호학회논문지 Vol.15 No.2

본 논문에서는 일방향 해쉬함수를 이용한 일회용 ID기반 양자 키 분배 프로토콜을 제안한다. 이 프로토콜은 일회용 ID를 이용하여 지정된 사용자들이 중재자와 상대방을 인증할 수 있도록 하였으며, 인증 후 남은 GHZ 상태를 이용하여 양자키를 공유할 수 있도록 고안되었다. 인증과 키 분배 과정에 중재자의 도움이 필요하지만, 인증 이후 분배되는 키에 대한 정보를 중재자에게도 노출시키지 않는다는 점에서 기존에 제안된 프로토콜과 비교하여 키의 안전성을 높였다. We propose a Quantum Authentication and Key distribution protocol based on one-time ID using one-way Hash function. The designated users can authenticate each other and the arbitrator using their one-time ID and distribute a quantum secret key using remained GHZ states after authentication procedure. Though the help of the arbitrator is needed in the process of authentication and key distribution, our protocol prevents the arbitrator from finding out the shared secret key even if the arbitrator becomes an active attacker. Unconditional security can be proved in our protocol as the other QKD protocols.

Entanglement Swapping을 이용한 안전한 직접 통신 프로토콜

홍창호(Chang-ho Hong),이화연(Hwa-yean Lee),김지인(Ji-in Kim),임종인(Jong-in Lim),양형진(Hyung-jin Yang) 한국정보보호학회 2006 정보보호학회논문지 Vol.16 No.1

본 논문에서는 entanglement swapping을 이용하여 직접적인 통신이 가능한 통신 프로토콜을 제안한다. 이 프로토콜은 암호화된 메시지가 공개 채널 상으로 전달되지 않음으로 도청자로부터의 안전성을 높였다. 효율성에 있어서도 한 세션에 두 비트의 고전 정보가 전달되므로 Bostrom과 Felbinger에 의해 제시된 ping-pong 프로토콜 보다 두배의 효율성 향상을 가져왔다. 본 프로토콜에서 사용하고 있는 검증 모드는 75%의 확률로 도청자의 존재를 확인할 수 있기 때문에 충분한 검증 절차를 거치면 이론적으로 도청자로부터 거의 완벽한 안전성을 보장 받을 수 있다. We propose a direct communication protocol using entanglement swapping. The safety of this protocol is guaranteed by the basic properties of entanglement swapping. This protocol is efficient to transmit two classical bits of information per one session. This efficiency is better than that of ping-pong protocol suggested by Bostrom and Felbinger. Even if an eavesdropper intervenes in midway, the eavesdropper will be detected with the probability of 75% in the verification process of one bit. Therefore the perfect security is guaranteed if we use enough amount of bits for the verification process.

GHZ 상태 교환을 이용한 인증된 양자 비밀 공유

이덕진(Duk-jin Lee),이화연(Hwa-yean Lee),홍창호(Chang-ho Hong),임종인(Jong-in Lim),양형진(Hyoung-jin Yang) 한국정보보호학회 2006 정보보호학회논문지 Vol.16 No.6

본 논문에서는 GHZ swapping을 이용하여 구성원 수의 절반보다 많은 인증된 사용자가 모이면 비밀을 복원할 수 있는 양자 비밀 공유 프로토콜을 제안한다. 메시지를 분배하는 중재자와 복원하려는 구성원들 사이에 미리 공유된 ID를 이용하여 중재자는 각 구성원을 인증할 수 있으며, 인증 받은 구성원들은 GHZ swapping에 의해 양자비밀공유가 가능해진다. 또한 구성원의 수를 임의의 n명으로 확장하기가 용이하다는 측면에서 고전적인 비밀 공유에 근접한 양자 비밀 공유프로토콜이다. We propose a quantum secret sharing protocol which can authenticate more than half of members using GHZ state swapping. The Trusted Third Party, Trent can authenticate all members using previously shared ID among Trent distributing his message and the members wanting to reconstruct the message. Authenticated members can reconstruct a secret message through GHZ swapping. Moreover, this protocol is efficient to expand the number of members to arbitrary number n, so it is a close quantum secret sharing protocol to classical secret sharing protocol.

양자 인증 및 양자 서명 기법

이덕진(Duk-jin Lee),이화연(Hwa-Yean Lee),임종인(Jong-in Lim),양형진(Hyung-jin Yang) 한국정보보호학회 2004 情報保護學會誌 Vol.14 No.3

본 연구에서는 양자 인증 기법 및 양자 서명 기법을 살펴보고 양자 암호 분야의 연구 방향을 제시하고자 한다. 기존에 제안된 양자 인증 기법 중 고전적인 인증 수열을 이용한 인증 기법과 양자 고유의 얽힘 상태를 이용한 인증 기법을 소개한다. 양자 서명기법에서는 양자 역학의 고유한 성질을 만족하는 특징인 GHZ 상태를 이용하여 믿을 만한 제 삼자의 중재를 통하여 서명 검증을 수행한다.

初等養護敎師의 保健敎育實態에 關한 調査硏究

이화연,박영수 韓國學校保健學會 1993 韓國學校保健學會誌 Vol.6 No.1

The purpose of this study was to survery the current status of informal health education which elementary school nurses have performed in these days. The questionaire survey in this study was obtained from 154 (74.0%) out of 208 elementary school nurses in Kyungbuk province. This study is about their health educational conditions, contents, attitudes. The results are summarized as follows. 1. General characteristics of respondents 1) As for age distribution, thirties with 56.5% is larger than any other group 2) As for school size, below 18 classes with 48.1% is the highest 3) As for the place in which the work, country side (below country) with 65.7% is the highest 4) 89.6% of total respondents have graduated from nurse college 5) Their total career below 10 years is 68.2% 6) Their clinical career below one year is 35.7% 2. Actual conditions of health education 1) The rate of respondents who execute health education is 75.3% out of 154 respondents 2) Health education does not execute because the task of school nurses is busy. This percentage is 55.3% 3) Respondents who draw up a yearly health education plan are 84.5% 4) Weekly health education classes with 1 ~ 2 times are 79.3% and teaching time with 89.7% is physical class 5) 75.0% of total respondents don't use the textbook in health education and the reason is that the contents of nextbook are poor. 6) In health education, teaching aids with VTR, slide films, charts etc, are 80.2% 7) 82.8% of total respondents don't evaluate the result of teaching 3. Analysis of contents of health education and attitudes of school nurses. 1) The rate of private sanitation for keeping health with 64.7% is high among the contents 2) 90.9% of total respondents demand health education and 92.9% of then demand its independence of a subject 3) The degrees of school principals' help and understanding are 90.3%, and those of teachers are 89.6% 4) The degrees of school nurses' confidence are high at 35.1% 5) Regular health education classes a week of a school nurse with 3 ~4 times are 40.9%