• 한국IT서비스학회지
• /
• 제21권3호
• /
• pp.27-42
• /
• 2022

Open Data is an essential resource for the data industry. 'Act On Promotion Of The Provision And Use Of Public Data', enacted on July 30, 2013, mandates public institutions to manage the quality of Open Data and provide it to the public. Via such a legislation, the legal basis for the public to Open Data is prepared. Furthermore, public institutions are prohibited from developing and providing open data services that are duplicated or similar to those of the private sector, and private start-ups using open data are supported. However, as the demand for Open Data gradually increases, the cases of refusal to provide or interruption of Open Data held by public institutions are also increasing. Accordingly, the 'Open Data Mediation Committee' is established and operated so that the right to use data can be rescued through a simple dispute mediation procedure rather than complicated administrative litigation. The main issues dealt with in dispute settlement so far are usually the rights of third parties, such as open data including personal information, private information such as trade secrets, and copyrights. Plus, non-open data cannot be provided without the consent of the information subject. Rather than processing non-open data into open data through de-identification processing, positive results can be expected if consent is provided through active rights processing of the personal information subject. Not only can the Public Mydata Service be used by the information subject, but Open Data applicants will also be able to secure higher quality Open Data, which will have a positive impact on fostering the private data industry. This study derives a plan to establish a rights processing platform to enhance the usability of Open Data, including private information such as personal information, trade secrets, and copyright, which have become an issue when providing Open Data since 2014. With that, the proposals in this study are expected to serve as a stepping stone to revitalize private start-ups through the use of wide Open Data and improve public convenience through Public MyData services of information subjects.

• 통상정보연구
• /
• 제11권3호
• /
• pp.363-390
• /
• 2009

This study investigates the role of private participation in FTA Negotiation in case of US, Mexico and Japan. We utilize Putnam(1988)'s two stage negotiation model, Schelling Conjecture and Principal-Agent(P-A) theory to understand the role of private sector in FTA Negotiation. Those theories are useful to understand the behavior and interaction of key players such as private sector, congress and government in FTA negotiation. Putnam(1988)'s two stage negotiation model divides the FTA negotiation process into two processes: the external negotiation with foreign country and domestic negotiation with domestic interest group. Principal-Agent(P-A) theory provides the theoretical foundation of Putnam's two stage negotiation model, which is that principal's interest is not identical to the interest of Agent. We showed that the private sector and congress play an important role in FTA negotiation in United States. In case of Mexico, the private sector and government occupy the dominant position in FTA negotiation. In particular, the cooperation of industry and government has been successfully established via COECE in Mexico. In contrast to these countries, the role of private participation in trade policy is relatively low in Japan and Korea.

• 대한가정학회지
• /
• 제39권9호
• /
• pp.153-174
• /
• 2001

The objectives of this study were to examine the propensity and to analyze some determinants of complaining behavior about the educational services of private institutes. The survey was conducted by means of self-administered questionnaire with 546 university students Living in Seoul and Cheongjoo. They had an experience of studying in the educational services of private institutes in recent two years. Major findings were as following: (1) The propensity of private complaining behavior about the educational services of private institutes averages 3.36 points out of 5. This score is beyond the middle slightly. Whereas the propensity of pubic complaining behavior is very low. (2) According to the discriminant analysis, tuition fee, information supplied for solving the dissatisfaction, and altitude about the complaining behavior are the determinants to distinguish between complaining/non complains behavior group of private complaining behavior. (3) Information supplied for solving the dissatisfaction, kindness of the stars, the establishment, the way of making tuition fees, the degree of awareness of cost, the attitude about complaining behavior, the confidence of success for complaining behavior are the determinants to distinguish between complaining/non complains behavior group of public complaining behavior.

• 한국재난정보학회 논문집
• /
• 제12권3호
• /
• pp.219-227
• /
• 2016

이 연구는 청원경찰의 채용을 개선하기 위한 목적을 가진 연구로서, 청원경찰 채용의 공정성을 확보하여 우수한 청원경찰을 선발하기 위한 목적을 가지고 있다. 청원경찰은 청원주의 요청에 의하여 해당지역 내에서 경찰활동을 하는 것으로서 민간경비와 달리 국가주요시설에서 경찰의 업무를 수행하기 때문에 특수한 성격을 가지고 있어 채용이 중요한 역할을 한다. 그러나, 현재 청원경찰의 채용은 비공개채용, 면접위주의 채용, 면접위원의 구성문제 등으로 채용상의 문제가 지속적으로 발생하고 있다. 따라서 이 연구에서는 문제의 해결방안으로 청원경찰 공개채용 의무규정 마련, 경비시설의 특성을 고려한 체력검정 또는 필기시험 등 도입, 면접위원 구성 시 외부위원 위촉 의무화를 해결방안으로 제시하였다.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제15권8호
• /
• pp.2865-2878
• /
• 2021

As a current popular technology, the blockchain has a serious issue: the private key cannot be retrieved due to force majeure. Since the outcome of the blockchain-based Bitcoin, there have been many occurrences of the users who lost or forgot their private keys and could not retrieve their token wallets, and it may cause the permanent loss of their corresponding blockchain accounts, resulting in irreparable losses for the users. We propose a recoverable private key scheme for consortium blockchain based on the verifiable secret sharing which can enable the user's private key in the consortium blockchain to be securely recovered through a verifiable secret sharing method. In our secret sharing scheme, users use the biometric keys to encrypt shares, and the preset committer peers in the consortium blockchain act as the participants to store the users' private key shares. Due to the particularity of the biometric key, only the user can complete the correct secret recovery. Our comparisons with the existing mnemonic systems or the multi-signature schemes have shown that our scheme can allow users to recover their private keys without storing the passwords accurately. Hence, our scheme can improve the account security and recoverability of the data-sharing systems across physical and virtual platforms that use blockchain technology.

• 한국문헌정보학회지
• /
• 제33권2호
• /
• pp.185-202
• /
• 1999

정보산업이 국가의 기간산업으로 발돋움하면서 정보산업의 핵심을 이루는 정보자원의 개발과 확보는 정보산업의 발전과 성공의 중요한 요인이 된다. 이때 공공부문에서 보유하고 있는 공공정보자원은 국가적인 정보자원의 확보를 위한 기반이 될 수 있으며 공공정보자원의 적극적인 활용은 거시적으로 정보산업의 발전과 직결될 수 있다. 본 연구에서는 이와 과하여 공공정보자원의 민간 활용 방안을 제시하였다 공공정보자원의 민간 활용 은 공공부문의 정보자원을 민간 사업자에게 제공하여 정보의 부가가치화와 상업화를 통해 최종 이용자인 국민에게 제공하는 것으로서 민간 사업자의 사업 기회 창출과 이를 통한 산업 육성, 그리고 공공${\cdot}$민간 부문간의 역할 분담을 통해 보편적 서비스를 실현할 수 있다.

• International Journal of Internet, Broadcasting and Communication
• /
• 제10권3호
• /
• pp.11-25
• /
• 2018

While being believed that decrypting any RSA ciphertext is as hard as factorizing the RSA modulus, it was also shown that, if additional information is available, breaking the RSA cryptosystem may be much easier than factoring. For example, Coppersmith showed that, given the 1/2 fraction of the least or the most significant bits of one of two RSA primes, one can factorize the RSA modulus very efficiently, using the lattice-based technique. More recently, introducing the so called cold boot attack, Halderman et al. showed that one can recover cryptographic keys from a decayed DRAM image. And, following up this result, Heninger and Shacham presented a polynomial-time attack which, given 0.27-fraction of the RSA private key of the form (p, q, d, $d_p$, $d_q$), can recover the whole key, provided that the given bits are uniformly distributed. And, based on the work of Heninger and Shacham, this paper presents a different approach for recovering RSA private key bits from decayed key information, under the assumption that some random portion of the private key bits is known. More precisely, we present the algorithm of recovering RSA private key bits from erased key material and elaborate the formula of describing the number of partially-recovered RSA private key candidates in terms of the given erasure rate. Then, the result is justified by some extensive experiments.

• Journal of Information Processing Systems
• /
• 제17권2호
• /
• pp.284-296
• /
• 2021

The cloud has already become the core infrastructure of information systems, and government institutions are rapidly migrating information systems to the cloud. Government institutions in several countries use private clouds in their closed networks. However, because of the advantages of public clouds over private clouds, the demand for public clouds is increasing, and government institutions are expected to gradually switch to public clouds. When all data from government institutions are managed in the public cloud, the biggest concern for government institutions is the leakage of confidential data. The public-private-partnership (PPP) cloud provides a solution to this problem. PPP cloud is a form participation in a public cloud infrastructure and the building of a closed network data center. The PPP cloud prevents confidential data leakage and leverages the benefits of the public cloud to build a cloud quickly and easily maintain the cloud. In this paper, based on the case of the PPP cloud applied to the Korean government, the concept, architecture, operation model, and contract method of the PPP cloud are presented.

• 한국컴퓨터정보학회논문지
• /
• 제17권3호
• /
• pp.113-120
• /
• 2012

기존의 IP 망을 이용하여 음성 데이터 서비스를 제공하는 VoIP는 최근 많은 관심을 받고 있다. VoIP 서비스는 다양한 보안 취약성을 포함한다. VoIP 서비스의 주요 공격 유형으로는 도 감청, DoS 공격, 스팸, 서비스 오용 공격 등을 들 수 있다. 이 중에서 도 감청으로 인한 기밀 정보의 유출은 매우 중요한 문제로 다루어지고 있다. VoIP 미디어 정보에 대한 도 감청 방지를 위해 SRTP나 ZRTP와 같은 암호화 기법이 주로 사용되고 있다. 일반적으로 VoIP 서비스는 단일 사설망 내에서의 운용과 서로 다른 사설망간의 운용으로 구분할 수 있는데, SRTP나 ZRTP는 단일 사설망 내에서의 통신 시에는 VoIP 미디어 정보를 암호화 한다. 그러나 두 가지 방법 모두 서로 다른 사설망간의 통신 시에는 암호화를 수행하지 못하는 문제를 가지고 있다. 이러한 문제를 해결하기 위해 본 논문에서는 기존의 SRTP 프로토콜의 일부를 수정하여 서로 다른 사설망간의 통신 시에도 VoIP 미디어 정보에 대한 암호화를 수행할 수 있는 암호화 기법을 제안한다.

• Journal of Information Technology Applications and Management
• /
• 제14권1호
• /
• pp.21-36
• /
• 2007

We face with numerous situation of decision making. In this situation, we would make decision through individual's own information, or others' decision making with ignoring private information, Also we would make decision through compromise of private information and others' information. like this, we call situation to imitate information of previous decision maker, with disregarding private own information,'information cascades' Also, anchoring effects are results of insufficient adjustment from an arbitrary value. In this paper, we examined how information cascades effects and anchoring effects would be generated in the people who use IT technique as instant poll of website. And this paper presents alternatives to decrease information cascades effects and anchoring effects. This exercise provides facts anchoring effects occur when voters can see poll result. And this paper shows that more degree of output difference is deepened, and more anchoring effects occur. Also this paper shows that when website gives positive payoff, more anchoring effects occur.