• Title/Summary/Keyword: Mutual Agreement

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Mutual Authentication and Session Key Agreement Protocol Using only a Hash Function (해쉬함수만을 이용한 상호인증 및 세션키 공유 프로토콜)

  • 이은정;이필중
    • Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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    • 1997.11a
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    • pp.120-127
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    • 1997
  • 본 논문에서는 해쉬함수 만을 이용한 상호 인증 및 세션키 공유 시스템을 안전하면서 적은 비용으로도 구현할 수 있는 프로토콜을 제안한다. 인증값을 계산하기 위하여 암호 알고리즘이나 모듈라 연산은 전혀 사용되지 않기 때문에 사용자 Terminal도 간단한 계산 능력을 갖추면 된다. 사용자는 패스워드를 암기하며 128비트 이상의 키가 저장된 간단한 메모리 디바이스를 소유한다.

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Cooperative Determination of Economic Order Quantity to Reduce a Supplier's Freight Cost (공급자의 운송비용을 절감하기 위한 경제적 발주량의 상효협동적 걸졍)

  • Kim, Kap-Hwan;Hwang, Hark
    • Journal of the Korean Operations Research and Management Science Society
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    • v.14 no.1
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    • pp.51-58
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    • 1989
  • A joint economic ordering problem between supplier and customer has been formulated where a supplier has to pay the freight cost which follows the principle of economy of scale. An algorithm is given to determine order size and price simultaneously which give gains to both parties. A scenario is presented within which both parties come to a mutual agreement on the revised order size and price by utilizing quantity discount schedule.

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Mathematical flaw of Yang and Chang's scheme and it's solution (Yang과 Chang의 기법의 수학적 결함과 그 해결책)

  • Rhim, Wonwoo;Oh, Heekuck
    • Proceedings of the Korea Information Processing Society Conference
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    • 2010.11a
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    • pp.1320-1323
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    • 2010
  • 2009년 Yang과 Chang은 Computers and Security에 "An ID-based-remote mutual authentication with key agreement scheme on elliptic curve cryptosystem"을 제안하였다. 하지만 제안된 방법에서 사용한 타원곡선 곱셈에서 수학적 오류를 범하였고, 수학적 오류를 수정한 방법을 제안하고자 한다.

A Study on Some Problems in Multiparty Arbitration (다수당사자중재의 문제점에 관한 고찰)

  • Kim Myung-Yeop
    • Journal of Arbitration Studies
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    • v.13 no.1
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    • pp.207-244
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    • 2003
  • There are many parties who connected with contracts like a contract for construction. Dispute arising from the two parties can be souled by themselves. but it grows the necessity of settlement at one effort. The meaning of multiparty arbitration is solution of mixed disputes without inconsistency through multiparty concerned. H the parses wish to settle the disputes by arbitration, they must come to an arbitration agreement. The arbitration agreement is necessary to resolve disputes autonomously, that may be in the form of a separate agreement or in the form of a clause in a contract. More ever it is resonable to view the arbitration agreement as a substantive contract in its legal nature enabling the authority for dispute resolution by the arbitrator. I had argument about who should appoint the arbitrator. That is to say, each party can appoint the arbitrator, otherwise the courts can appoint one. The basis of multiparty arbitration is focused on the factor that the courts may have the right to order the consolidation of arbitration proceedings without consent of the parties. The dispute can be settled by the arbitrators who are appointed. Appointing arbitrator is very important because it affects the party's equality. The right to appoint arbitrator shall be entitled each party in multiparty arbitration. Therefore they can appoint plural arbitrators by mutual agreement. for .reference to Rules of Arbitration of The International Chamber of Commerce, the Court shall appoint a sole arbitrator or three arbitrators in condition. The Arbitration Act of Korea dose not have the clause on multiparty arbitration including the arbitration rules. But if we have the clause enacted, it brings a situation in which both parties gain a benefit.

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Novel Mutual Inductance Formula for the Magnetic Resonance Wireless Power Transmission System Using Helical Coils (헬리컬 코일을 이용하는 자기 공진형 무선 전력 전송 시스템에서 새로운 상호 인덕턴스의 계산식 제안)

  • Jang, Ju-Yeop;Hur, Jung;Kim, Yong-Nam
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.23 no.6
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    • pp.669-681
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    • 2012
  • In this paper, analytical calculations using a novel mutual inductance formula for a resonant wireless power transmission system using helical coils. The look-up table of critical variables during the mutual inductance calculation process was formulated. The calculation results for resonant frequency and insertion loss were compared with experimental results when the distance between the two helical coils in a structure where the transmission and reception is symmetrical was varied with 10 mm increments from 53 mm to 500 mm. On average, the resonant frequency showed a difference of 5.63 % between the experimental results and the calculation results. The insertion loss had an average difference 2.25 dB where the smallest difference of 0.33 dB occurred with 290 mm. It was found that the experimental results without using a balun were in greater agreement with the calculation results.

Impersonation Attacks on Anonymous User Authentication and Key Agreement Scheme in Wireless Sensor Networks (무선센서네트워크에서 익명의 사용자 인증과 키동의 기법에 대한 가장 공격)

  • Choi, Hae-Won;Kim, Hyunsung
    • Journal of Digital Convergence
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    • v.14 no.10
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    • pp.287-293
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    • 2016
  • Wireless sensor networks (WSNs) have many applications and are deployed in a wide variety of areas. They are often deployed in potentially adverse or even hostile environment so that there are concerns on security issues in these WSNs. Recently, an anonymous user authentication and key agreement scheme (AUAKAS) was proposed based on symmetric cryptosystem in WSNs. It is claimed in AUAKAS that it assures security against different types of attacks including impersonation attacks. However, this paper shows that AUAKAS does not cope from user impersonation attack and gateway impersonation attack from the legally registered user on the gateway. The security analysis could guide the required features of the security scheme to be satisfied.

Simple and Efficient Authenticated Key Agreement Protocol (간단하고 효율적인 상호 인증 키 동의 프로토콜)

  • 이성운;유기영
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.13 no.5
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    • pp.105-112
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    • 2003
  • In this raper, we propose two simple and efficient key agreement protocols, called SEKA-H and SEKA-E, which use a pre-shared password between two parties for mutual authentication and agreeing a common session key. The SEKA-H protocol uses a hash function to verify an agreed session key. The SEKA-E Protocol, a variant of SEKA-H, uses an exponentiation operation in the verification phase. They are secure against the man-in-the-middle attack the password guessing attack and the Denning-Sacco attack and provide the perfect forward secrecy. The SEKA-H protocol is very simple in structure and provides good efficiency compared with other well-known protocols. The SEKA-E protocol is also comparable with the previous protocols.

A Study on the utilization plan of Mutual Recognition Agreement for Korea-China FTA: Focused on TBT and Conformity Assessment (한중 FTA체결에 따른 정부의 MRA 활용 방안에 관한 연구 -TBT 및 적합성평가를 중심으로-)

  • Jun, Byoung Ho;Kang, Byung Goo
    • International Commerce and Information Review
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    • v.17 no.3
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    • pp.177-201
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    • 2015
  • Korea-China FTA was initialized in 2015. Korea has a high level of dependence on trade for its economic growth, especially to China. Technical Barriers to Trade(TBT) among various non-tariff barriers is becoming increasingly important. Elimination of TBT is one of the key issues in which the South Korean government is interested since technical barriers significantly affect trade between the two countries. MRA has been considered as an effective tool to relieve such technical barriers. Several studies and surveys showed that MRA would mitigate the barriers of import and solve the problems that many companies face in international market. This study tries to seek utilization plan of MRA for Korea-China FTA. It suggests suitable utilization plan of MRA considering the difference of technical regulations between two countries. This paper has value in that it provides specific MRA strategies targeting China while other prior studies have merely analyzed the necessity of MRA.

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Rejection Sensitivity and Dysfunctional Communication Patterns of Serial Arguing (거절 민감성과 연속적 언쟁의 역기능적 의사소통)

  • Lee, Sangeun;Roloff, Michael E.
    • The Journal of the Korea Contents Association
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    • v.19 no.11
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    • pp.247-261
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    • 2019
  • Demand/withdraw communication is an important dysfunctional pattern of serial arguing. This study aims at addressing factors that affect the ways in which self-demand/partner-withdraw pattern increases the likelihood of persistence of serial arguing. We posit that sensitivity to rejection is positively related to the degree to which individuals perceive a partners' behavior as generally disconfirming, which is positively related to enactment of self-demand/partner-withdraw during an argumentative episode. This sequence is positively related to perception of arguments as unresolved. In addition, among those who reported their argument was resolved, this sequence is positively related to the likelihood that the argument is resolved without mutual agreement. Serial mediation analysis confirmed that the likelihood of resolution without mutual agreement were positively associated with rejection sensitivity partially because high RS individuals are likely to perceive their partner to be generally disconfirming and to enact self-demand/partner-withdraw communication during the episode. However, this pattern did not apply to perception of the argument as resolved.

The ontological understanding in the matter of truth in a work of art -on the subject of philosophical hermeneutics of H. G. Gadamer (예술 작품의 진리문제에 대한 존재론적 이해 - H. G. Gadamer의 철학적 해석학을 중심으로 -)

  • Kim Jin-Yub
    • Journal of Science of Art and Design
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    • v.8
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    • pp.95-127
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    • 2005
  • It's a matter of ontology rather than that of cognition and methodology to discuss a work of art in Gadamer's philosophy. In addition, he emphasizes the cognitive aspect of a work of art instead of comparing forms and contents of them. For that reason, he excludes aesthetic consciousness derived from Kant first and then makes away with Schiller's theory of aesthetic education. For Gadamer, the concept of truth does not mean accord or correspondence. It would rather be an encounter. This encounter is not axed on a specific time, but a continuous and historical one. Basically. a work of art guarantees this kind of an encounter. This encounter is not based on mutual agreement through an objective standard but on recognition with mutual understanding. Therefore, prejudice or tradition should be acknowledged and respected instead of being excluded. We have only to minimize difference between them through conversation. Gadamer's ontology of a work of art is based on such a ground. The function of a work of art is not only simple satisfaction of aesthetic senses but an object of interpretation, that is, a text by presenting a ground of truth through an agreement of situation. This text reveals its meaning in the situation of author-text-reader. The appearance of this meaning is nothing but the birth of truth. Symbol-allegory and classicism show how to express this kind of truth in a work of art. It is true that Gadamer's philosophical hermeneutics cannot be easily applied to interpret a concrete work of art because it just lays emphasis on the process of 'understanding' instead of a detailed analysis on an individual work. For that reason, he was criticized by some people because of this subjectivity of understanding. However, it's meaning could be changed according to the viewpoint on a work of art. There appears various structural approaches on a work of art in contemporary theory of art. Gadamer just asks the basis of such approaches instead of criticizing a specific one Therefore, a practical approach on individual work should be made separately and hermeneutics enriches the meaning of open-ending of each work of art.

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