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진석용,Jin, Seok-Yong 대전대학교 군사연구원 2009 군사학연구 Vol.7 No.-
This article deals with military thought in general. First I tried to distinguish 'thought' from 'theory', 'philosophy', and 'principle'. Thought means the act of thinking about or considering something, an idea or opinion, or a set of ideas about a particular subject, e.g. military affairs in the present discussion. Theory means a formal statement of the rules on which a subject of study is based or of ideas which are suggested to explain a fact or event or, more generally, an opinion or explanation. Philosophy means the use of reason in understanding such things as the nature of reality and existence, the use and limits of knowledge. Principle means a basic idea or rule that explains or controls how something happens or works. Chapter 3 summarized the characteristics of military thoughts into five points', (i) it is closely related with concrete experiences of a nation; (ii) it includes philosophical and logical arguments; (iii) it relies heavily on the political thought of a nation; (iv) it includes necessarily value-judgments; (v) it contains visions of a nation which are not only descriptions or explanations of military affairs, but also evaluations and advocacies. Chapter 4 considers the relation of international political thoughts to military thought. Throughout the history of the modem states system there have been three competing traditions of thought: the Hobbesian or realist tradition, which views international politics as a state of war; the Kantian or universalist tradition, which sees at work in international politics a potential community of mankind; and the Grotian or internationalist tradition, which views international politics as taking place within an international society. Chapter 5 considers the law of war, which is a body of law concerning acceptable justifications to engage in war (jus ad bellum) and the limits to acceptable wartime conduct (jus in bello). Among other issues, modem laws of war address declarations of war, acceptance of surrender and the treatment of prisoners of war, military necessity along with distinction and proportionality, and the prohibition of certain weapons that may cause unnecessary suffering.
진석용,Jin, Seok-Yong 대전대학교 군사연구원 2005 군사학연구 Vol.3 No.-
In 2004 Daejeon University established a department of military studies by an agreement with the Korea Army. And more than three universities brought up the rear. This means that military studies is authorized as one of university majors by the Higher Education Act. The department enables students not only to graduate with a degree of Military Studies but also to receive officer’s commission in the Korea Army. All students incur seven-year military services by receiving four-year scholarships from the Army. The graduates start out as Second Lieutenants and become eligible for promotion. This article deals with (i) how the major came to be offered; (ii) details of the curricula of some universities; (iii) two perspectives on the curriculum of Military Studies (One is education for a good man, the other for a good warrior); finally (iv) the issues under debate as Military Studies is authorized as a science, and the problems awaiting solution.
유한체 연산 기반의 치환상자 설계 및 변환 영역 특성 분석
진석용(Seok-Yong Jin),백종민(Jong-Min Baek),송홍엽(Hong-Yeop Song) 한국정보보호학회 2007 정보보호학회논문지 Vol.17 No.3
본 논문에서는, 기존의 암호시스템에 사용되는 치환상자(S-box)를 변형시키는 방법을 제안한다. 제안된 기법은 부울(Boolean) 함수의 벡터공간 상에서의 표현을 유한체 상에서의 다항식으로 변환하는 방법을 이용한다. Rijndael 암호시스템의 치환상자에 제안된 기법을 적용하여, 치환상자를 구성하는 부울 함수의 선형복잡도가 증가한 새로운 치환상자를 생성한다. 변환 영역 해석 (Transform Domain Analysis)을 중심으로 이들의 암호학적 특성을 분석한다. In this paper, we propose a simple scheme which produces a new S-box from a given S-box. We use well-known conversion technique between the polynomial functions over a finite field F 2 n and the boolean functions from F₂ⁿ to F₂. We have applied this scheme to Rijndael S-box and obtained 29 new S-boxes, whose linear complexities are improved. We investigate their cryptographic properties via transform domain analysis.
행벡터 집합이 벡터공간을 이루는 하다마드 행렬의 동치관계
진석용(Seok-Yong Jin),김정헌(Jeong-Heon Kim),박기현(Ki-Hyeon Park),송홍엽(Hong-Yeop Song) 한국통신학회 2009 韓國通信學會論文誌 Vol.34 No.7C
본 논문에서는 행벡터의 집합이 이진 벡터합 연산에 관해 닫혀있는 모든 하다마드 (Hadamard) 행렬들은 서로 동치(equivalent)임을 증명한다. 이를 이용하면, 최대길이 수열로부터 생성된 순회 (cyclic) 하다마드 행렬과 크로네커 (Kronecker) 곱에 의해 생성된 월쉬-하다마드 (Walsh-Hadamard) 행렬이 동치임을 간단히 보일 수 있다. In this paper, we show that any two Hadamard matrices of the same size are equivalent if they have the property that the rows of each Hadamard matrix are closed under binary vector addition. One of direct consequences of this result is that the equivalence between cyclic Hadamard matrices constructed by maximal length sequences and Walsh-Hadamard matrix of the same size generated by Kronecker product can be established.