Configuration of security policies is one of the most important prerequisites for secure and credible running of secure operating systems. Although it is a hard, tedious and complicated task within which errors and bugs are incidental at all time. Accordingly, methods for automatic analysis of SELinux security policies are discussed in this paper. Firstly, security mechanism, security models and policy description language for SELinux are briefly introduced. Then a security analysis model is constructed in order to verify validity and integrity of security policies and all rules for Type Enhancement (TE), Role-Based Access Control (RBAC) are rewritten as formal expressions while all subjects, objects and elements are described as sets and mappings formally. Algorithms for analysis are designed based on such model. Comparing with that in SELinux Access Control (SELAC) model, scope of possible values for role can be reduced and thus a great many invalid security contexts are eliminated in our model. Finally, a prototype is implemented in C language and a security policy configuration case as to an application system called Student-Teacher system is designed to be used to test the prototype. Test results show that the prototype and corresponding methods can verify validity and integrity of policy configuration and are potential to be used to assist people to complete correct and reliable configuration.
목차
Abstract 1. Introduction 2. Methodology 2.1. Security mechanism of SELinux 2.2. Security Policy Description of SELinux 2.3. Analysis Model for SELinux Security Policies 3. Prototype and Results 4. Summary Acknowledgements References
보안공학연구지원센터(IJSIA) [Science & Engineering Research Support Center, Republic of Korea(IJSIA)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Security and Its Applications
간기
격월간
pISSN
1738-9976
수록기간
2008~2016
등재여부
SCOPUS
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Security and Its Applications Vol.6 No.2