Attribute-Based Encryption provides an encrypted access control mechanism. A user applies and obtains a private key that is associated with various attributes of the applicant. A secret message is encrypted with an access control policy tree representing a logical combination of different attributes. Only the users whose attributes satisfy the policy tree can decrypt the message. There are many scenarios that require dynamic attributes. Whenever a dynamic attribute updates, a new key is regenerated and issued even if there are hundreds of attributes involved in the key. This is not efficient since the cost of generating new private key is proportional to the number of attributes associated with that private key. To resolve the efficiency problem, this paper introduces the concept of Dynamic Attribute Based Encryption, a key revocation mechanism, which is necessary to prevent a user from keeping a private key with expired attributes. We show that the new concept improves the efficiency of the encryption scheme and helps us develop a new trust management method.
목차
Abstract 1. Introduction 2. Preliminary 2.1. Attribute-Based Encryption (ABE) 2.2. Motivation: Dynamic Attribute and Information Centric Trust 3. Fundamentals of Dynamic Attribute Based Encryption 3.1. DABE: Concept and Concerns 3.2. DABE Design 4. DABE Implementation 4.1. KeyGen 4.2. AttrUpdate 4.3. KeyUpdate 4.4. KeyIntegrate 5. Experimentation 5.1. Preliminary 6. Conclusion References
키워드
SecurityEncryptionAttribute based encryptionAccess controlTrust managementInternet of Things
저자
Eun-Kyu Lee [ Dept. of Information and Telecommunication Engineering, Incheon National University, Incheon, Korea ]
Ki Young Lee [ Dept. of Information and Telecommunication Engineering, Incheon National University, Incheon, Korea ]
Corresponding author
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.9 No.11