- 이진트리 기반의 속성기반 암호전송 알고리즘
- ㆍ 저자명
- 이문식,김홍태,홍정대,Lee. Moon Sik,Kim. HongTae,Hong. Jeoung Dae
- ㆍ 간행물명
- 韓國軍事科學技術學會誌
- ㆍ 권/호정보
- 2014년|17권 3호|pp.358-363 (6 pages)
- ㆍ 발행정보
- 한국군사과학기술학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
In this paper, we present two constructions of the attribute-based broadcast encryption(ABBE) algorithm. Attribute-based encryption(ABE) algorithm enables an access control mechanism over encrypted data by specifying access policies among private keys and ciphertexts. ABBE algorithm can be used to construct ABE algorithm with revocation mechanism. Revocation has a useful property that revocation can be done without affecting any non-revoked uers. The main difference between our algorithm and the classical ones derived from the complete subtree paradigm which is apt for military hierarchy. Our algorithm improve the efficiency from the previously best ABBE algorithm, in particular, our algorithm allows one to select or revoke users by sending ciphertext of constant size with respect to the number of attributes and by storing logarithm secret key size of the number of users. Therefore, our algorithm can be an option to applications where computation cost is a top priority and can be applied to military technologies in the near future.