ID기반 온라인/오프라인 사인크립션(Signcryption) 기법Identity-Based Online/Offline Signcryption Without Rnadom Oracles
- Other Titles
- Identity-Based Online/Offline Signcryption Without Rnadom Oracles
- Authors
- 박승환; 김기탁; 구우권; 이동훈
- Issue Date
- 2010
- Publisher
- 한국정보보호학회
- Keywords
- Signcryption; Online/Offline; ID Based Cryptosystem; Signcryption; Online/Offline; ID Based Cryptosystem
- Citation
- 정보보호학회논문지, v.20, no.5, pp.23 - 36
- Indexed
- KCI
- Journal Title
- 정보보호학회논문지
- Volume
- 20
- Number
- 5
- Start Page
- 23
- End Page
- 36
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/117687
- ISSN
- 1598-3986
- Abstract
- Signcryption is a cryptographic primitive which offers authentication and confidentiality simultaneously with a cost lower than signing and encrypting the message independently. We propose a new cryptographic notion called Identity-based online/offline signcryption. The notion of online/offline scheme can be divided into two phases, the first phase is performed offline prior to the arrival of a message to be signed or encrypted and the second phase is performed online phase after knowing the message and the public key of recipient. The Online phase does not require any heavy computations such as pairings or exponents. It is particularly suitable for power-constrained devices such as smart cards. In this paper, we propose ID-based signcryption scheme and ID-based online/offline signcryption scheme where the confidentiality and authenticity are simultaneously required to enable a secure and trustable communication environment. To our best knowledge, this is the first ID-based online/offline signcryption scheme that can be proven secure in the standard model.
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Collections - School of Cyber Security > Department of Information Security > 1. Journal Articles
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