다중 독립 PKG 환경에서 인증된 신원기반 키 동의 프로토콜
- Title
- 다중 독립 PKG 환경에서 인증된 신원기반 키 동의 프로토콜
- Other Titles
- Authenticated Identity-based Key Agreement Protocols in a Multiple Independent PKG Environment
- Author
- 오희국
- Keywords
- ID-based cryptosystem; bilinear map; key agreement protocol; multiple independent PKG
- Issue Date
- 2005-08
- Publisher
- 한국정보보호학회
- Citation
- 정보보호학회논문지, v.15, No.4, Page.11-27
- Abstract
- To date, most identity-based key agreement protocols are based on a single PKG (Private Key Generator) environment. In 2002, Chen and Kudla proposed an identity-based key agreement protocol for a multiple PKG environment, where each PKG shares identical system parameters but possesses distinct master key. However, it is more realistic to assume that each PKG uses different system parameters including the PKG's master key. In this paper, we propose a new two party key agreement protocol between users belonging to different PKGs that do not share system parameters. We also extend this protocol to two types of tripartite key agreement protocols. We show that our two party protocol requires minimal amount of pairing computation for a multiple PKG environment and our tripartite protocol is more efficient than existing protocols. We also show that the proposed key agreement protocols satisfy every security requirements of key agreement protocol.
- URI
- https://repository.hanyang.ac.kr/handle/20.500.11754/154247
- ISSN
- 1598-3986
- Appears in Collections:
- COLLEGE OF COMPUTING[E](소프트웨어융합대학) > COMPUTER SCIENCE(소프트웨어학부) > Articles
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