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A Novel Way of Issuing Multiple Private Keys in ID-based Cryptosystems

Title
A Novel Way of Issuing Multiple Private Keys in ID-based Cryptosystems
Author
오희국
Issue Date
2007-11
Publisher
IEEE
Citation
2007 International Conference on Convergence Information Technology (ICCIT 2007), Page. 323-330
Abstract
In this paper, we propose a new efficient model for issuing multiple private keys in IBC (Identity-Based Cryptosystem). In our model, the private key of a user is divided into two components: LTK (Long-Term Key) and STK (Short-Term Key). Both are issued separately by different parties. The LTK is issued in a threshold manner by KPAs (Key Privacy Agency). In contrast, the STK is issued by a single authority called KGC (Key Generation Center). A user can efficiently obtain a new private key containing the same identity information by contacting only the KGC and obtaining a new STK. We also give a security proof of the key issuing model and present a new IBE (Identity-Based Encryption) scheme based on our key issuing model.
URI
https://ieeexplore.ieee.org/document/4420281http://repository.hanyang.ac.kr/handle/20.500.11754/107389
ISBN
0-7695-3038-9
DOI
10.1109/ICCIT.2007.365
Appears in Collections:
COLLEGE OF COMPUTING[E] > COMPUTER SCIENCE(소프트웨어학부) > Articles
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