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IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences

Stronger Chikazawa-Yamagishi ID-Based Key Distribution

Ik Rae Jeong, Jeong Ok Kwon, Dong Hoon Lee

Published Jan 1, 2009• 1 citation
Publisher

Abstract

The Chikazawa-Yamagishi scheme is an ID-based key distribution scheme which is based on the RSA cryptosystem. There are several variant schemes to improve the efficiency and the security of the Chikazawa-Yamagishi scheme. Unfortunately, all of the proposed schemes have some weaknesses. First, all the proposed schemes require time synchronization of the communicating parties. Second, none of the proposed schemes provide both forward secrecy and security against session state reveal attacks. In this paper, we suggest an ID-based key distribution scheme which does not require time synchronization and provides both forward secrecy and security against session state reveal attacks.

DOI
10.1587/transfun.e92.a.1379

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The Chikazawa-Yamagishi scheme is an ID-based key distribution scheme which is based on the RSA cryptosystem. There are several variant schemes to improve the efficiency and the security of the Chikazawa-Yamagishi scheme. Unfortunately, all of the proposed schemes have some weaknesses. First, all the proposed schemes require time synchronization of the communicating parties. Second, none of the proposed schemes provide both forward secrecy and security against session state reveal attacks. In this paper, we suggest an ID-based key distribution scheme which does not require time synchronization and provides both forward secrecy and security against session state reveal attacks.
In 2000, Xu and Tilborg proposed an ID-based conference key distribution scheme which builds on earlier work of Harn and Yang in the 2-party setting. Recently, Jung et al. have discovered security flaws in the Xu-Tilborg scheme and proposed an improvement of this scheme to fix the security flaws. However, Jung et al.'s improvement introduces another security weakness. We demonstrate this by showing that the improved scheme is vulnerable to a parallel session attack mounted by two colluding adversaries. Further, we recommend changes to the scheme that address this vulnerability.
The security of a recently proposed ID-based authenticated key agreement protocol was analyzed,and an enhanced ID-based authenticated key agreement protocol is presented based on the previous work. a malicious PKG (private key generator) can still obtain all of the agreed session keys, that is, it doesn't provide PKG-forward secrecy in escrowless mode. Aiming at the security flaws of an existing ID-based key agreement Protocol and a key agreement Protocol for multi-trustdomain proposed based on the new variant mode of ID- Base public key infrastrueture(PKI), an improved scheme is proposed. The new scheme can avoid excessive power of KGC to make up the security flaws in the original protocols, which has a higher level of security. The new schemes have many properties such as equal contribution; non-key control; against man-in-middle attack; etc.