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Paper 2005/339

Identity-Based Key Agreement with Unilateral Identity Privacy Using Pairings

Zhaohui Cheng and Liqun Chen and Richard Comley and Qiang Tang

Abstract

In most of the existing identity-based key agreement schemes, it is usually assumed that either the communicated parties know each other's identifier before the protocol starts or their identifiers are transferred along with the protocol messages. However, these schemes are not suitable for use in many real-world applications aimed to achieve unilateral identity privacy, which means that one communicating party does not want to expose his identifier to an outsider while his partner cannot know his identifier in advance. In this paper, we propose an efficient identity-based two-party key agreement scheme with unilateral identity privacy using pairing, and formally analyze its security in a modified Bellare-Rogaway key agreement security model.

Metadata
Available format(s)
PDF PS
Category
Cryptographic protocols
Publication info
Published elsewhere. Unknown where it was published
Contact author(s)
m z cheng @ mdx ac uk
History
2005-09-27: revised
2005-09-27: received
See all versions
Short URL
https://ia.cr/2005/339
License
Creative Commons Attribution
CC BY
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