Hybrid Protocol For Password-based Key Exchange in Three-party Setting

TingMao Chang; Jin Zhou; YaJuan Zhang; YueFei Zhu

Paper 2006/452

Hybrid Protocol For Password-based Key Exchange in Three-party Setting

TingMao Chang, Jin Zhou, YaJuan Zhang, and YueFei Zhu

Abstract

Modular design is a common approach for dealing with complex tasks in modern cryptology. The critical of this approach is that designing a secure hybrid protocol. In this paper, we study password-based key exchange in the three-party setting within the UC framework and design a hybrid protocol that UC-securely realizes such task. That is, we firstly define an appropriate ideal functionality F3-pwKE for password-based three-party key exchange. Next we partition the task into two sub-tasks, three-party key distribution and password-based two-party key exchange, and propose relevant two ideal functionalities, F3-KD, FpwKE. Finally, we present a (F3-KD, FpwKE) -hybrid protocol for password-based three-party key exchange that is proved to be UC-secure with respect to non- adaptive party corruption.

Metadata

Available format(s): PDF
Category: Cryptographic protocols
Publication info: Published elsewhere. Unknown where it was published
Contact author(s): zhoujin820916 jojo @ yahoo com cn
History: 2006-12-04: received
Short URL: https://ia.cr/2006/452
License: CC BY

BibTeX

@misc{cryptoeprint:2006/452,
      author = {TingMao Chang and Jin Zhou and YaJuan Zhang and YueFei Zhu},
      title = {Hybrid Protocol For Password-based Key Exchange in Three-party Setting},
      howpublished = {Cryptology {ePrint} Archive, Paper 2006/452},
      year = {2006},
      url = {https://eprint.iacr.org/2006/452}
}