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
Creative Commons Attribution
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},
      note = {\url{https://eprint.iacr.org/2006/452}},
      url = {https://eprint.iacr.org/2006/452}
}
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