Comments and Improvements on Chameleon Hashing Without Key Exposure Based on Factoring

Xiaofeng Chen; Haibo Tian; Fangguo Zhang

Paper 2009/319

Comments and Improvements on Chameleon Hashing Without Key Exposure Based on Factoring

Xiaofeng Chen, Haibo Tian, and Fangguo Zhang

Abstract

In this paper, we present some security flaws of the key-exposure free chameleon hash scheme based on factoring \cite{GWX07}. Besides, we propose an improved chameleon hash scheme without key exposure based on factoring which enjoys all the desired security notions of chameleon hashing.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Published elsewhere. Unknown where it was published
Contact author(s): xfchen @ xidian edu cn
History: 2009-07-01: received
Short URL: https://ia.cr/2009/319
License: CC BY

BibTeX

@misc{cryptoeprint:2009/319,
      author = {Xiaofeng Chen and Haibo Tian and Fangguo Zhang},
      title = {Comments and Improvements on Chameleon Hashing Without Key Exposure Based on Factoring},
      howpublished = {Cryptology {ePrint} Archive, Paper 2009/319},
      year = {2009},
      url = {https://eprint.iacr.org/2009/319}
}