Universally Composable Secure Group Communication

Youliang Tian; Changgen Peng

Paper 2014/647

Universally Composable Secure Group Communication

Youliang Tian and Changgen Peng

Abstract

This paper analyzes group communication within the universally composable framework. We first propose the group communication model, identity-based signcrytion model and group key distribution model in the UC framework by designing the ideal functionality $\mathcal {F}_{SAGCOM}$, $\mathcal {F}_{IDSC}$ and $\mathcal {F}_{GKD}$, respectively. Then, we construct a UC secure identity-based signcryption protocol $\pi_{IDSC}$. Moreover, we shows that the identity-based signcryption $\pi_{IDSC}$ securely realizes the ideal functionality $\mathcal {F}_{IDSC}$ if and only if the corresponding protocol IDSC is secure. Finally, based on the identity-based protocol, we propose a group communication scheme $\pi_{SAGCOM}$, which can securely realizes the ideal functionality $\mathcal {F}_{SAGCOM}$ in the $(\mathcal {F}_{IDSC},\mathcal {F}_{GKD})$-hybrid model.

Metadata

Available format(s): PDF
Publication info: Preprint. MINOR revision.
Keywords: Universally composable secure Secure group communication Identity-based signcrytion Many-to-many group communication
Contact author(s): youliangtian @ 163 com
History: 2014-08-28: revised; 2014-08-27: received; See all versions
Short URL: https://ia.cr/2014/647
License: CC BY

BibTeX

@misc{cryptoeprint:2014/647,
      author = {Youliang Tian and Changgen Peng},
      title = {Universally Composable Secure Group Communication},
      howpublished = {Cryptology {ePrint} Archive, Paper 2014/647},
      year = {2014},
      url = {https://eprint.iacr.org/2014/647}
}