doi: 10.7763/IJMLC.2012.V2.134
Formal Security of an Identity-Based Proxy Signature Scheme in the Random Oracle Model
Mohammad Beheshti-Atashgah1
,
Mahmoud Gardeshi2 ,
Majid Bayat3
- 1Research Center of Intelligent Signal Processing, Tehran, Iran.
- 2Department of Electrical and Computer Engineering, Imam Hossein University, Tehran, Iran.
- 3Department of Mathematics & Computer Science, Tarbiat Moallem University, Tehran, Iran.
Abstract
Currently, ID-based public key cryptography has got many useful achievements and attracted much attention. Proxy signature scheme enables an original signer to delegate his\her signing capability to a proxy signer to sign messages on behalf of the original signer. In this paper, we will theoretically discuss on the provable security of an ID-based proxy signature scheme. In fact, we analyze the ID-based proxy signature scheme proposed by Mala et al.’s and show that this scheme is secure in the random oracle model. We show that their scheme’s security can be reduced to the hardness of CDHP.
Keywords
- ID-based proxy signature scheme
- provable security
- random oracle model
- pairing
How to Cite
Mohammad Beheshti-Atashgah, Mahmoud Gardeshi, and Majid Bayat, "Formal Security of an Identity-Based Proxy Signature Scheme in the Random Oracle Model," International Journal of Machine Learning, vol. 2, no. 3, pp. 298-300, 2012. https://doi.org/10.7763/IJMLC.2012.V2.134
Copyright & License
Copyright © 2012 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).