    @inproceedings {nunez2015ntrureencrypt,
	title = {NTRUReEncrypt: An Efficient Proxy Re-Encryption Scheme Based on NTRU},
	booktitle = {10th ACM Symposium on Information, Computer and Communications Security (AsiaCCS)},
	year = {2015},
	month = {04/2015},
	pages = {179-189},
	abstract = {<p>The use of alternative foundations for constructing more secure and efficient cryptographic schemes is a topic worth exploring. In the case of proxy re-encryption, the vast majority of schemes are based on number theoretic problems such as the discrete logarithm. In this paper we present NTRUReEncrypt, a new bidirectional and multihop proxy re-encryption scheme based on NTRU, a widely known lattice-based cryptosystem. We provide two versions of our scheme: the first one is based on the conventional NTRU encryption scheme and, although it lacks a security proof, remains as efficient as its predecessor; the second one is based on a variant of NTRU proposed by Stehl{\'e} and Steinfeld, which is proven CPA-secure under the hardness of the Ring-LWE problem. To the best of our knowledge, our proposals are the first proxy re-encryption schemes to be based on the NTRU primitive. In addition, we provide experimental results to show the efficiency of our proposal, as well as a comparison with previous proxy re-encryption schemes, which confirms that our first scheme outperforms the rest by an order of magnitude.</p>
},
	isbn = {978-1-4503-3245-3},
	doi = {10.1145/2714576.2714585},
	author = {David Nu{\~n}ez and Isaac Agudo and Javier Lopez}
}
