Paper 2010/444 Original: eprint.iacr.org/2010/444 ↗
New Construction of Identity-based Proxy Re-encryption
Abstract
A proxy re-encryption (PRE) scheme involves three parties: Alice, Bob, and a proxy. PRE allows the proxy to translate a ciphertext encrypted under Alice's public key into one that can be decrypted by Bob's secret key. We present a general method to construct an identity-based proxy re-encryption scheme from an existing identity-based encryption scheme. The transformed scheme satisfies the properties of PRE, such as unidirectionality, non-interactivity and multi-use. Moreover, the proposed scheme has master key security, allows the encryptor to decide whether the ciphertext can be re-encrypted.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2010-10-03: last updated
- 2010-08-18: published
- Short URL
- https://ia.cr/2010/444
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2010/444,
author = {Song Luo and Jianbin Hu and Zhong Chen},
title = {New Construction of Identity-based Proxy Re-encryption},
howpublished = {Cryptology {ePrint} Archive, Paper 2010/444},
year = {2010},
url = {https://eprint.iacr.org/2010/444}
}