@Article{cmc.2020.06217,
AUTHOR = {Chunpeng Ge, Jinyue Xia, Liming Fang},
TITLE = {Key-Private Identity-Based Proxy Re-Encryption},
JOURNAL = {Computers, Materials \& Continua},
VOLUME = {63},
YEAR = {2020},
NUMBER = {2},
PAGES = {633--647},
URL = {http://www.techscience.com/cmc/v63n2/38534},
ISSN = {1546-2226},
ABSTRACT = {An identity-based proxy re-encryption scheme (IB-PRE) allows a semi-trusted 
proxy to convert an encryption under one identity to another without revealing the 
underlying message. Due to the fact that the proxy was semi-trusted, it should place as 
little trust as necessary to allow it to perform the translations. In some applications such 
as distributed file system, it demands the adversary cannot identify the sender and 
recipient’s identities. However, none of the exiting IB-PRE schemes satisfy this 
requirement. In this work, we first define the security model of key-private IB-PRE. 
Finally, we propose the first key-private IB-PRE scheme. Our scheme is chosen plaintext 
secure (CPA) and collusion resistant in the standard model.},
DOI = {10.32604/cmc.2020.06217}
}