Anonymous identity-based encryption scheme without random oracles
Xinpeng Zhang · 2012
The anonymous identity-based encryption(IBE) schemes are currently only selective-ID secure without random oracles or provably secure under a complex assumption.An anonymous IBE scheme based on decisional bilinear Diffie-Hellman(BDH) assumption in a group of composite order was proposed,which is ANON-IND-ID-CPA secure without random oracles and only needs two bilinear pairing computations.This scheme is more secure and efficient than the existing ones.