Related Key Secure PKE from Hash Proof Systems
In this paper we propose a framework for constructing public key encryption against related key attacks from hash proof systems in the standard model. Compared with the construction of Wee (PKC2012), our framework avoids the use of one-time signatures. We show that the schemes presented by Jia et al. (ProvSec2013) could fit into our framework. And we give more instantiations of the proposed framework based on the QR and DCR assumptions for affine key related functions.