Two-Input Functional Encryption for Inner Products from Bilinear Maps.

Unbounded inner product functional encryption from bilinear maps

Multi-input Inner-Product Functional Encryption from Pairings

Multi-Input Functional Encryption for Inner Products: Function-Hiding Realizations and Constructions Without Pairings

Full-Hiding (Unbounded) Multi-input Inner Product Functional Encryption from the k-Linear Assumption

From Single-Input to Multi-client Inner-Product Functional Encryption

Traceable Inner Product Functional Encryption