Latest Papers

Efficient Function-Hiding Functional Encryption: From Inner-Products to Orthogonality

Authors: Manuel Barbosa, Dario Catalano, Azam Soleimanian and Bogdan Warinschi 


We construct functional encryption (FE) schemes for the orthogonality (OFE) relation where each ciphertext encrypts some vector x and each decryption key, associated to some vector y, allows to determineif x isorthogonalto y ornot. Motivated by compelling applications, we aim at schemes which are function hidding, i.e. y is not leaked.