Decentralized Multi-Authority Attribute-Based Inner-Product Functional Encryption: Noisy and Evasive Constructions from Lattices

We study multi-authority attribute-based functional encryption for noisy inner-product functionality, and propose two new primitives: 1 multi-authority attribute-based noisy inner-product functional encryption MA-ABNIPFE, which generalizes existing multi-authority attribute-based IPFE schemes by...