Motivated by several new and natural applications, we initiate the study of multi-input
predicate encryption (miPE) and further develop multi-input attribute based encryption …

Multi-input functional encryption, MIFE, is a powerful generalization of functional encryption
that allows computation on encrypted data coming from multiple different data sources. In a …

We put forward two natural generalizations of predicate encryption (PE), dubbed multi-key
and multi-input PE. More in details, our contributions are threefold. Definitions. We formalize …

Functional Encryption (FE) expands traditional public-key encryption in two different ways: it
supports fine-grained access control and allows learning a function of the encrypted data. In …

We address the question of realizing privacy preserving analysis of user data. The abstract
scenario considered is that an analyst aims to evaluate a function f on some user data X. To …

This paper presents the first decentralized multi-authority attribute-based inner product
functional encryption (MA-ABIPFE) schemes supporting vectors of a priori unbounded …

In this paper, we extend Inner-Product Functional Encryption (IPFE), where there is just a
vector in the key and a vector in the single sender's ciphertext, to two-client ciphertexts. More …

Abstract Decentralized Multi-Client Functional Encryption (DMCFE) is a multi-user extension
of Functional Encryption (FE) without relying on a trusted third party. However, a …

Predicate inner product functional encryption (P-IPFE) is essentially attribute-based IPFE
(AB-IPFE) which additionally hides attributes associated to ciphertexts. In a P-IPFE, a …

Abstract In a Multi-Client Functional Encryption (MCFE) scheme, n clients each obtain a
secret encryption key from a trusted authority. During each time step t, each client i can …