Additive-Homomorphic Functional Commitments and Applications to Homomorphic Signatures

ePrint Report: Additive-Homomorphic Functional Commitments and Applications to Homomorphic Signatures

Dario Catalano, Dario Fiore, Ida Tucker

Functional Commitments (FC) allow one to reveal functions of committed data in a succinct and verifiable way. In this paper we put forward the notion of additive-homomorphic FC and show two efficient, pairing-based, realizations of this primitive supporting multivariate polynomials of constant degree and monotone span programs, respectively. We also show applications of the new primitive in the contexts of homomorphic signatures: we show …

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