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Linearly Homomorphic Commitments

Definition

Linearly homomorphic commitments are cryptographic primitives that allow computations to be performed on committed data without revealing the data itself, while also supporting linear operations like addition and scalar multiplication. These commitments permit a party to commit to a value and then later reveal it, with the guarantee that the revealed value is indeed the one committed to. Their linear property means that operations on the commitments correspond to operations on the underlying values. This technology is crucial for privacy-preserving computations in decentralized systems.