A New Approach for Non-Interactive Zero-Knowledge from Learning with Errors

ePrint Report: A New Approach for Non-Interactive Zero-Knowledge from Learning with Errors

Brent Waters

We put forward a new approach for achieving non-interactive zero-knowledge proofs (NIKZs) from the learning with errors (LWE) assumption (with subexponential modulus to noise ratio). We provide a LWE-based construction of a hidden bits generator that gives rise to a NIZK via the celebrated hidden bits paradigm. A noteable feature of our construction is its simplicity. Our construction employs lattice trapdoors, but beyond that uses only …

bits construction eprint report errors forward generator hidden knowledge noise non report