Quantum Blind Rotation for Fast Functional Bootstrapping
Quantum blind rotation technique reduces the exponential bootstrapping cost of FHE, inching privacy-preserving encrypted computation closer to practical latency targets.
Summary written by editorial AI · Source link below
arXiv:2409.20182v4 Announce Type: replace-cross Abstract: Fully homomorphic encryption (FHE) enables privacy-preserving cloud computation, but its efficiency is often limited by the cost of bootstrapping. In particular, existing functional bootstrapping techniques have complexity exponential in the plaintext size. In this work, we show that employing a single quantum server can reduce this dependence. We propose a quantum functional bootstrapping algorithm that allows to evaluate any efficien
Editorial Analysis
Faster FHE bootstrapping via quantum methods could eventually enable real-time encrypted analytics, but remains pre-commercial—worth monitoring for long-horizon crypto strategies.
Forward-looking interpretation drafted by editorial AI under human review — not a reproduction of the source. See methodology.
External link — opens at arXiv Crypto & Security in a new tab.
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