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quant-ph2026
Copy-Protection with Correlated Challenges: Point Functions and More via Decisional Coset Monogamy
Amit Behera, Alper Çakan, Vipul Goyal
Copy-protection encodes a functionality in a reusable quantum state that cannot be split into two states (freeloader adversaries) which remain simultaneously useful. Prior plain-mo…
quant-ph2024
A New World in the Depths of Microcrypt: Separating OWSGs and Quantum Money from QEFID
Amit Behera, Giulio Malavolta, Tomoyuki Morimae +2
While in classical cryptography, one-way functions (OWFs) are widely regarded as the "minimal assumption," the situation in quantum cryptography is less clear. Recent works have pu…