Explore Karana and Tomer’s provocative paper, Founding Quantum Cryptography on Quantum Advantage, which argues cryptographic security can be built from the hardness of quantum-sampling tasks—without relying on classical one-way functions. We unpack microcrypt, one-way puzzles, and the web of equivalences that tie quantum hardness to primitives like bit commitments and secure multi-party computation, and discuss what this could mean for a future where quantum security stays firm even if classical cryptography falters.

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