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Unconditional Unclonable Encryption
Prabhanjan Ananth, Amit Sahai·July 23, 2026
Quantum PhysicsCryptography
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Abstract
We give an unconditional construction of information-theoretically secure one-time private-key unclonable encryption scheme for one-bit messages, with efficient encryption and decryption and exponentially small unclonable-indistinguishability advantage.