3 papers
quant-ph2026
Public-Key Quantum Fire and Key-Fire From Classical Oracles
Alper Ãakan, Vipul Goyal, Omri Shmueli
Quantum fire is a distribution of quantum states that can be efficiently cloned, but cannot be efficiently converted into a classical string. First considered by Nehoran and Zhandr…
quant-ph2025
Multi-Copy Security in Unclonable Cryptography
Alper Ãakan, Vipul Goyal, Fuyuki Kitagawa +2
Unclonable cryptography leverages the quantum no-cloning principle to copy-protect cryptographic functionalities. While most existing works address the basic single-copy security,…
cs.CR2025
How to Copy-Protect Malleable-Puncturable Cryptographic Functionalities Under Arbitrary Challenge Distributions
Alper Ãakan, Vipul Goyal
A quantum copy-protection scheme (Aaronson, CCC 2009) encodes a functionality into a quantum state such that given this state, no efficient adversary can create two (possibly entan…