4 papers
Breaking the Bounded Entanglement Barrier for Quantum Position Verification
Amit Behera, Vipul Goyal
Position verification, introduced by Chandran et al. (SIAM J. Computing 2014), allows verifiers to test a prover's claimed position by an interactive protocol. Classical position v…
Decisional Monogamy-of-Entanglement for Coset States and Applications to Unclonable Cryptography with Correlated Challenges
Amit Behera, Alper Cakan, Alper Çakan +1
A main application of quantum information in cryptography is copy-protection, where we encode a functionality (such as a decryption key or software) into a reusable quantum state s…
Proofs of No Intrusion
Vipul Goyal, Justin Raizes
A central challenge in data security is not just preventing theft, but detecting whether it has occurred. Classically, this is impossible because a perfect copy leaves no evidence.…
How to Delete Without a Trace: Certified Deniability in a Quantum World
Alper Çakan, Vipul Goyal, Justin Raizes
Is it possible to comprehensively destroy a piece of quantum information, so that nothing is left behind except the memory of whether one had it at one point? For example, various…