3 papers
quant-ph2026
How To Track Qubits Through Space and Time (Or: Sailing in a Quantum Boat)
James Bartusek, Zikuan Huang, Leo Orshansky +1
While quantum position verification aims to certify a prover's location using quantum information, existing security definitions only guarantee that part of the successful adversar…
quant-ph2026
Comparing classical and quantum conditional disclosure of secrets
Uma Girish, Alex May, Leo Orshansky +1
The conditional disclosure of secrets (CDS) setting is among the most basic primitives studied in information-theoretic cryptography. Motivated by a connection to non-local quantum…
quant-ph2026
Private Proofs of When and Where
Uma Girish, Greg Gluch, Shafi Goldwasser +3
Position verification schemes are interactive protocols where entities prove their physical location to others; this enables interactive proofs for statements of the form "I am at…