33 citations · 66 across the 11 of their papers we have counts for
13 papers
Classical Verifier Position Verification from Non-Local Games
Wen Yu Kon, Fatih Kaleoglu, Kaushik Chakraborty
Secure position verification certifies that a remote prover occupies a claimed location, a task that is provably impossible with classical resources alone against colluding adversa…
Loss-Tolerant Quantum Position Verification for Metropolitan Area Networks
Wen Yu Kon, Niccolò Bigagli, Andrew Conrad +13
A spacetime seal, a cryptographic guarantee that a digital event has occurred at an approved location and time, can augment a digital signature with location attestation for legal,…
Certified randomness amplification by dynamically probing remote random quantum states
Minzhao Liu, Pradeep Niroula, Matthew DeCross +49
Cryptography depends on truly unpredictable numbers, but physical sources emit biased or correlated bits. Quantum mechanics enables the amplification of imperfect randomness into n…
Quantum-Safe Identity Verification using Relativistic Zero-Knowledge Proof Systems
Yao Ma, Wen Yu Kon, Jefferson Chu +3
Identity verification is the process of confirming an individual's claimed identity, which is essential in sectors like finance, healthcare, and online services to ensure security…
Efficient Multi-basis Quantum Position Verification Secure against Generalized Adversaries
Wen Yu Kon, Ignatius William Primaatmaja, Kaushik Chakraborty +1
Quantum position verification (QPV) enables multiple verifiers to certify a prover's location using quantum communication and physical assumptions. With experimental demonstrations…
Certified randomness using a trapped-ion quantum processor
Minzhao Liu, Ruslan Shaydulin, Pradeep Niroula +29
While quantum computers have the potential to perform a wide range of practically important tasks beyond the capabilities of classical computers, realizing this potential remains a…
Discrete-modulated continuous-variable quantum key distribution secure against general attacks
Ignatius William Primaatmaja, Wen Yu Kon, Charles Lim
In recent years, discrete-modulated continuous-variable quantum key distribution (DM-CV-QKD) has gained traction due to its practical advantages: cost-effectiveness, simple state p…
Quantum Authenticated Key Expansion with Key Recycling
Wen Yu Kon, Jefferson Chu, Kevin Han Yong Loh +5
Data privacy and authentication are two main security requirements for remote access and cloud services. While QKD has been explored to address data privacy concerns, oftentimes it…
On the Relativistic Zero Knowledge Quantum Proofs of Knowledge
Kaiyan Shi, Kaushik Chakraborty, Wen Yu Kon +3
We initiate the study of relativistic zero-knowledge quantum proof of knowledge systems with classical communication, formally defining a number of useful concepts and constructing…
Sampled sub-block hashing for large input randomness extraction
Hong Jie Ng, Wen Yu Kon, Ignatius William Primaatmaja +2
Randomness extraction is an essential post-processing step in practical quantum cryptography systems. When statistical fluctuations are taken into consideration, the requirement of…
Experimental symmetric private information retrieval with measurement-device-independent quantum network
Chao Wang, Wen Yu Kon, Hong Jie Ng +1
Secure information retrieval is an essential task in today's highly digitised society. In some applications, it may be necessary that user query's privacy and database content's se…
Estimating the photon-number distribution of photonic channels with realistic devices and applications in photonic quantum information processing
Emilien Lavie, Ignatius William Primaatmaja, Wen Yu Kon +2
Characterising the input-output photon-number distribution of an unknown optical quantum channel is an important task for many applications in quantum information processing. Ideal…
Provably-secure symmetric private information retrieval with quantum cryptography
Wen Yu Kon, Charles Ci Wen Lim
Private information retrieval (PIR) is a database query protocol that provides user privacy, in that the user can learn a particular entry of the database of his interest but his q…