97 citations · 168 across the 8 of their papers we have counts for
8 papers
Quantum entropy model of an integrated QRNG chip
Gaëtan Gras, Anthony Martin, Jeong Woon Choi +1
We present the physical model for the entropy source of a quantum random number generator chip based on the quantum fluctuations of the photon number emitted by light-emitting diod…
Quantum messages with signatures forgeable in arbitrated quantum signature schemes
Taewan Kim, Jeong Woon Choi, Nam-Su Jho +1
Even though a method to perfectly sign quantum messages has not been known, the arbitrated quantum signature scheme has been considered as one of good candidates. However, its forg…
Security problem on arbitrated quantum signature schemes
Jeong Woon Choi, Ku-Young Chang, Dowon Hong
Until now, there have been developed many arbitrated quantum signature schemes implemented with a help of a trusted third party. In order to guarantee the unconditional security, m…
Non-static Quantum Bit Commitment
Jeong Woon Choi, Dowon Hong, Ku-Young Chang +2
Quantum bit commitment has been known to be impossible by the independent proofs of Mayers, and Lo and Chau, under the assumption that the whole quantum states right before the unv…
Quantum states for perfectly secure secret sharing
Dong Pyo Chi, Jeong Woon Choi, Jeong San Kim +2
In this work, we investigate what kinds of quantum states are feasible to perform perfectly secure secret sharing, and present its necessary and sufficient conditions. We also show…
Monogamy equality in quantum systems
Dong Pyo Chi, Jeong Woon Choi, Kabgyun Jeong +3
There is an interesting property about multipartite entanglement, called the monogamy of entanglement. The property can be shown by the monogamy inequality, called the Coffman-Kund…