78 citations · 131 across the 11 of their papers we have counts for
3 papers · 2 filters
Hybrid quantum network design against unauthorized secret-key generation, and its memory cost
Omer Sakarya, Marek Winczewski, Adam Rutkowski +1
A significant number of servers that constitute the Internet are to provide private data via private communication channels to mutually anonymous registered users. Such are the ser…
Universal Limitations on Quantum Key Distribution over a Network
Siddhartha Das, Stefan Bäuml, Marek Winczewski +1
We consider the distribution of secret keys, both in a bipartite and a multipartite (conference) setting, via a quantum network and establish a framework to obtain bounds on the ac…
Limitations on device independent key secure against non signaling adversary via the squashed non-locality
Marek Winczewski, Tamoghna Das, Karol Horodecki
We initiate a systematic study to provide upper bounds on device-independent key, secure against a non-signaling adversary (NSDI). We employ the idea of "squashing" on the secrecy…