Universal limitations on quantum key distribution over a network. - Siddhartha Das; Stefan Bäuml; Marek Winczewski; Karol Horodecki (CoRR, 2019)

Fundamental limitations on device-independent quantum conference key agreement. - Karol Horodecki; Marek Winczewski; Siddhartha Das (CoRR, 2021)

Fundamental Limitations within the Selected Cryptographic Scenarios and Supra-Quantum Theories. - Marek Winczewski (CoRR, 2023)

Complete extension: the non-signaling analog of quantum purification. - Marek Winczewski; Tamoghna Das; John H. Selby; Karol Horodecki; Pawel Horodecki; Lukasz Pankowski; Marco Piani; Ravishankar Ramanathan (Quantum, 2023)