Technical Program

Paper Detail

Paper Title Publicness, Privacy and Confidentiality in the Single-Serving Quantum Broadcast Channel
Paper IdentifierWE2.R8.2
Authors Farzin Salek Shishavan, Universitat Politècnica de Catalunya, Spain; Min-Hsiu Hsieh, University Technology of Sydney, Australia; Javier R. Fonollosa, Universitat Politècnica de Catalunya, Spain
Session Quantum Security and Privacy
Location Conseil, Level 5
Session Time Wednesday, 10 July, 11:40 - 13:20
Presentation Time Wednesday, 10 July, 12:00 - 12:20
Manuscript  Click here to download the manuscript
Abstract The 2-receiver broadcast channel with primary and third-party receivers is studied. The messages that are determined to be communicated are classified into public, private and confidential. The messages in the public class are common messages intended for both receivers. The private messages are intended for the primary receiver with no secrecy requirements imposed upon them. And the confidential messages are aimed exclusively to the primary receiver such that they must not be accessible to the other receiver. The encoder performs the necessary encryption by virtue of a random number generator whose rate is assumed to be limited. We find the optimal limit on the trade-off between the rates of the three messages and the source of randomness in the one-shot regime of a quantum broadcast channel.