104 citations · 519 across the 17 of their papers we have counts for
17 papers
Toward a Unified Security and Privacy Framework for AI-Native 6G Networks
Bidushi Barua, Ahsan Khan, Kangfeng Ye +6
Sixth Generation (6G) communication networks are expected to evolve into AI-native, highly autonomous ecosystems that integrate communication, computing, sensing, and artificial in…
Continuous-Variable Quantum Key Distribution with Composable Security and Tight Error Correction Bound towards Constrained-Device Implementations
Panagiotis Papanastasiou, Carlo Ottaviani, Stefano Pirandola +2
Constrained devices, such as smart sensors, wearable devices, and Internet of Things nodes, are increasingly prevalent in society and rely on secure communications to function prop…
An Overview of CV-MDI-QKD
Alasdair I. Fletcher, Cillian Harney, Masoud Ghalaii +6
As quantum key distribution (QKD) emerges as a robust defense against quantum computer threats, significant advancements have been realized by researchers. A pivotal focus has been…
Improved composable key rates for CV-QKD
Stefano Pirandola, Panagiotis Papanastasiou
Modern security proofs of quantum key distribution (QKD) must take finite-size effects and composable aspects into consideration. This is also the case for continuous-variable (CV)…
Data post-processing for the one-way heterodyne protocol under composable finite-size security
Alexander George Mountogiannakis, Panagiotis Papanastasiou, Stefano Pirandola
The performance of a practical continuous-variable (CV) quantum key distribution (QKD) protocol depends significantly, apart from the loss and noise of the quantum channel, on the…
Composable end-to-end security of Gaussian quantum networks with untrusted relays
Masoud Ghalaii, Panagiotis Papanastasiou, Stefano Pirandola
Gaussian networks are fundamental objects in network information theory. Here many senders and receivers are connected by physically motivated Gaussian channels while auxiliary Gau…
Security of continuous-variable quantum key distribution against canonical attacks
Panagiotis Papanastasiou, Carlo Ottaviani, Stefano Pirandola
We investigate the performance of Gaussianmodulated coherent-state QKD protocols in the presence of canonical attacks, which are collective Gaussian attacks resulting in Gaussian c…
Composably secure data processing for Gaussian-modulated continuous variable quantum key distribution
Alexander G. Mountogiannakis, Panagiotis Papanastasiou, Boris Braverman +1
Continuous-variable (CV) quantum key distribution (QKD) employs the quadratures of a bosonic mode to establish a secret key between two remote parties, and this is usually achieved…
Long-distance continuous-variable measurement-device-independent quantum key distribution with post-selection
Kieran N. Wilkinson, Panagiotis Papanastasiou, Carlo Ottaviani +2
We introduce a robust scheme for long-distance continuous-variable (CV) measurement-device-independent (MDI) quantum key distribution (QKD) in which we employ post-selection betwee…
Continuous-variable quantum cryptography with discrete alphabets: Composable security under collective Gaussian attacks
Panagiotis Papanastasiou, Stefano Pirandola
We consider continuous-variable quantum key distribution with discrete-alphabet encodings. In particular, we study protocols where information is encoded in the phase of displaced…
Continuous-variables quantum cryptography: asymptotic and finite-size security analysis
Panagiotis Papanastasiou
In this thesis we study the finite-size analysis of two continuous-variables quantum key distribution schemes. The first one is the one-way protocol using Gaussian modulation of th…
Quantum key distribution with phase-encoded coherent states: Asymptotic security analysis in thermal-loss channels
Panagiotis Papanastasiou, Cosmo Lupo, Christian Weedbrook +1
We consider discrete-alphabet encoding schemes for coherent-state quantum key distribution. The sender encodes the letters of a finite-size alphabet into coherent states whose ampl…
Gaussian one-way thermal quantum cryptography with finite-size effects
Panagiotis Papanastasiou, Carlo Ottaviani, Stefano Pirandola
We study the impact of finite-size effects on the security of thermal one-way quantum cryptography. Our approach considers coherent/squeezed states at the preparation stage, on the…
Parameter estimation with almost no public communication for continuous-variable quantum key distribution
Cosmo Lupo, Carlo Ottaviani, Panagiotis Papanastasiou +1
One crucial step in any quantum key distribution (QKD) scheme is parameter estimation. In a typical QKD protocol the users have to sacrifice part of their raw data to estimate the…
Continuous-variable quantum key distribution in fast fading channels
Panagiotis Papanastasiou, Christian Weedbrook, Stefano Pirandola
We investigate the performance of several continuous-variable quantum key distribution protocols in the presence of fading channels. These are lossy channels whose transmissivity c…
Finite size analysis of measurement device independent quantum cryptography with continuous variables
Panagiotis Papanastasiou, Carlo Ottaviani, Stefano Pirandola
We study the impact of finite-size effects on the key rate of continuous-variable (CV) measurement-device-independent (MDI) quantum key distribution (QKD). Inspired by the paramete…
Continuous-variable measurement-device-independent quantum key distribution: Composable security against coherent attacks
Cosmo Lupo, Carlo Ottaviani, Panagiotis Papanastasiou +1
We present a rigorous security analysis of Continuous-Variable Measurement-Device Independent Quantum Key Distribution (CV MDI QKD) in a finite size scenario. The security proof is…