Ruhr-Uni-Bochum

Semantic Security for Quantum Wiretap Channels

2020

Conference / Medium

Authors

Roberto Ferrara Minglai Cai Moritz Wiese Christian Deppe Holger Boche

Research Hub

Research Hub A: Kryptographie der Zukunft
Research Hub B: Eingebettete Sicherheit

Research Challenges

RC 2: Quantum-Resistant Cryptography
RC 5: Physical-Layer Security

Abstract

We determine the semantic security capacity for quantum wiretap channels. We extend methods for classical channels to quantum channels to demonstrate that a strongly secure code guarantees a semantically secure code with the same secrecy rate. Furthermore, we show how to transform a non-secure code into a semantically secure code by means of biregular irreducible functions (BRI functions). We analyze semantic security for classical-quantum channels and for quantum channels.

 

Tags

Coding Theory
Complexity Theory
Information Theory
Implementation Attacks
Post-Quantum Cryptography