Visible to the public Biblio

Filters: Keyword is biregular irreducible functions  [Clear All Filters]
2020-12-15
Boche, H., Cai, M., Wiese, M., Deppe, C., Ferrara, R..  2020.  Semantic Security for Quantum Wiretap Channels. 2020 IEEE International Symposium on Information Theory (ISIT). :1990—1995.

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.

2020-03-04
Wiese, Moritz, Boche, Holger.  2019.  A Graph-Based Modular Coding Scheme Which Achieves Semantic Security. 2019 IEEE International Symposium on Information Theory (ISIT). :822–826.

It is investigated how to achieve semantic security for the wiretap channel. A new type of functions called biregular irreducible (BRI) functions, similar to universal hash functions, is introduced. BRI functions provide a universal method of establishing secrecy. It is proved that the known secrecy rates of any discrete and Gaussian wiretap channel are achievable with semantic security by modular wiretap codes constructed from a BRI function and an error-correcting code. A characterization of BRI functions in terms of edge-disjoint biregular graphs on a common vertex set is derived. This is used to study examples of BRI functions and to construct new ones.