Quantum cryptography : security analysis of multiuser quantum communication with embedded authentication

Three quantum cryptographic protocols of multiuser quantum networks with embedded authentication, allowing quantum key distribution or quantum direct communication, are discussed in this work. The security of the protocols against different types of attacks is analysed with a focus on various impersonation attacks and the man-in-the-middle attack. On the basis of the security analyses several improvements are suggested and implemented in order to adjust the investigated vulnerabilities. Furthermore, the impact of the eavesdropping test procedure on impersonation attacks is outlined. The framework of a general eavesdropping test is proposed to provide additional protection against security risks in impersonation attacks.

Level thesis:degree_level

master

Grantor dc:publisher

Universität Potsdam

Author dc:creator

• Lunemann, Carolin

• Kryptographie
• Quantenkryptographie
• Authentifizierung
• Netzwerk
• cryptography
• quantum cryptography
• authentication
• multiuser
• network

Repository record source_url

https://publishup.uni-potsdam.de/frontdoor/index/index/docId/1165

OAI identifier oai:identifier

oai:kobv.de-opus4-uni-potsdam:1165