Practical Quantum Key Distribution with Geometrically Uniform States
arXiv:1906.10978 · doi:10.1103/PhysRevA.100.042329
Abstract
In this paper we propose a practical quantum key distribution protocol based on geometrically uniform states and a standard decoy state technique. The protocol extends the ideas used in SARG04 to the limit where the core quantum communication is secure against unambiguous state discrimination and provides some level of inherent resistance to photon number splitting attacks. Additional decoy state overlay ensures its conformity to the conventional security requirements. The protocol security is analyzed by an explicit construction of the most optimal unitary attack, which is known to reach the tight security bound in the case of BB84.
arXiv comment7 pages, 3 figures
References in corpus (12)
- Decoy State Quantum Key Distribution
- Security Aspects of Practical Quantum Cryptography
- Practical Decoy State for Quantum Key Distribution
- Quantum cryptography protocols robust against photon number splitting attacks for weak laser pulses implementations
- Quantum Cryptography with Coherent States
- Unambiguous Discrimination Between Linearly-Independent Quantum States
- The Impact of Quantum Computing on Present Cryptography
- Optimum Unambiguous Discrimination Between Linearly Independent Symmetric States
- Coding Theorems for Quantum Channels
- Coherent pulse implementations of quantum cryptography protocols resistant to photon number splitting attacks
- Unambiguous Discrimination Between Linearly Dependent States with Multiple Copies
- Optimal Eavesdropping in Quantum Cryptography. I