Position-based quantum cryptography:Impossibility and constructions

Mathematics

• Quantum Cryptography 100%
• Communication 32%
• Quantum State 26%
• Entanglement 17%
• Key Agreement 11%
• Secure Communication 10%
• Authentication 9%
• Failure Probability 9%
• Cryptography 7%
• Attack 7%
• Subsystem 6%
• Calculate 5%
• Corollary 5%
• Unknown 4%
• Generalise 3%
• Arbitrary 3%
• Zero 3%
• Model 2%

Engineering & Materials Science

• Quantum cryptography 90%
• Communication 26%
• Secure communication 11%
• Authentication 9%
• Cryptography 8%