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quant-ph2004
Quantum tomographic cryptography with Bell diagonal states: non-equivalence of classical and quantum distillation protocols
Dagomir Kaszlikowski, Jenn Yang Lim, D. K. L. Oi +3
We present a generalized tomographic quantum key distribution protocol in which the two parties share a Bell diagonal mixed state of two qubits. We show that if an eavesdropper per…
quant-ph2003
Quantum Cryptography: Security Criteria Reexamined
Dagomir Kaszlikowski, Ajay Gopinathan, Yeong Cherng Liang +2
We find that the generally accepted security criteria are flawed for a whole class of protocols for quantum cryptography. This is so because a standard assumption of the security a…