Quantum bit string sealing

Details Quantum bit string sealing Quantum bit string sealing

2005-02-15

arxiv.org/abs/quant-ph/0502091v3

International Journal of Quantum Information, 4, 677 (2006).

Physics

Quantum Physics

Add a discussion on the possibility of sealing a single bit in practical

Scientific paper

10.1142/S0219749906002079

Though it was proven that secure quantum sealing of a single classical bit is impossible in principle, here we propose an unconditionally secure quantum sealing protocol which seals a classical bit string. Any reader can obtain each bit of the sealed string with an arbitrarily small error rate, while reading the string is detectable. The protocol is simple and easy to be implemented. The possibility of using this protocol to seal a single bit in practical is also discussed.

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