Review Article
A Primer on Underwater Quantum Key Distribution
Table 2
Comparative summary of discrete QKD protocols.
| Protocol | Basis | Number of basis | Number of bases states |
| BB84 | Orthogonal | 2 | 4 | E91 | Nonorthogonal | 3 | 5 | BBM92 | Orthogonal | 2 | 4 | B92 | Nonorthogonal | 1 | 2 | Six-state | Conjugate | 3 | 6 | SARG04 | Orthogonal | 2 | 4 |
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