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There are several kind of quantum key distribution (QKD) protocols as of today. Are you looking for a particular one? The best known QKD protocol goes by the name BB84 after its inventors Bennett and Brassard and the year in which they presented their work. Searching on the Internet, I found this link http://fredhenle.net/bb84/demo.php with a simulation ...


The obvious approach is to help Bob learn $s_0 \oplus (s_0 \oplus s_1) \times c$, presumably using $F$ to help him learn this information. So, here is the natural protocol: Alice and Bob invoke $F$. Alice provides the input $s_0 \oplus s_1$, Bob provides the input $c$. Alice learns $p$ and Bob learns $q$, where we are guaranteed that $p \oplus q = (s_0 ...

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