🔐 BB84 · didactic simulator quantum key distribution

Alice sends random bits encoded in two bases (+ and ×). Bob measures randomly. Compare bases to distill a secret key. Toggle Eve to see her introduce errors.

📨 Your message (converted to 8‑bit ASCII)

👤 Enable Eve eavesdropper

Enter a message and click the button to start the simulation.

* Only the first 8 bits are shown in the table to keep it clear. Full binary conversion is used for the final sifted key.