Home▸Physics & Mechanics▸BB84 Quantum Key Distribution with an Eavesdropper: 2D Channel View

🔐 BB84 Quantum Key Distribution with an Eavesdropper: 2D Channel View

Interactive 2D model of BB84 quantum key distribution: single photons with random polarisation bases travel through a lossy fibre, an intercept-resend eavesdropper can be dragged along the channel, and a live sifting table, QBER graph and abort-threshold gauge show how eavesdropping is detected.

Physics & Mechanics2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

Details

CategoryPhysics & Mechanics

RenderingCanvas 2D

DifficultyModerate

Target FPS60

ControlsSliders for photon rate, fibre length and loss, Eve interception probability and position, detector error and efficiency, plus seven presets and pause/step/reset; drag Eve along the fibre and click her to switch the attack on or off.

quantum cryptographyBB84quantum key distributionsecure communicationpolarisationeavesdropping

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⚙ Under the hood

quantum cryptographyBB84quantum key distributionsecure communicationpolarisationeavesdropping

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install