End-to-End Encryption
Key exchange
ECDH (P-256) + HKDF
Peer authentication
Pre-shared key + HMAC
Cipher
AES-256-GCM
Key ever seen by server
NEVER
Secure with
—
Quantum Bit Error Rate (simulated demo)
—
QBER (rolling avg, last 10 rounds) — a simulated channel-monitoring demo, separate from the real E2E key above
0%
11%
20%
30%+
● SECURE
Simulated BB84 Monitor
Protocol
BB84 (simulated)
Sample qubits/round
—
Round QBER
—
Monitor interval
2s
Eavesdropper
NOT PRESENT