SEC GUY / JOB READY / ENCRYPTION LAB 07

Agree on a secret. Never send it.

Use browser ECDH to create two temporary key pairs and derive matching shared-secret fingerprints.

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07 / 10   KEY AGREEMENTBrowser-based trainingSafe sample data only
UNDERSTAND THE IDEA

Diffie-Hellman

THE CONCEPT

Alice and Bob exchange public keys, keep private keys local, and independently derive the same secret. Unauthenticated key exchange can still be intercepted by a man-in-the-middle.

YOUR MISSION

Run the exchange and compare Alice’s and Bob’s derived fingerprints.

INTERACTIVE / LAB 07

Try it yourself.

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Alice derivesWaiting for exchange.
Bob derivesWaiting for exchange.
ComparisonNo shared secret yet.
CHECK YOUR UNDERSTANDING

Which material must remain private during ECDH?

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