Ready to begin key exchange with Bob. Click "Next Step" to continue.
💡 Tip: Public keys are shared; private keys stay secret!
Alice sends the wrapped secret to the recipient.
Watch the animation above!
The recipient uses his private key to unlock the message.
Watch the animation above to see the private key unlock the secret!
✓ Now Using Symmetric Encryption Only!
Both parties share the same secret key.
Fast and efficient for ongoing communication!
Watch messages exchange automatically above using the shared secret!
🔑 Same key used by both Alice and Bob for encryption/decryption
Symmetric Encryption
Key Insight: Asymmetric encryption (public/private keys) was only needed to establish the shared secret. Now all communication uses fast symmetric encryption!
Encrypt with public key, decrypt with private key
Enables fast two-way encrypted communication
Securely transmit shared secret using public key
Efficient once both parties have the secret