Authenticated Key Exchange

Chapter Contents

1. 18.1.Defining the problem
2. 18.1.1.The security model
3. 18.2.Authenticating with signatures
4. 18.2.1.Attempt: sign your Diffie-Hellman message
5. 18.2.2.Attempt: sign both Diffie-Hellman messages
6. 18.2.3.Sign the identities, too!
7. 18.2.4.The SIGMA protocol
8. 18.3.Authenticating implicitly
9. 18.3.1.Attempt: why communicate at all?
10. 18.3.2.Attempt: incorporate nonces
11. 18.3.3.Attempt: incorporate ephemeral Diffie-Hellman
12. 18.3.4.Attempt: mix long-term and ephemeral secrets
13. 18.3.5.Triple Diffie-Hellman
14. 18.4.Authenticated key exchange in practice
15. Exercises
16. Chapter Notes & References

1. Previous Chapter17. Encrypted Messaging and Ratcheting
2. Next Chapter19. Zero-Knowledge Proofs