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Security goals and model
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Classroom Contents
TextSecure Protocol - Present and Future
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- 1 Intro
- 2 Open Whisper Systems . Founded by Moxie Marlinspike • Goal of making private communications simple
- 3 Security goals and model
- 4 Overview
- 5 Stateful protocol • First message creates a session based on keys from a key directory
- 6 Public key encryption
- 7 Signed prekeys
- 8 Signed & one-time prekeys
- 9 Key agreement
- 10 Diffie-Hellman encryption
- 11 Diffie-Hellman authentication
- 12 Symmetric-key ratchet
- 13 DH ratchet
- 14 Axolotl ratchet
- 15 Alice's initial message
- 16 Bob's response
- 17 Alice's response
- 18 Multi-party (sender keys)
- 19 Multi-device
- 20 End-To-End encryption and
- 21 Authenticating public keys
