Signal Protocol
Protocolo de señal
- Date
- 2013 · confidence high
- Place
- San Francisco, California, United States
- Credited to
- Moxie Marlinspike y Trevor Perrin
- Field
- Communication
What it is
Cryptographic protocol for end-to-end encryption of messaging and voice calls, created by Open Whisper Systems by combining the Double Ratchet Algorithm with one-time prekeys.
What it led to
- Adoption by WhatsApp to encrypt the conversations of billions of users
- Use by Google Messages, Facebook Messenger and Skype in their encrypted modes
- De facto standard of modern secure messaging
- Later extension with the post-quantum PQXDH protocol