Signal Protocol
An end-to-end encryption protocol adopted by applications such as WhatsApp and Signal. It incorporates forward secrecy by dynamically generating ephemeral session keys for each conversation, ensuring that past messages remain secure even if long-term keys are compromised.
Core Facts
The Signal Protocol introduces the Double Ratchet algorithm to achieve forward secrecy, meaning that even if a session key is compromised, past or future messages are not affected.
WhatsApp uses end-to-end encryption, with its underlying implementation based on the Signal protocol developed by Open Whisper Systems.
Timeline (last 90 days)
The Signal protocol has begun integrating the post-quantum key encapsulation mechanism PQXDH in preparation for future quantum threats
The Signal Protocol has begun integrating the post-quantum key encapsulation mechanism PQXDH.
The Signal Protocol (also known as the Double Ratchet algorithm) has been adopted by applications such as Signal, WhatsApp, and Google Messages, and achieves forward secrecy.
All Facts (5)
The Signal Protocol introduces the Double Ratchet algorithm to achieve forward secrecy, meaning that even if a session key is compromised, past or future messages are not affected.
75%VerifiedWhatsApp uses end-to-end encryption, with its underlying implementation based on the Signal protocol developed by Open Whisper Systems.
75%UnverifiedThe Signal protocol has begun integrating the post-quantum key encapsulation mechanism PQXDH in preparation for future quantum threats
50%UnverifiedThe Signal Protocol has begun integrating the post-quantum key encapsulation mechanism PQXDH.
50%UnverifiedThe Signal Protocol (also known as the Double Ratchet algorithm) has been adopted by applications such as Signal, WhatsApp, and Google Messages, and achieves forward secrecy.
50%