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decanus 2019-08-26 15:26:35 +02:00
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@ -55,9 +55,7 @@ Conversational Security Layer provides various cryptographic properties:
3. **Authentication** - Each participant in the conversation receives a proof of possession of a known long-term secret from all other participants. In addition, each participant is able to verify that a message was sent from the claimed source.
This assumes trust has already been established, see [Initial Trust Establishment Specification](x5.md).
5. **Forward secrecy** - Also known as perfect forward secrecy (PFS), gives assurance that session keys will not be compromised even if the private key is compromised. Also, compromising one session key will not result in compromising other sessions.
Note: The Status Protocol can work with PFS enabled and disabled. In the case of disabled PFS, the encryption is moved to the Privacy Layer and handled by Whisper. Whisper does **not** provide forward secrecy. This is a flaw of the original design which mixes security and private layer responsibilities. With PFS enabled, a message is encrypted twice.
1. **Forward secrecy** - Also known as perfect forward secrecy (PFS), gives assurance that session keys will not be compromised even if the private key is compromised. Also, compromising one session key will not result in compromising other sessions.
Please refer to [Initial Conversational Security Specification](x6.md) for more details.