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| -rw-r--r-- | docs/megolm.md | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/docs/megolm.md b/docs/megolm.md index 58ea10b..ec98001 100644 --- a/docs/megolm.md +++ b/docs/megolm.md @@ -276,8 +276,8 @@ messages are still secret. By itself, Megolm does not possess this property: once the key to a Megolm session is compromised, the attacker can decrypt any message that was -encrypted using a key derived from the compromised key or any following -ratchet values. +encrypted using a key derived from the compromised or subsequent ratchet +values. In order to mitigate this, the application should ensure that Megolm sessions are not used indefinitely. Instead it should periodically start a new session, @@ -298,8 +298,8 @@ In Megolm, each recipient maintains a record of the ratchet value which allows them to decrypt any messages sent in the session after the corresponding point in the conversation. If this value is compromised, an attacker can similarly decrypt past messages which were encrypted by a key derived from the -compromised key or any following ratchet values. This gives 'partial' -forrward secrecy. +compromised or subsequent ratchet values. This gives 'partial' forward +secrecy. To mitigate this issue, the application should offer the user the option to discard historical conversations, by winding forward any stored ratchet values, |