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| -rw-r--r-- | docs/megolm.rst | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/docs/megolm.rst b/docs/megolm.rst index 4929349..56e5f1d 100644 --- a/docs/megolm.rst +++ b/docs/megolm.rst @@ -274,6 +274,16 @@ bytes preceding the signature. Limitations ----------- +Message Replays +--------------- + +A message can be decrypted successfully multiple times. This means that a MITM +server can send multiple copies of a message and they will successfully decrypt. + +To mitigate this it is recomendend that applications track the message indicies +they have recieved and that they reject messages with indicies that they've +already decrypted. + Lack of Transcript Consistency ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |