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add Olm missing properties

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Valentin Deniaud 2018-07-17 19:53:05 +02:00
parent 76071bae98
commit 669605b24a
1 changed files with 11 additions and 0 deletions
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11
specification/modules/end_to_end_encryption.rst
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@ -360,6 +360,11 @@ The plaintext payload is of the form:
"type": "<type of the plaintext event>", "type": "<type of the plaintext event>",
"content": "<content for the plaintext event>", "content": "<content for the plaintext event>",
"room_id": "<the room_id>", "room_id": "<the room_id>",
"sender": "<sender_user_id>",
"recipient": "<recipient_user_id>",
"recipient_keys": {
"ed25519": "<our_ed25519_key>"
},
"keys": { "keys": {
"ed25519": "<sender_ed25519_key>" "ed25519": "<sender_ed25519_key>"
} }
@ -370,6 +375,12 @@ The type and content of the plaintext message event are given in the payload.
We include the room ID in the payload, because otherwise the homeserver would We include the room ID in the payload, because otherwise the homeserver would
be able to change the room a message was sent in. be able to change the room a message was sent in.
Other properties are included in order to prevent an attacker from publishing
someone else's curve25519 keys as their own and subsequently claiming to have
sent messages which they didn't.
``sender`` must correspond to the user who sent the event, ``recipient`` to
the local user, and ``recipient_keys`` to the local ed25519 key.
Clients must confirm that the ``sender_key`` and the ``ed25519`` field value Clients must confirm that the ``sender_key`` and the ``ed25519`` field value
under the ``keys`` property match the keys returned by |/keys/query|_ for under the ``keys`` property match the keys returned by |/keys/query|_ for
the given user, and must also verify the signature of the payload. Without the given user, and must also verify the signature of the payload. Without