That’s misleading. There is a “message” that is sent between clients to ratchet the group forward and provide forward secrecy between epochs (when the full ratchet tree is refreshed), however the user doesn’t have to think about that at all and happens on a regular basis in any normal 1-1 or group chat.
There is also another layer of forward secrecy that is provided by the message keys themselves (basically using the same mechanic as Signal).
JeffG / JeffG
npub1zu…6c2uc
2024-08-25 12:53:23
in reply to nevent1q…7gkr
Author Public Key
npub1zuuajd7u3sx8xu92yav9jwxpr839cs0kc3q6t56vd5u9q033xmhsk6c2ucPublished at
2024-08-25 12:53:23Event JSON
{
"id": "ff010be2cd5d51efe4b7d80bef591d4491617d61dff0771b285296877e4fac0a",
"pubkey": "1739d937dc8c0c7370aa27585938c119e25c41f6c441a5d34c6d38503e3136ef",
"created_at": 1724583203,
"kind": 1,
"tags": [
[
"e",
"fc6ac2bff555642f13f4165bbebae8351f0340f5beee8da993a1e4578cd68221",
"",
"root"
],
[
"e",
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"wss://junxingwang.org",
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],
[
"p",
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]
],
"content": "That’s misleading. There is a “message” that is sent between clients to ratchet the group forward and provide forward secrecy between epochs (when the full ratchet tree is refreshed), however the user doesn’t have to think about that at all and happens on a regular basis in any normal 1-1 or group chat. \n\nThere is also another layer of forward secrecy that is provided by the message keys themselves (basically using the same mechanic as Signal).",
"sig": "643cc8ed1934deca20eb8db5a322b1cfca34149f203a75338a4435b4caf509c069edd34a1d0a44feded4dce7d613b6e278569fd78c72f6152649f657fd3283c1"
}