matrix-spec-proposals

628d53ea - MSC4287: Sharing key backup preference between clients (#4287)

MSC4287: Sharing key backup preference between clients (#4287) * First draft of shared-key-backup-preference * Rename to reflect MSC number * Update MSC number in title * Small fixes and corrections * Mention the weird unstable prefix * Note that the security problem is less if clients make the setting visible * Fix wording of 'not perform key backup' * Improve wording around turning on key backups * Note that clients should notice when key backup is deleted * Note that servers can delete key backups already * Clarify that this only applies to clients that support key backup Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com> * Fix extra JSON in account_data response. Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com> * Note that clients don't have to monitor account data * Fix typo * Clarify the this only applies to client supporting encryption and key backup Co-authored-by: Travis Ralston <travisr@matrix.org> * Clarify that we are not requiring monitoring of the setting at all times. Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com> * Allow clients to consider the setting value as they wish, rather than taking it as gospel * Note that m. in the unstable prefix was a mistake * Link to a specific spec version Co-authored-by: Travis Ralston <travisr@matrix.org> * Clarify how we can mitigate malicious server control of the setting * Avoid EITHER and OR by using MAY as suggested by @Johennes * Make sure we update the property if the client updates it * Revert "Make sure we update the property if the client updates it" This is a substantive change, which should not be applied during FCP, so reverting it. This reverts commit 395b98ac3049fc88b7021436630f61c17c4c2310. --------- Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com> Co-authored-by: Travis Ralston <travisr@matrix.org> Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>