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End to end encryption by default

By default, Element will create encrypted DM rooms if the user you are chatting with has keys uploaded on their account. For private room creation, Element will default to encryption on but give you the choice to opt-out.

Disabling encryption by default

Set the following on your homeserver's /.well-known/matrix/client config:

{
  "io.element.e2ee": {
    "default": false
  }
}

Secure backup

By default, Element strongly encourages (but does not require) users to set up Secure Backup so that cross-signing identity key and message keys can be recovered in case of a disaster where you lose access to all active devices.

Requiring secure backup

To require Secure Backup to be configured before Element can be used, set the following on your homeserver's /.well-known/matrix/client config:

{
  "io.element.e2ee": {
    "secure_backup_required": true
  }
}

Preferring setup methods

By default, Element offers users a choice of a random key or user-chosen passphrase when setting up Secure Backup. If a homeserver admin would like to only offer one of these, you can signal this via the /.well-known/matrix/client config, for example:

{
  "io.element.e2ee": {
    "secure_backup_setup_methods": ["passphrase"]
  }
}

The field secure_backup_setup_methods is an array listing the methods the client should display. Supported values currently include key and passphrase. If the secure_backup_setup_methods field is not present or exists but does not contain any supported methods, Element will fallback to the default value of: ["key", "passphrase"].

Compatibility

The settings above were first proposed under a im.vector.riot.e2ee key, which is now deprecated. Element will check for either key, preferring io.element.e2ee if both exist.