# Copyright 2020 The Matrix.org Foundation C.I.C.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
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#
#     http://www.apache.org/licenses/LICENSE-2.0
#
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x-addedInMatrixVersion: "1.1"
type: object
title: m.signing_key_update
description: |-
  An EDU that lets servers push details to each other when one of their users
  updates their cross-signing keys.
allOf:
  - $ref: ../edu.yaml
  - type: object
    properties:
      edu_type:
        type: enum
        enum: ['m.signing_key_update']
        description: The string `m.signing_update`.
        example: "m.signing_key_update"
      content:
        type: object
        description: The updated signing keys.
        title: Signing Key Update
        properties:
          user_id:
            type: string
            description: The user ID whose cross-signing keys have changed.
            example: "@alice:example.com"
          master_key:
            type: object
            $ref: ../../../client-server/definitions/cross_signing_key.yaml
            example: {
              "user_id": "@alice:example.com",
              "usage": ["master"],
              "keys": {
                "ed25519:base64+master+public+key": "base64+master+public+key",
              }
            }
          self_signing_key:
            type: object
            $ref: ../../../client-server/definitions/cross_signing_key.yaml
            example: {
              "user_id": "@alice:example.com",
              "usage": ["self_signing"],
              "keys": {
                "ed25519:base64+self+signing+public+key": "base64+self+signing+master+public+key",
              },
              "signatures": {
                "@alice:example.com": {
                  "ed25519:base64+master+public+key": "signature+of+self+signing+key"
                }
              }
            }
        required:
          - user_id
