--- allOf: - $ref: core-event-schema/event.yaml description: |- Sends the ephemeral public key for a device to the partner device. Typically sent as a [to-device](/client-server-api/#send-to-device-messaging) event. properties: content: properties: transaction_id: type: string description: |- An opaque identifier for the verification process. Must be the same as the one used for the `m.key.verification.start` message. key: type: string description: |- The device's ephemeral public key, encoded as unpadded base64. required: - transaction_id - key type: object type: enum: - m.key.verification.key type: string type: object