cryptohome/dbus_bindings/org.chromium.CryptohomeKeyDelegateInterface.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!--
  Copyright 2018 The Chromium OS Authors. All rights reserved.
  Use of this source code is governed by a BSD-style license that can be
  found in the LICENSE file.
-->
<node name="/org/chromium/CryptohomeKeyDelegate">
  <!-- Interface for a delegate service to be used by cryptohome for operations
       related to user protection keys.
  -->
  <interface name="org.chromium.CryptohomeKeyDelegateInterface">
    <!-- Called by cryptohome when it needs to request a challenge in order to
         authenticate the user using a key that has the
         KEY_TYPE_CHALLENGE_RESPONSE type.
         account_id: binary serialized AccountIdentifier
         challenge_request: binary serialized KeyChallengeRequest
         challenge_response: binary serialized KeyChallengeResponse
    -->
    <method name="ChallengeKey">
      <annotation name="org.freedesktop.DBus.GLib.Async" value="true"/>
      <arg type="ay" name="account_id" direction="in" />
      <arg type="ay" name="challenge_request" direction="in" />
      <arg type="ay" name="challenge_response" direction="out" />
    </method>
  </interface>
</node>