Do a better job at faking simple challenge signatures.

chromeos/dbus/proto/attestation.proto

Index: chromeos/dbus/proto/attestation.proto
diff --git a/chrome/browser/chromeos/attestation/attestation_signed_data.proto b/chromeos/dbus/proto/attestation.proto
similarity index 59%
copy from chrome/browser/chromeos/attestation/attestation_signed_data.proto
copy to chromeos/dbus/proto/attestation.proto
index 7377a4d4b1268d6eef72b621bd0469c291c72d32..7282f7bc9a4048565f0d32869f1c03798b963e44 100644
--- a/chrome/browser/chromeos/attestation/attestation_signed_data.proto
+++ b/chromeos/dbus/proto/attestation.proto
@@ -1,4 +1,4 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.

[xiyuan, 2016/09/06 22:32:32]

nit: Is this a new file? If so, we should do

// Copyright 2016 The Chromium Authors. All rights reserved.

[The one and only Dr. Crash, 2016/09/07 02:43:47]

I moved it from some other location so it's not new (though initially mine was
new,so it is confusing I am sure).

 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -6,11 +6,11 @@ syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
 
-package chromeos.attestation;
+package cryptohome;
 
-// The message used by the attestation service for challenge response.
+// The wrapper message of any data and its signature.
 message SignedData {
-  // The data which was signed.
+  // The data to be signed.
   optional bytes data = 1;
   // The signature of the data field.
   optional bytes signature = 2;