1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 // Media device IDs come in two flavors: The machine-wide unique ID of
6 // the device, which is what we use on the browser side, and one-way
7 // hashes over the unique ID and a security origin, which we provide
8 // to code on the renderer side as per-security-origin IDs.
10 #ifndef CONTENT_PUBLIC_BROWSER_MEDIA_DEVICE_ID_H_
11 #define CONTENT_PUBLIC_BROWSER_MEDIA_DEVICE_ID_H_
15 #include "content/common/content_export.h"
16 #include "content/public/browser/resource_context.h"
21 // Generates a one-way hash of a device's unique ID usable by one
22 // particular security origin.
23 CONTENT_EXPORT std::string GetHMACForMediaDeviceID(
24 const ResourceContext::SaltCallback& sc,
25 const GURL& security_origin,
26 const std::string& raw_unique_id);
28 // Convenience method to check if |device_guid| is an HMAC of
29 // |raw_device_id| for |security_origin|.
30 CONTENT_EXPORT bool DoesMediaDeviceIDMatchHMAC(
31 const ResourceContext::SaltCallback& sc,
32 const GURL& security_origin,
33 const std::string& device_guid,
34 const std::string& raw_unique_id);
36 } // namespace content
38 #endif // CONTENT_PUBLIC_BROWSER_MEDIA_DEVICE_ID_H_