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. 4 5#ifndef MEDIA_CDM_JSON_WEB_KEY_H_ 6#define MEDIA_CDM_JSON_WEB_KEY_H_ 7 8#include <string> 9#include <utility> 10#include <vector> 11 12#include "base/basictypes.h" 13#include "media/base/media_export.h" 14 15namespace media { 16 17// A JSON Web Key Set looks like the following in JSON: 18// { "keys": [ JWK1, JWK2, ... ] } 19// A symmetric keys JWK looks like the following in JSON: 20// { "kty":"oct", 21// "kid":"AQIDBAUGBwgJCgsMDQ4PEA", 22// "k":"FBUWFxgZGhscHR4fICEiIw" } 23// There may be other properties specified, but they are ignored. 24// Ref: http://tools.ietf.org/html/draft-ietf-jose-json-web-key and: 25// http://tools.ietf.org/html/draft-jones-jose-json-private-and-symmetric-key 26// 27// For EME WD, both 'kid' and 'k' are base64 encoded strings, without trailing 28// padding. 29 30// Vector of [key_id, key_value] pairs. Values are raw binary data, stored in 31// strings for convenience. 32typedef std::pair<std::string, std::string> KeyIdAndKeyPair; 33typedef std::vector<KeyIdAndKeyPair> KeyIdAndKeyPairs; 34 35// Converts a single |key|, |key_id| pair to a JSON Web Key Set. 36MEDIA_EXPORT std::string GenerateJWKSet(const uint8* key, int key_length, 37 const uint8* key_id, int key_id_length); 38 39// Extracts the JSON Web Keys from a JSON Web Key Set. If |input| looks like 40// a valid JWK Set, then true is returned and |keys| is updated to contain 41// the list of keys found. Otherwise return false. 42MEDIA_EXPORT bool ExtractKeysFromJWKSet(const std::string& jwk_set, 43 KeyIdAndKeyPairs* keys); 44 45} // namespace media 46 47#endif // MEDIA_CDM_JSON_WEB_KEY_H_ 48