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 15 namespace 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. 32 typedef std::pair<std::string, std::string> KeyIdAndKeyPair; 33 typedef std::vector<KeyIdAndKeyPair> KeyIdAndKeyPairs; 34 35 // Converts a single |key|, |key_id| pair to a JSON Web Key Set. 36 MEDIA_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. 42 MEDIA_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