Encrypted Media: Check "alg":"A128KW" in AesDecryptor.

media/cdm/aes_decryptor.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/cdm/aes_decryptor.h"
 
 #include <list>
 #include <vector>
 
 #include "base/logging.h"
@@ skipping 275 matching lines @@
     return;
   }
 
   std::string key_string(reinterpret_cast<const char*>(response),
                          response_length);
 
   KeyIdAndKeyPairs keys;
   SessionType session_type = MediaKeys::TEMPORARY_SESSION;
   if (!ExtractKeysFromJWKSet(key_string, &keys, &session_type)) {
     promise->reject(
-        INVALID_ACCESS_ERROR, 0, "response is not a valid JSON Web Key Set.");
+        INVALID_ACCESS_ERROR, 0, "Response is not a valid JSON Web Key Set.");
     return;
   }
 
   // Make sure that at least one key was extracted.
   if (keys.empty()) {
     promise->reject(
-        INVALID_ACCESS_ERROR, 0, "response does not contain any keys.");
+        INVALID_ACCESS_ERROR, 0, "Response does not contain any keys.");
     return;
   }
 
   for (KeyIdAndKeyPairs::iterator it = keys.begin(); it != keys.end(); ++it) {
     if (it->second.length() !=
         static_cast<size_t>(DecryptConfig::kDecryptionKeySize)) {
-      DVLOG(1) << "Invalid key length: " << key_string.length();
+      DVLOG(1) << "Invalid key length: " << it->second.length();
       promise->reject(INVALID_ACCESS_ERROR, 0, "Invalid key length.");
       return;
     }
     if (!AddDecryptionKey(web_session_id, it->first, it->second)) {
       promise->reject(INVALID_ACCESS_ERROR, 0, "Unable to add key.");
       return;
     }
   }
 
   {
@@ skipping 210 matching lines @@
 bool AesDecryptor::DecryptionKey::Init() {
   CHECK(!secret_.empty());
   decryption_key_.reset(crypto::SymmetricKey::Import(
       crypto::SymmetricKey::AES, secret_));
   if (!decryption_key_)
     return false;
   return true;
 }
 
 }  // namespace media