Implements encryptor_openssl.cc

base/crypto/encryptor_win.cc

 // Copyright (c) 2010 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 "base/crypto/encryptor.h"
 
 #include <vector>
 
 #include "base/crypto/symmetric_key.h"
 
@@ skipping 75 matching lines @@
                          &data_len, total_len);
   if (!ok)
     return false;
 
   ciphertext->assign(reinterpret_cast<char*>(&tmp[0]), data_len);
   return true;
 }
 
 bool Encryptor::Decrypt(const std::string& ciphertext, std::string* plaintext) {
   DWORD data_len = ciphertext.size();
+  if (data_len == 0)
+    return false;
 
   std::vector<BYTE> tmp(data_len);
   memcpy(&tmp[0], ciphertext.data(), data_len);
 
   BOOL ok = CryptDecrypt(capi_key_.get(), NULL, TRUE, 0, &tmp[0], &data_len);
   if (!ok)
     return false;
 
   DCHECK_GT(tmp.size(), data_len);
 
   plaintext->assign(reinterpret_cast<char*>(&tmp[0]), data_len);
   return true;
 }
 
 }  // namespace base