Vboot Reference: Make length types explicitly sized.

src/platform/vboot_reference/utils/firmware_utility.cc

 // Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // Utility for manipulating verified boot firmware images.
 //
 
 #include "firmware_utility.h"
 
 #include <errno.h>
@@ skipping 139 matching lines @@
 void FirmwareUtility::OutputSignedImage(void) {
   if (image_) {
     if (!WriteFirmwareImage(out_file_.c_str(), image_)) {
         cerr << "Couldn't write verified boot image to file "
                   << out_file_ <<".\n";
     }
   }
 }
 
 bool FirmwareUtility::GenerateSignedImage(void) {
-  uint32_t firmware_sign_key_pub_len;
+  uint64_t firmware_sign_key_pub_len;
   uint8_t* header_checksum;
   DigestContext ctx;
   image_ = FirmwareImageNew();
 
   Memcpy(image_->magic, FIRMWARE_MAGIC, FIRMWARE_MAGIC_SIZE);
 
   // Copy pre-processed public signing key.
   image_->firmware_sign_algorithm = (uint16_t) firmware_sign_algorithm_;
   image_->firmware_sign_key = BufferFromFile(
       firmware_key_pub_file_.c_str(),
@@ skipping 129 matching lines @@
   }
   if (fu.is_verify()) {
     cerr << "Verification ";
     if (fu.VerifySignedImage())
       cerr << "SUCCESS.\n";
     else
       cerr << "FAILURE.\n";
   }
   return 0;
 }