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// Copyright (c) 2012 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 "chrome/browser/chromeos/settings/owner_key_util.h"
#include <limits>
#include "base/file_util.h"
#include "base/logging.h"
#include "base/path_service.h"
#include "base/stl_util.h"
#include "chromeos/chromeos_paths.h"
#include "crypto/rsa_private_key.h"
namespace chromeos {
///////////////////////////////////////////////////////////////////////////
// OwnerKeyUtil
OwnerKeyUtil* OwnerKeyUtil::Create() {
base::FilePath owner_key_path;
CHECK(PathService::Get(chromeos::FILE_OWNER_KEY, &owner_key_path));
return new OwnerKeyUtilImpl(owner_key_path);
}
OwnerKeyUtil::OwnerKeyUtil() {}
OwnerKeyUtil::~OwnerKeyUtil() {}
///////////////////////////////////////////////////////////////////////////
// OwnerKeyUtilImpl
OwnerKeyUtilImpl::OwnerKeyUtilImpl(const base::FilePath& key_file)
: key_file_(key_file) {}
OwnerKeyUtilImpl::~OwnerKeyUtilImpl() {}
bool OwnerKeyUtilImpl::ImportPublicKey(std::vector<uint8>* output) {
// Get the file size (must fit in a 32 bit int for NSS).
int64 file_size;
if (!base::GetFileSize(key_file_, &file_size)) {
LOG(ERROR) << "Could not get size of " << key_file_.value();
return false;
}
if (file_size > static_cast<int64>(std::numeric_limits<int>::max())) {
LOG(ERROR) << key_file_.value() << "is "
<< file_size << "bytes!!! Too big!";
return false;
}
int32 safe_file_size = static_cast<int32>(file_size);
output->resize(safe_file_size);
if (safe_file_size == 0) {
LOG(WARNING) << "Public key file is empty. This seems wrong.";
return false;
}
// Get the key data off of disk
int data_read = base::ReadFile(
key_file_,
reinterpret_cast<char*>(vector_as_array(output)),
safe_file_size);
return data_read == safe_file_size;
}
crypto::RSAPrivateKey* OwnerKeyUtilImpl::FindPrivateKey(
const std::vector<uint8>& key) {
return crypto::RSAPrivateKey::FindFromPublicKeyInfo(key);
}
crypto::RSAPrivateKey* OwnerKeyUtilImpl::FindPrivateKeyInSlot(
const std::vector<uint8>& key,
PK11SlotInfo* slot) {
return crypto::RSAPrivateKey::FindFromPublicKeyInfoInSlot(key, slot);
}
bool OwnerKeyUtilImpl::IsPublicKeyPresent() {
return base::PathExists(key_file_);
}
} // namespace chromeos
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