1 // Copyright 2014 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 #include "components/ownership/owner_key_util_impl.h" 6 7 #include <limits> 8 9 #include "base/files/file_util.h" 10 #include "base/logging.h" 11 #include "crypto/rsa_private_key.h" 12 13 namespace ownership { 14 15 OwnerKeyUtilImpl::OwnerKeyUtilImpl(const base::FilePath& public_key_file) 16 : public_key_file_(public_key_file) { 17 } 18 19 OwnerKeyUtilImpl::~OwnerKeyUtilImpl() { 20 } 21 22 bool OwnerKeyUtilImpl::ImportPublicKey(std::vector<uint8>* output) { 23 // Get the file size (must fit in a 32 bit int for NSS). 24 int64 file_size; 25 if (!base::GetFileSize(public_key_file_, &file_size)) { 26 #if defined(OS_CHROMEOS) 27 LOG(ERROR) << "Could not get size of " << public_key_file_.value(); 28 #endif // defined(OS_CHROMEOS) 29 return false; 30 } 31 if (file_size > static_cast<int64>(std::numeric_limits<int>::max())) { 32 LOG(ERROR) << public_key_file_.value() << "is " << file_size 33 << "bytes!!! Too big!"; 34 return false; 35 } 36 int32 safe_file_size = static_cast<int32>(file_size); 37 38 output->resize(safe_file_size); 39 40 if (safe_file_size == 0) { 41 LOG(WARNING) << "Public key file is empty. This seems wrong."; 42 return false; 43 } 44 45 // Get the key data off of disk 46 int data_read = 47 base::ReadFile(public_key_file_, 48 reinterpret_cast<char*>(vector_as_array(output)), 49 safe_file_size); 50 return data_read == safe_file_size; 51 } 52 53 #if defined(USE_NSS) 54 crypto::RSAPrivateKey* OwnerKeyUtilImpl::FindPrivateKeyInSlot( 55 const std::vector<uint8>& key, 56 PK11SlotInfo* slot) { 57 return crypto::RSAPrivateKey::FindFromPublicKeyInfoInSlot(key, slot); 58 } 59 #endif // defined(USE_NSS) 60 61 bool OwnerKeyUtilImpl::IsPublicKeyPresent() { 62 return base::PathExists(public_key_file_); 63 } 64 65 } // namespace ownership 66
