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// Copyright 2014 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 "components/ownership/owner_key_util_impl.h"
#include <limits>
#include "base/files/file_util.h"
#include "base/logging.h"
#if defined(USE_NSS_CERTS)
#include <keythi.h>
#include "crypto/nss_key_util.h"
#include "crypto/rsa_private_key.h"
#endif
namespace ownership {
OwnerKeyUtilImpl::OwnerKeyUtilImpl(const base::FilePath& public_key_file)
: public_key_file_(public_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(public_key_file_, &file_size)) {
#if defined(OS_CHROMEOS)
LOG(ERROR) << "Could not get size of " << public_key_file_.value();
#endif // defined(OS_CHROMEOS)
return false;
}
if (file_size > static_cast<int64>(std::numeric_limits<int>::max())) {
LOG(ERROR) << public_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(public_key_file_,
reinterpret_cast<char*>(vector_as_array(output)),
safe_file_size);
return data_read == safe_file_size;
}
#if defined(USE_NSS_CERTS)
crypto::RSAPrivateKey* OwnerKeyUtilImpl::FindPrivateKeyInSlot(
const std::vector<uint8>& key,
PK11SlotInfo* slot) {
if (!slot)
return nullptr;
crypto::ScopedSECKEYPrivateKey private_key(
crypto::FindNSSKeyFromPublicKeyInfoInSlot(key, slot));
if (!private_key || SECKEY_GetPrivateKeyType(private_key.get()) != rsaKey)
return nullptr;
#if defined(USE_OPENSSL)
// TODO(davidben): This assumes that crypto::RSAPrivateKey also uses NSS.
// https://crbug.com/478777
NOTIMPLEMENTED();
return nullptr;
#else
return crypto::RSAPrivateKey::CreateFromKey(private_key.get());
#endif
}
#endif // defined(USE_NSS_CERTS)
bool OwnerKeyUtilImpl::IsPublicKeyPresent() {
return base::PathExists(public_key_file_);
}
} // namespace ownership
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