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//
// Copyright (C) 2015 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#include "tpm_manager/server/openssl_crypto_util_impl.h"
#include <base/logging.h>
#include <base/stl_util.h>
#include <openssl/rand.h>
namespace tpm_manager {
bool OpensslCryptoUtilImpl::GetRandomBytes(size_t num_bytes,
std::string* random_data) {
random_data->resize(num_bytes);
unsigned char* random_buffer =
reinterpret_cast<unsigned char*>(string_as_array(random_data));
if (RAND_bytes(random_buffer, num_bytes) != 1) {
LOG(ERROR) << "Error getting random bytes using Openssl.";
random_data->clear();
return false;
}
return true;
}
} // namespace tpm_manager
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