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/*
* Copyright (C) 2019 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 "adb/crypto/key.h"
#include <android-base/logging.h>
#include <openssl/bn.h>
#include <openssl/pem.h>
#include <openssl/rsa.h>
namespace adb {
namespace crypto {
// static
std::string Key::ToPEMString(EVP_PKEY* pkey) {
bssl::UniquePtr<BIO> bio(BIO_new(BIO_s_mem()));
int rc = PEM_write_bio_PKCS8PrivateKey(bio.get(), pkey, nullptr, nullptr, 0, nullptr, nullptr);
if (rc != 1) {
LOG(ERROR) << "PEM_write_bio_PKCS8PrivateKey failed";
return "";
}
BUF_MEM* mem = nullptr;
BIO_get_mem_ptr(bio.get(), &mem);
if (!mem || !mem->data || !mem->length) {
LOG(ERROR) << "BIO_get_mem_ptr failed";
return "";
}
return std::string(mem->data, mem->length);
}
} // namespace crypto
} // namespace adb
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