58 lines
1.7 KiB
C++
58 lines
1.7 KiB
C++
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "common/libs/utils/base64.h"
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#include <cstddef>
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#include <cstdint>
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#include <string>
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#include <vector>
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#include <openssl/base64.h>
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namespace cuttlefish {
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bool EncodeBase64(const void *data, std::size_t size, std::string *out) {
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std::size_t enc_len = 0;
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auto len_res = EVP_EncodedLength(&enc_len, size);
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if (!len_res) {
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return false;
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}
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out->resize(enc_len);
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auto enc_res =
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EVP_EncodeBlock(reinterpret_cast<std::uint8_t *>(out->data()),
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reinterpret_cast<const std::uint8_t *>(data), size);
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if (enc_res < 0) {
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return false;
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}
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out->resize(enc_res); // Don't count the terminating \0 character
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return true;
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}
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bool DecodeBase64(const std::string &data, std::vector<std::uint8_t> *buffer) {
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std::size_t out_len;
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auto len_res = EVP_DecodedLength(&out_len, data.size());
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if (!len_res) {
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return false;
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}
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buffer->resize(out_len);
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return EVP_DecodeBase64(buffer->data(), &out_len, out_len,
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reinterpret_cast<const std::uint8_t *>(data.data()),
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data.size());
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}
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} // namespace cuttlefish
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