1 // Copyright (c) 2012 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.
5 #include "base/base64.h"
9 #include "third_party/modp_b64/modp_b64.h"
13 std::string Base64Encode(span<const uint8_t> input) {
15 output.resize(modp_b64_encode_len(input.size())); // makes room for null byte
17 // modp_b64_encode_len() returns at least 1, so output[0] is safe to use.
18 const size_t output_size = modp_b64_encode(
19 &(output[0]), reinterpret_cast<const char*>(input.data()), input.size());
21 output.resize(output_size);
25 void Base64Encode(const StringPiece& input, std::string* output) {
26 *output = Base64Encode(base::as_bytes(base::make_span(input)));
29 bool Base64Decode(const StringPiece& input, std::string* output) {
31 temp.resize(modp_b64_decode_len(input.size()));
33 // does not null terminate result since result is binary data!
34 size_t input_size = input.size();
35 size_t output_size = modp_b64_decode(&(temp[0]), input.data(), input_size);
36 if (output_size == MODP_B64_ERROR)
39 temp.resize(output_size);