// Copyright (c) 2019 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 "base/hash/md5.h"

#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"

namespace base {
void MD5Init(MD5Context* context) {
  MD5_Init(context);
}

void MD5Update(MD5Context* context, const StringPiece& data) {
  MD5_Update(context, reinterpret_cast<const uint8_t*>(data.data()),
             data.size());
}

void MD5Final(MD5Digest* digest, MD5Context* context) {
  MD5_Final(digest->a, context);
}

std::string MD5DigestToBase16(const MD5Digest& digest) {
  return ToLowerASCII(HexEncode(digest.a, MD5_DIGEST_LENGTH));
}

void MD5Sum(const void* data, size_t length, MD5Digest* digest) {
  MD5(reinterpret_cast<const uint8_t*>(data), length, digest->a);
}

std::string MD5String(const StringPiece& str) {
  MD5Digest digest;
  MD5Sum(str.data(), str.size(), &digest);
  return MD5DigestToBase16(digest);
}
}  // namespace base