chromium/third_party/pdfium/core/fdrm/fx_crypt.cpp

// Copyright 2014 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com

#include "core/fdrm/fx_crypt.h"

#include <utility>

#include "core/fxcrt/byteorder.h"
#include "core/fxcrt/compiler_specific.h"
#include "core/fxcrt/stl_util.h"

namespace {

const uint8_t md5_padding[64] = …;

void md5_process(CRYPT_md5_context* ctx, pdfium::span<const uint8_t, 64> data) { … }

}  // namespace

void CRYPT_ArcFourSetup(CRYPT_rc4_context* context,
                        pdfium::span<const uint8_t> key) { … }

void CRYPT_ArcFourCrypt(CRYPT_rc4_context* context,
                        pdfium::span<uint8_t> data) { … }

void CRYPT_ArcFourCryptBlock(pdfium::span<uint8_t> data,
                             pdfium::span<const uint8_t> key) { … }

CRYPT_md5_context CRYPT_MD5Start() { … }

void CRYPT_MD5Update(CRYPT_md5_context* context,
                     pdfium::span<const uint8_t> data) { … }

void CRYPT_MD5Finish(CRYPT_md5_context* context,
                     pdfium::span<uint8_t, 16> digest) { … }

void CRYPT_MD5Generate(pdfium::span<const uint8_t> data,
                       pdfium::span<uint8_t, 16> digest) { … }