19 files changed, 0 insertions, 1594 deletions
diff --git a/utils/CMakeLists.txt b/utils/CMakeLists.txt
deleted file mode 100644
index 27d3422..0000000
--- a/utils/CMakeLists.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-find_package(Boost REQUIRED COMPONENTS filesystem program_options)
-
-function(add_util name src)
-    set(target "util_${name}")
-    add_executable("${target}" ${src})
-    target_link_libraries("${target}" PRIVATE aesxx Boost::filesystem Boost::program_options)
-    set_target_properties("${target}" PROPERTIES OUTPUT_NAME "${name}")
-    install(TARGETS "${target}" RUNTIME DESTINATION bin)
-    if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
-        install(FILES "$<TARGET_PDB_FILE:${target}>" DESTINATION bin OPTIONAL)
-    endif()
-endfunction()
-
-set(block_util_headers block_cmd_parser.hpp block_dumper.hpp block_input.hpp data_parsers.hpp helpers/command_line.hpp)
-
-add_util(encrypt_block encrypt_block.cpp ${block_util_headers})
-add_util(decrypt_block decrypt_block.cpp ${block_util_headers})
-
-set(file_util_headers data_parsers.hpp file_cmd_parser.hpp helpers/command_line.hpp helpers/file.hpp)
-
-add_util(encrypt_file encrypt_file.cpp ${file_util_headers})
-add_util(decrypt_file decrypt_file.cpp ${file_util_headers})
-
-set(bmp_util_headers ${file_util_headers} helpers/bmp.hpp)
-
-add_util(encrypt_bmp encrypt_bmp.cpp ${bmp_util_headers})
-add_util(decrypt_bmp decrypt_bmp.cpp ${bmp_util_headers})
diff --git a/utils/README.md b/utils/README.md
deleted file mode 100644
index 3a8791c..0000000
--- a/utils/README.md
+++ /dev/null
@@ -1,158 +0,0 @@
-Utilities
-=========
-
-A couple of useful utilities are built on top of the library.
-Each of the utilities accepts the `--help` flag, which can be used to examine
-utility's detailed usage information.
-
-Block encryption
-----------------
-
-Block encryption utilities can produce verbose human-readable output, including
-round keys, intermediate initialization vector values, etc.
-They are primarily intended for debugging purposes.
-Enable verbose output by passing the `--verbose` flag.
-Please note that verbose output can only be produced when *not* using the
-"boxes" interface (the `--use-boxes` flag).
-
-### encrypt_block
-
-Encrypts blocks using the selected algorithm in the specified mode of
-operation.
-
-For example, to encrypt
-
-* the plaintext block `0x00112233445566778899aabbccddeeff`
-* using AES-128 in ECB mode
-* with key `0x000102030405060708090a0b0c0d0e0f`,
-
-run:
-
-    encrypt_block -a aes128 -m ecb 000102030405060708090a0b0c0d0e0f 00112233445566778899aabbccddeeff
-
-To encrypt
-
-* the plaintext block `0x00112233445566778899aabbccddeeff`
-* using AES-192 in OFB mode
-* with initialization vector `0x22222222222222222222222222222222`
-* and key `0x000102030405060708090a0b0c0d0e0f101112131415161718`,
-
-run:
-
-    encrypt_block -a aes192 -m ofb 000102030405060708090a0b0c0d0e0f101112131415161718 22222222222222222222222222222222 00112233445566778899aabbccddeeff
-
-### decrypt_block
-
-Decrypts blocks using the selected algorithm in the specified mode of
-operation.
-
-For example, to decrypt
-
-* the ciphertext block `0x69c4e0d86a7b0430d8cdb78070b4c55a`
-* using AES-128 in ECB mode
-* with key `0x000102030405060708090a0b0c0d0e0f`,
-
-run:
-
-    decrypt_block -a aes128 -m ecb 000102030405060708090a0b0c0d0e0f 69c4e0d86a7b0430d8cdb78070b4c55a
-
-To decrypt
-
-* the ciphertext block `0x762a5ab50929189cefdb99434790aad8`
-* using AES-192 in OFB mode
-* with initialization vector `0x22222222222222222222222222222222`
-* and key `0x000102030405060708090a0b0c0d0e0f101112131415161718`,
-
-run:
-
-    decrypt_block -a aes192 -m ofb 000102030405060708090a0b0c0d0e0f101112131415161718 22222222222222222222222222222222 bda298884f5c3a9eb7068aa7063a3b75
-
-File encryption
----------------
-
-### encrypt_file
-
-Encrypts a file using the selected algorithm in the specified mode of
-operation.
-
-For example, to encrypt the plaintext from "input.txt"
-
-* using AES-128 in ECB mode
-* with key `0x11111111111111111111111111111111`
-* and write the ciphertext to "output.txt",
-
-run:
-
-    encrypt_file -a aes128 -m ecb -k 11111111111111111111111111111111 -i input.txt -o output.txt
-
-To encrypt the plaintext from "input.txt"
-
-* using AES-192 in OFB mode
-* with key `0x111111111111111111111111111111111111111111111111`
-* and initialization vector `0x22222222222222222222222222222222`
-* and write the ciphertext to "output.txt":
-
-run
-
-    encrypt_file -a aes192 -m ofb -k 111111111111111111111111111111111111111111111111 -v 22222222222222222222222222222222 -i input.txt -o output.txt
-
-### decrypt_file
-
-Decrypts a file using the selected algorithm in the specified mode of
-operation.
-
-To decrypt the ciphertext from "input.txt"
-
-* using AES-128 in ECB mode
-* with key `0x11111111111111111111111111111111`
-* and write the plaintext to "output.txt",
-
-run
-
-    decrypt_file -a aes128 -m ecb -k 11111111111111111111111111111111 -i input.txt -o output.txt
-
-To decrypt the ciphertext from "input.txt"
-
-* using AES-192 in OFB mode
-* with key `0x111111111111111111111111111111111111111111111111`
-* and initialization vector `0x22222222222222222222222222222222`
-* and write the plaintext to "output.txt",
-
-run
-
-    decrypt_file -a aes192 -m ofb -k 111111111111111111111111111111111111111111111111 -v 22222222222222222222222222222222 -i input.txt -o output.txt
-
-Bitmap encryption
------------------
-
-These utilities were developed primarily to demonstrate the drawbacks of using
-ECB mode (namely, the fact that identical plaintext blocks get mapped to
-identical ciphertext blocks).
-This can be explicitly shown using 8-bit-per-pixel bitmaps:
-
-| Plaintext BMP    | Encrypted in ECB mode | Encrypted in CBC mode
-| ---------------- | --------------------- | ---------------------
-| ![butterfly.bmp] | ![cipherfly_ecb.bmp]  | ![cipherfly_cbc.bmp]
-
-[butterfly.bmp]: bmp/butterfly.bmp
-[cipherfly_ecb.bmp]: bmp/cipherfly_ecb.bmp
-[cipherfly_cbc.bmp]: bmp/cipherfly_cbc.bmp
-
-### encrypt_bmp
-
-Encrypts the pixels in a BMP image file, preserving the header.
-Otherwise, it's used the same way [encrypt_file](#encrypt_file) is.
-
-### decrypt_bmp
-
-Decrypts the pixels in a BMP image file, preserving the header.
-Otherwise, it's used the same way [decrypt_file](#decrypt_file) is.
-
-See also
---------
-
-* [Usage on older CPUs]
-* [License]
-
-[Usage on older CPUs]: ../README.md#usage-on-older-cpus
-[License]: ../README.md#license
diff --git a/utils/block_cmd_parser.hpp b/utils/block_cmd_parser.hpp
deleted file mode 100644
index 58f86d8..0000000
--- a/utils/block_cmd_parser.hpp
+++ /dev/null
@@ -1,124 +0,0 @@
-// Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com>
-// This file is part of the "AES tools" project.
-// For details, see https://github.com/egor-tensin/aes-tools.
-// Distributed under the MIT License.
-
-#pragma once
-
-#include "block_input.hpp"
-#include "data_parsers.hpp"
-#include "helpers/command_line.hpp"
-
-#include <aesxx/all.hpp>
-
-#include <boost/program_options.hpp>
-
-#include <deque>
-#include <iterator>
-#include <string>
-#include <utility>
-#include <vector>
-
-class BlockSettings : public command_line::SettingsParser
-{
-public:
-    aes::Algorithm algorithm = AES_AES128;
-    aes::Mode mode = AES_ECB;
-
-    bool use_boxes = false;
-    bool verbose = false;
-
-    std::vector<Input> inputs;
-
-    explicit BlockSettings(const std::string& argv0)
-        : SettingsParser{argv0}
-    {
-        visible.add_options()
-            ("verbose,v",
-                boost::program_options::bool_switch(&verbose),
-                "enable verbose output")
-            ("algorithm,a",
-                boost::program_options::value<aes::Algorithm>(&algorithm)
-                    ->required()
-                    ->value_name("NAME"),
-                "set algorithm")
-            ("mode,m",
-                boost::program_options::value<aes::Mode>(&mode)
-                    ->required()
-                    ->value_name("MODE"),
-                "set mode of operation")
-            ("use-boxes,b",
-                boost::program_options::bool_switch(&use_boxes),
-                "use the \"boxes\" interface");
-        hidden.add_options()
-            ("args",
-                boost::program_options::value<std::vector<std::string>>(&args),
-                "shouldn't be visible");
-        positional.add("args", -1);
-    }
-
-    const char* get_short_description() const override
-    {
-        return "[-h|--help] [-v|--verbose] [-a|--algorithm NAME] [-m|--mode MODE]"
-               " [-- KEY [IV] [BLOCK]...]...";
-    }
-
-    void parse(int argc, char* argv[]) override
-    {
-        SettingsParser::parse(argc, argv);
-        parse_inputs(std::deque<std::string>{
-            std::make_move_iterator(args.begin()),
-            std::make_move_iterator(args.end())});
-    }
-
-private:
-    void parse_inputs(std::deque<std::string>&& src)
-    {
-        while (!src.empty())
-            inputs.emplace_back(parse_input(src));
-    }
-
-    Input parse_input(std::deque<std::string>& src) const
-    {
-        std::string key{std::move(src.front())};
-        src.pop_front();
-
-        std::string iv;
-
-        if (aes::mode_requires_init_vector(mode))
-        {
-            if (src.empty())
-            {
-                throw boost::program_options::error{
-                    "an initialization vector is required for the selected mode of operation"};
-            }
-            iv = std::move(src.front());
-            src.pop_front();
-        }
-
-        auto blocks = parse_blocks(src);
-
-        if (aes::mode_requires_init_vector(mode))
-            return {key, iv, std::move(blocks)};
-        else
-            return {key, std::move(blocks)};
-    }
-
-    static std::vector<std::string> parse_blocks(std::deque<std::string>& src)
-    {
-        std::vector<std::string> blocks;
-
-        while (!src.empty())
-        {
-            std::string block{std::move(src.front())};
-            src.pop_front();
-            if (block == "--")
-                break;
-            blocks.emplace_back(std::move(block));
-        }
-
-        return blocks;
-    }
-
-    std::vector<std::string> args;
-};
diff --git a/utils/block_dumper.hpp b/utils/block_dumper.hpp
deleted file mode 100644
index a07d855..0000000
--- a/utils/block_dumper.hpp
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com>
-// This file is part of the "AES tools" project.
-// For details, see https://github.com/egor-tensin/aes-tools.
-// Distributed under the MIT License.
-
-#pragma once
-
-#include <aesxx/all.hpp>
-
-#include <cstdlib>
-
-#include <iostream>
-#include <type_traits>
-
-template <aes::Algorithm algorithm>
-void dump_block(
-    const char* header,
-    const typename aes::Types<algorithm>::Block& block)
-{
-    std::cout << header << ": " << aes::to_string<algorithm>(block) << "\n";
-    std::cout << aes::to_matrix_string<algorithm>(block) << "\n";
-}
-
-template <aes::Algorithm algorithm>
-void dump_plaintext(const typename aes::Types<algorithm>::Block& block)
-{
-    dump_block<algorithm>("Plaintext", block);
-}
-
-template <aes::Algorithm algorithm>
-void dump_key(const typename aes::Types<algorithm>::Key& key)
-{
-    std::cout << "Key: " << aes::to_string<algorithm>(key) << "\n\n";
-}
-
-template <aes::Algorithm algorithm>
-void dump_ciphertext(const typename aes::Types<algorithm>::Block& ciphertext)
-{
-    dump_block<algorithm>("Ciphertext", ciphertext);
-}
-
-template <aes::Algorithm algorithm>
-void dump_iv(const typename aes::Types<algorithm>::Block& iv)
-{
-    dump_block<algorithm>("Initialization vector", iv);
-}
-
-template <aes::Algorithm algorithm>
-void dump_round_keys(
-    const char* header,
-    const typename aes::Types<algorithm>::RoundKeys& round_keys)
-{
-    std::cout << header << ":\n";
-    for (std::size_t i = 0; i < aes::get_number_of_rounds<algorithm>(); ++i)
-        std::cout << "\t[" << i << "]: " << aes::to_string<algorithm>(round_keys.keys[i]) << "\n";
-    std::cout << "\n";
-}
-
-template <aes::Algorithm algorithm>
-void dump_encryption_keys(const typename aes::Types<algorithm>::RoundKeys& round_keys)
-{
-    dump_round_keys<algorithm>("Encryption round keys", round_keys);
-}
-
-template <aes::Algorithm algorithm>
-void dump_decryption_keys(const typename aes::Types<algorithm>::RoundKeys& round_keys)
-{
-    dump_round_keys<algorithm>("Decryption round keys", round_keys);
-}
-
-template <aes::Algorithm algorithm, aes::Mode mode>
-void dump_wrapper(const aes::EncryptWrapper<algorithm, mode>& wrapper)
-{
-    dump_encryption_keys<algorithm>(wrapper.encryption_keys);
-}
-
-template <aes::Algorithm algorithm, aes::Mode mode>
-void dump_wrapper(const aes::DecryptWrapper<algorithm, mode>& wrapper)
-{
-    dump_decryption_keys<algorithm>(wrapper.decryption_keys);
-}
-
-template <aes::Algorithm algorithm, aes::Mode mode,
-          typename std::enable_if<aes::ModeRequiresInitVector<mode>::value>::type* = nullptr>
-void dump_next_iv(const aes::EncryptWrapper<algorithm, mode>& wrapper)
-{
-    dump_block<algorithm>("Next initialization vector", wrapper.iv);
-}
-
-template <aes::Algorithm algorithm, aes::Mode mode,
-          typename std::enable_if<!aes::ModeRequiresInitVector<mode>::value>::type* = nullptr>
-void dump_next_iv(const aes::EncryptWrapper<algorithm, mode>&)
-{ }
-
-template <aes::Algorithm algorithm, aes::Mode mode,
-          typename std::enable_if<aes::ModeRequiresInitVector<mode>::value>::type* = nullptr>
-void dump_next_iv(const aes::DecryptWrapper<algorithm, mode>& wrapper)
-{
-    dump_block<algorithm>("Next initialization vector", wrapper.iv);
-}
-
-template <aes::Algorithm algorithm, aes::Mode mode,
-          typename std::enable_if<!aes::ModeRequiresInitVector<mode>::value>::type* = nullptr>
-void dump_next_iv(const aes::DecryptWrapper<algorithm, mode>&)
-{ }
diff --git a/utils/block_input.hpp b/utils/block_input.hpp
deleted file mode 100644
index f629062..0000000
--- a/utils/block_input.hpp
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com>
-// This file is part of the "AES tools" project.
-// For details, see https://github.com/egor-tensin/aes-tools.
-// Distributed under the MIT License.
-
-#pragma once
-
-#include <string>
-#include <utility>
-#include <vector>
-
-class Input
-{
-public:
-    Input(const std::string& key, const std::string& iv, std::vector<std::string>&& blocks)
-        : key{key}
-        , iv{iv}
-        , blocks{std::move(blocks)}
-    { }
-
-    Input(const std::string& key, std::vector<std::string>&& blocks)
-        : key{key}
-        , blocks{std::move(blocks)}
-    { }
-
-    const std::string key;
-    const std::string iv;
-    const std::vector<std::string> blocks;
-};
diff --git a/utils/bmp/butterfly.bmp b/utils/bmp/butterfly.bmp
deleted file mode 100644
index 105a55a..0000000
--- a/utils/bmp/butterfly.bmp
+++ /dev/null
diff --git a/utils/bmp/cipherfly_cbc.bmp b/utils/bmp/cipherfly_cbc.bmp
deleted file mode 100644
index 664b557..0000000
--- a/utils/bmp/cipherfly_cbc.bmp
+++ /dev/null
diff --git a/utils/bmp/cipherfly_ecb.bmp b/utils/bmp/cipherfly_ecb.bmp
deleted file mode 100644
index 78de9a8..0000000
--- a/utils/bmp/cipherfly_ecb.bmp
+++ /dev/null
diff --git a/utils/data_parsers.hpp b/utils/data_parsers.hpp
deleted file mode 100644
index 1207c7c..0000000
--- a/utils/data_parsers.hpp
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com>
-// This file is part of the "AES tools" project.
-// For details, see https://github.com/egor-tensin/aes-tools.
-// Distributed under the MIT License.
-
-#pragma once
-
-#include <aesxx/all.hpp>
-
-#include <boost/algorithm/string.hpp>
-#include <boost/program_options.hpp>
-
-#include <istream>
-#include <string>
-#include <unordered_map>
-
-inline std::istream& operator>>(std::istream& is, aes::Mode& dest)
-{
-    std::string src;
-    is >> src;
-
-    static const std::unordered_map<std::string, aes::Mode> lookup_table =
-    {
-        {"ecb", AES_ECB},
-        {"cbc", AES_CBC},
-        {"cfb", AES_CFB},
-        {"ofb", AES_OFB},
-        {"ctr", AES_CTR},
-    };
-
-    const auto it = lookup_table.find(boost::algorithm::to_lower_copy(src));
-
-    if (it == lookup_table.cend())
-        throw boost::program_options::invalid_option_value(src);
-
-    dest = it->second;
-    return is;
-}
-
-inline std::istream& operator>>(std::istream& is, aes::Algorithm& dest)
-{
-    std::string src;
-    is >> src;
-
-    static const std::unordered_map<std::string, aes::Algorithm> lookup_table =
-    {
-        {"aes128", AES_AES128},
-        {"aes192", AES_AES192},
-        {"aes256", AES_AES256},
-    };
-
-    const auto it = lookup_table.find(boost::algorithm::to_lower_copy(src));
-
-    if (it == lookup_table.cend())
-        throw boost::program_options::invalid_option_value(src);
-
-    dest = it->second;
-    return is;
-}
diff --git a/utils/decrypt_block.cpp b/utils/decrypt_block.cpp
deleted file mode 100644
index 02a3033..0000000
--- a/utils/decrypt_block.cpp
+++ /dev/null
@@ -1,215 +0,0 @@
-// Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com>
-// This file is part of the "AES tools" project.
-// For details, see https://github.com/egor-tensin/aes-tools.
-// Distributed under the MIT License.
-
-#include "block_cmd_parser.hpp"
-#include "block_dumper.hpp"
-#include "block_input.hpp"
-
-#include <aesxx/all.hpp>
-
-#include <boost/program_options.hpp>
-
-#include <exception>
-#include <iostream>
-#include <stdexcept>
-#include <string>
-
-namespace
-{
-    template <aes::Algorithm algorithm, aes::Mode mode>
-    void decrypt_with_mode(
-        const Input& input,
-        bool verbose = false)
-    {
-        typename aes::Types<algorithm>::Block iv;
-
-        if (aes::ModeRequiresInitVector<mode>())
-        {
-            aes::from_string<algorithm>(iv, input.iv);
-            if (verbose)
-                dump_iv<algorithm>(iv);
-        }
-
-        typename aes::Types<algorithm>::Key key;
-        aes::from_string<algorithm>(key, input.key);
-        if (verbose)
-            dump_key<algorithm>(key);
-
-        aes::DecryptWrapper<algorithm, mode> decrypt{key, iv};
-        if (verbose)
-            dump_wrapper<algorithm, mode>(decrypt);
-
-        for (const auto& block : input.blocks)
-        {
-            typename aes::Types<algorithm>::Block ciphertext, plaintext;
-            aes::from_string<algorithm>(ciphertext, block);
-
-            decrypt.decrypt_block(ciphertext, plaintext);
-
-            if (verbose)
-            {
-                dump_ciphertext<algorithm>(ciphertext);
-                dump_plaintext<algorithm>(plaintext);
-                dump_next_iv<algorithm, mode>(decrypt);
-            }
-            else
-            {
-                std::cout << aes::to_string<algorithm>(plaintext) << '\n';
-            }
-        }
-    }
-
-    template <aes::Algorithm algorithm>
-    void decrypt_with_algorithm(
-        aes::Mode mode,
-        const Input& input,
-        bool verbose = false)
-    {
-        switch (mode)
-        {
-            case AES_ECB:
-                decrypt_with_mode<algorithm, AES_ECB>(input, verbose);
-                break;
-
-            case AES_CBC:
-                decrypt_with_mode<algorithm, AES_CBC>(input, verbose);
-                break;
-
-            case AES_CFB:
-                decrypt_with_mode<algorithm, AES_CFB>(input, verbose);
-                break;
-
-            case AES_OFB:
-                decrypt_with_mode<algorithm, AES_OFB>(input, verbose);
-                break;
-
-            case AES_CTR:
-                decrypt_with_mode<algorithm, AES_CTR>(input, verbose);
-                break;
-
-            default:
-                throw std::runtime_error("the selected mode of operation is not implemented");
-                break;
-        }
-    }
-
-    void decrypt_using_cxx_api(
-        aes::Algorithm algorithm,
-        aes::Mode mode,
-        const Input& input,
-        bool verbose = false)
-    {
-        switch (algorithm)
-        {
-            case AES_AES128:
-                decrypt_with_algorithm<AES_AES128>(mode, input, verbose);
-                break;
-
-            case AES_AES192:
-                decrypt_with_algorithm<AES_AES192>(mode, input, verbose);
-                break;
-
-            case AES_AES256:
-                decrypt_with_algorithm<AES_AES256>(mode, input, verbose);
-                break;
-
-            default:
-                throw std::runtime_error("the selected algorithm is not implemented");
-                break;
-        }
-    }
-
-    void decrypt_using_particular_box(
-        aes::Box& box,
-        const std::vector<std::string>& blocks)
-    {
-        for (const auto& block : blocks)
-        {
-            aes::Box::Block ciphertext;
-            box.parse_block(ciphertext, block);
-
-            aes::Box::Block plaintext;
-            box.decrypt_block(ciphertext, plaintext);
-            std::cout << box.format_block(plaintext) << '\n';
-        }
-    }
-
-    void decrypt_using_boxes(
-        aes::Algorithm algorithm,
-        aes::Mode mode,
-        const Input& input)
-    {
-        aes::Box::Key key;
-        aes::Box::parse_key(key, algorithm, input.key);
-
-        if (aes::mode_requires_init_vector(mode))
-        {
-            aes::Box::Block iv;
-            aes::Box::parse_block(iv, algorithm, input.iv);
-            aes::Box box{algorithm, key, mode, iv};
-
-            decrypt_using_particular_box(box, input.blocks);
-        }
-        else
-        {
-            aes::Box box{algorithm, key};
-            decrypt_using_particular_box(box, input.blocks);
-        }
-    }
-}
-
-int main(int argc, char** argv)
-{
-    try
-    {
-        BlockSettings settings{argv[0]};
-
-        try
-        {
-            settings.parse(argc, argv);
-        }
-        catch (const boost::program_options::error& e)
-        {
-            settings.usage_error(e);
-            return 1;
-        }
-
-        if (settings.exit_with_usage)
-        {
-            settings.usage();
-            return 0;
-        }
-
-        for (const auto& input : settings.inputs)
-        {
-            if (settings.use_boxes)
-            {
-                decrypt_using_boxes(
-                    settings.algorithm,
-                    settings.mode,
-                    input);
-            }
-            else
-            {
-                decrypt_using_cxx_api(
-                    settings.algorithm,
-                    settings.mode,
-                    input,
-                    settings.verbose);
-            }
-        }
-    }
-    catch (const aes::Error& e)
-    {
-        std::cerr << e;
-        return 1;
-    }
-    catch (const std::exception& e)
-    {
-        std::cerr << e.what() << "\n";
-        return 1;
-    }
-    return 0;
-}
diff --git a/utils/decrypt_bmp.cpp b/utils/decrypt_bmp.cpp
deleted file mode 100644
index 9f9cd52..0000000
--- a/utils/decrypt_bmp.cpp
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com>
-// This file is part of the "AES tools" project.
-// For details, see https://github.com/egor-tensin/aes-tools.
-// Distributed under the MIT License.
-
-#include "file_cmd_parser.hpp"
-#include "helpers/bmp.hpp"
-#include "helpers/file.hpp"
-
-#include <aesxx/all.hpp>
-
-#include <windows.h>
-
-#include <boost/program_options.hpp>
-
-#include <exception>
-#include <iostream>
-#include <string>
-
-namespace
-{
-    void decrypt_bmp(
-        aes::Box& box,
-        const std::string& ciphertext_path,
-        const std::string& plaintext_path)
-    {
-        bmp::BmpFile bmp{file::read_file(ciphertext_path)};
-        bmp.replace_pixels(box.decrypt_buffer(
-            bmp.get_pixels(),
-            bmp.get_pixels_size()));
-        file::write_file(plaintext_path, bmp.get_buffer(), bmp.get_size());
-    }
-
-    void decrypt_bmp(const FileSettings& settings)
-    {
-        const auto& algorithm = settings.algorithm;
-        const auto& mode = settings.mode;
-
-        aes::Box::Key key;
-        aes::Box::parse_key(key, algorithm, settings.key);
-
-        if (aes::mode_requires_init_vector(mode))
-        {
-            aes::Box::Block iv;
-            aes::Box::parse_block(iv, algorithm, settings.iv);
-
-            aes::Box box{algorithm, key, mode, iv};
-            decrypt_bmp(box, settings.input_path, settings.output_path);
-        }
-        else
-        {
-            aes::Box box{algorithm, key};
-            decrypt_bmp(box, settings.input_path, settings.output_path);
-        }
-    }
-}
-
-int main(int argc, char** argv)
-{
-    try
-    {
-        FileSettings settings{argv[0]};
-
-        try
-        {
-            settings.parse(argc, argv);
-        }
-        catch (const boost::program_options::error& e)
-        {
-            settings.usage_error(e);
-            return 1;
-        }
-
-        if (settings.exit_with_usage)
-        {
-            settings.usage();
-            return 0;
-        }
-
-        decrypt_bmp(settings);
-    }
-    catch (const aes::Error& e)
-    {
-        std::cerr << e;
-        return 1;
-    }
-    catch (const std::exception& e)
-    {
-        std::cerr << e.what() << "\n";
-        return 1;
-    }
-    return 0;
-}
diff --git a/utils/decrypt_file.cpp b/utils/decrypt_file.cpp
deleted file mode 100644
index 6da3d17..0000000
--- a/utils/decrypt_file.cpp
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com>
-// This file is part of the "AES tools" project.
-// For details, see https://github.com/egor-tensin/aes-tools.
-// Distributed under the MIT License.
-
-#include "file_cmd_parser.hpp"
-#include "helpers/file.hpp"
-
-#include <aesxx/all.hpp>
-
-#include <boost/program_options.hpp>
-
-#include <exception>
-#include <iostream>
-#include <string>
-#include <vector>
-
-namespace
-{
-    void decrypt_file(
-        aes::Box& box,
-        const std::string& ciphertext_path,
-        const std::string& plaintext_path)
-    {
-        const auto ciphertext_buf = file::read_file(ciphertext_path);
-        const auto plaintext_buf = box.decrypt_buffer(
-            ciphertext_buf.data(),
-            ciphertext_buf.size());
-        file::write_file(plaintext_path, plaintext_buf);
-    }
-
-    void decrypt_file(const FileSettings& settings)
-    {
-        const auto& algorithm = settings.algorithm;
-        const auto& mode = settings.mode;
-
-        aes::Box::Key key;
-        aes::Box::parse_key(key, algorithm, settings.key);
-
-        if (aes::mode_requires_init_vector(mode))
-        {
-            aes::Box::Block iv;
-            aes::Box::parse_block(iv, algorithm, settings.iv);
-
-            aes::Box box{algorithm, key, mode, iv};
-            decrypt_file(box, settings.input_path, settings.output_path);
-        }
-        else
-        {
-            aes::Box box{algorithm, key};
-            decrypt_file(box, settings.input_path, settings.output_path);
-        }
-    }
-}
-
-int main(int argc, char** argv)
-{
-    try
-    {
-        FileSettings settings{argv[0]};
-
-        try
-        {
-            settings.parse(argc, argv);
-        }
-        catch (const boost::program_options::error& e)
-        {
-            settings.usage_error(e);
-            return 1;
-        }
-
-        if (settings.exit_with_usage)
-        {
-            settings.usage();
-            return 0;
-        }
-
-        decrypt_file(settings);
-    }
-    catch (const aes::Error& e)
-    {
-        std::cerr << e;
-        return 1;
-    }
-    catch (const std::exception& e)
-    {
-        std::cerr << e.what() << "\n";
-        return 1;
-    }
-    return 0;
-}
diff --git a/utils/encrypt_block.cpp b/utils/encrypt_block.cpp
deleted file mode 100644
index 0b87364..0000000
--- a/utils/encrypt_block.cpp
+++ /dev/null
@@ -1,215 +0,0 @@
-// Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com>
-// This file is part of the "AES tools" project.
-// For details, see https://github.com/egor-tensin/aes-tools.
-// Distributed under the MIT License.
-
-#include "block_cmd_parser.hpp"
-#include "block_dumper.hpp"
-#include "block_input.hpp"
-
-#include <aesxx/all.hpp>
-
-#include <boost/program_options.hpp>
-
-#include <exception>
-#include <iostream>
-#include <stdexcept>
-#include <string>
-
-namespace
-{
-    template <aes::Algorithm algorithm, aes::Mode mode>
-    void encrypt_with_mode(
-        const Input& input,
-        bool verbose = false)
-    {
-        typename aes::Types<algorithm>::Block iv;
-
-        if (aes::ModeRequiresInitVector<mode>::value)
-        {
-            aes::from_string<algorithm>(iv, input.iv);
-            if (verbose)
-                dump_iv<algorithm>(iv);
-        }
-
-        typename aes::Types<algorithm>::Key key;
-        aes::from_string<algorithm>(key, input.key);
-        if (verbose)
-            dump_key<algorithm>(key);
-
-        aes::EncryptWrapper<algorithm, mode> encrypt{key, iv};
-        if (verbose)
-            dump_wrapper<algorithm, mode>(encrypt);
-
-        for (const auto& input_block_string : input.blocks)
-        {
-            typename aes::Types<algorithm>::Block plaintext, ciphertext;
-            aes::from_string<algorithm>(plaintext, input_block_string);
-
-            encrypt.encrypt_block(plaintext, ciphertext);
-
-            if (verbose)
-            {
-                dump_plaintext<algorithm>(plaintext);
-                dump_ciphertext<algorithm>(ciphertext);
-                dump_next_iv<algorithm, mode>(encrypt);
-            }
-            else
-            {
-                std::cout << aes::to_string<algorithm>(ciphertext) << '\n';
-            }
-        }
-    }
-
-    template <aes::Algorithm algorithm>
-    void encrypt_with_algorithm(
-        aes::Mode mode,
-        const Input& input,
-        bool verbose = false)
-    {
-        switch (mode)
-        {
-            case AES_ECB:
-                encrypt_with_mode<algorithm, AES_ECB>(input, verbose);
-                break;
-
-            case AES_CBC:
-                encrypt_with_mode<algorithm, AES_CBC>(input, verbose);
-                break;
-
-            case AES_CFB:
-                encrypt_with_mode<algorithm, AES_CFB>(input, verbose);
-                break;
-
-            case AES_OFB:
-                encrypt_with_mode<algorithm, AES_OFB>(input, verbose);
-                break;
-
-            case AES_CTR:
-                encrypt_with_mode<algorithm, AES_CTR>(input, verbose);
-                break;
-
-            default:
-                throw std::runtime_error("the selected mode of operation is not implemented");
-                break;
-        }
-    }
-
-    void encrypt_using_cxx_api(
-        aes::Algorithm algorithm,
-        aes::Mode mode,
-        const Input& input,
-        bool verbose = false)
-    {
-        switch (algorithm)
-        {
-            case AES_AES128:
-                encrypt_with_algorithm<AES_AES128>(mode, input, verbose);
-                break;
-
-            case AES_AES192:
-                encrypt_with_algorithm<AES_AES192>(mode, input, verbose);
-                break;
-
-            case AES_AES256:
-                encrypt_with_algorithm<AES_AES256>(mode, input, verbose);
-                break;
-
-            default:
-                throw std::runtime_error("the selected algorithm is not implemented");
-                break;
-        }
-    }
-
-    void encrypt_using_particular_box(
-        aes::Box& box,
-        const std::vector<std::string>& input_block_strings)
-    {
-        for (const auto& input_block_string : input_block_strings)
-        {
-            aes::Box::Block plaintext;
-            box.parse_block(plaintext, input_block_string);
-
-            aes::Box::Block ciphertext;
-            box.encrypt_block(plaintext, ciphertext);
-            std::cout << box.format_block(ciphertext) << '\n';
-        }
-    }
-
-    void encrypt_using_boxes(
-        aes::Algorithm algorithm,
-        aes::Mode mode,
-        const Input& input)
-    {
-        aes::Box::Key key;
-        aes::Box::parse_key(key, algorithm, input.key);
-
-        if (aes::mode_requires_init_vector(mode))
-        {
-            aes::Box::Block iv;
-            aes::Box::parse_block(iv, algorithm, input.iv);
-            aes::Box box{algorithm, key, mode, iv};
-
-            encrypt_using_particular_box(box, input.blocks);
-        }
-        else
-        {
-            aes::Box box{algorithm, key};
-            encrypt_using_particular_box(box, input.blocks);
-        }
-    }
-}
-
-int main(int argc, char** argv)
-{
-    try
-    {
-        BlockSettings settings{argv[0]};
-
-        try
-        {
-            settings.parse(argc, argv);
-        }
-        catch (const boost::program_options::error& e)
-        {
-            settings.usage_error(e);
-            return 1;
-        }
-
-        if (settings.exit_with_usage)
-        {
-            settings.usage();
-            return 0;
-        }
-
-        for (const auto& input : settings.inputs)
-        {
-            if (settings.use_boxes)
-            {
-                encrypt_using_boxes(
-                    settings.algorithm,
-                    settings.mode,
-                    input);
-            }
-            else
-            {
-                encrypt_using_cxx_api(
-                    settings.algorithm,
-                    settings.mode,
-                    input,
-                    settings.verbose);
-            }
-        }
-    }
-    catch (const aes::Error& e)
-    {
-        std::cerr << e;
-        return 1;
-    }
-    catch (const std::exception& e)
-    {
-        std::cerr << e.what() << "\n";
-        return 1;
-    }
-    return 0;
-}
diff --git a/utils/encrypt_bmp.cpp b/utils/encrypt_bmp.cpp
deleted file mode 100644
index 7f1a890..0000000
--- a/utils/encrypt_bmp.cpp
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com>
-// This file is part of the "AES tools" project.
-// For details, see https://github.com/egor-tensin/aes-tools.
-// Distributed under the MIT License.
-
-#include "file_cmd_parser.hpp"
-#include "helpers/bmp.hpp"
-#include "helpers/file.hpp"
-
-#include <aesxx/all.hpp>
-
-#include <boost/program_options.hpp>
-
-#include <exception>
-#include <iostream>
-#include <string>
-
-namespace
-{
-    void encrypt_bmp(
-        aes::Box& box,
-        const std::string& plaintext_path,
-        const std::string& ciphertext_path)
-    {
-        bmp::BmpFile bmp{file::read_file(plaintext_path)};
-        bmp.replace_pixels(box.encrypt_buffer(
-            bmp.get_pixels(),
-            bmp.get_pixels_size()));
-        file::write_file(ciphertext_path, bmp.get_buffer(), bmp.get_size());
-    }
-
-    void encrypt_bmp(const FileSettings& settings)
-    {
-        const auto& algorithm = settings.algorithm;
-        const auto& mode = settings.mode;
-
-        aes::Box::Key key;
-        aes::Box::parse_key(key, algorithm, settings.key);
-
-        if (aes::mode_requires_init_vector(mode))
-        {
-            aes::Box::Block iv;
-            aes::Box::parse_block(iv, algorithm, settings.iv);
-
-            aes::Box box{algorithm, key, mode, iv};
-            encrypt_bmp(box, settings.input_path, settings.output_path);
-        }
-        else
-        {
-            aes::Box box{algorithm, key};
-            encrypt_bmp(box, settings.input_path, settings.output_path);
-        }
-    }
-}
-
-int main(int argc, char** argv)
-{
-    try
-    {
-        FileSettings settings{argv[0]};
-
-        try
-        {
-            settings.parse(argc, argv);
-        }
-        catch (const boost::program_options::error& e)
-        {
-            settings.usage_error(e);
-            return 1;
-        }
-
-        if (settings.exit_with_usage)
-        {
-            settings.usage();
-            return 0;
-        }
-
-        encrypt_bmp(settings);
-    }
-    catch (const aes::Error& e)
-    {
-        std::cerr << e;
-        return 1;
-    }
-    catch (const std::exception& e)
-    {
-        std::cerr << e.what() << "\n";
-        return 1;
-    }
-    return 0;
-}
diff --git a/utils/encrypt_file.cpp b/utils/encrypt_file.cpp
deleted file mode 100644
index 570bc60..0000000
--- a/utils/encrypt_file.cpp
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com>
-// This file is part of the "AES tools" project.
-// For details, see https://github.com/egor-tensin/aes-tools.
-// Distributed under the MIT License.
-
-#include "file_cmd_parser.hpp"
-#include "helpers/file.hpp"
-
-#include <aesxx/all.hpp>
-
-#include <boost/program_options.hpp>
-
-#include <exception>
-#include <iostream>
-#include <string>
-#include <vector>
-
-namespace
-{
-    void encrypt_file(
-        aes::Box& box,
-        const std::string& plaintext_path,
-        const std::string& ciphertext_path)
-    {
-        const auto plaintext_buf = file::read_file(plaintext_path);
-        const auto ciphertext_buf = box.encrypt_buffer(
-            plaintext_buf.data(),
-            plaintext_buf.size());
-        file::write_file(ciphertext_path, ciphertext_buf);
-    }
-
-    void encrypt_file(const FileSettings& settings)
-    {
-        const auto& algorithm = settings.algorithm;
-        const auto& mode = settings.mode;
-
-        aes::Box::Key key;
-        aes::Box::parse_key(key, algorithm, settings.key);
-
-        if (aes::mode_requires_init_vector(mode))
-        {
-            aes::Box::Block iv;
-            aes::Box::parse_block(iv, algorithm, settings.iv);
-
-            aes::Box box{algorithm, key, mode, iv};
-            encrypt_file(box, settings.input_path, settings.output_path);
-        }
-        else
-        {
-            aes::Box box{algorithm, key};
-            encrypt_file(box, settings.input_path, settings.output_path);
-        }
-    }
-}
-
-int main(int argc, char** argv)
-{
-    try
-    {
-        FileSettings settings{argv[0]};
-
-        try
-        {
-            settings.parse(argc, argv);
-        }
-        catch (const boost::program_options::error& e)
-        {
-            settings.usage_error(e);
-            return 1;
-        }
-
-        if (settings.exit_with_usage)
-        {
-            settings.usage();
-            return 0;
-        }
-
-        encrypt_file(settings);
-    }
-    catch (const aes::Error& e)
-    {
-        std::cerr << e;
-        return 1;
-    }
-    catch (const std::exception& e)
-    {
-        std::cerr << e.what() << "\n";
-        return 1;
-    }
-    return 0;
-}
diff --git a/utils/file_cmd_parser.hpp b/utils/file_cmd_parser.hpp
deleted file mode 100644
index e199409..0000000
--- a/utils/file_cmd_parser.hpp
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com>
-// This file is part of the "AES tools" project.
-// For details, see https://github.com/egor-tensin/aes-tools.
-// Distributed under the MIT License.
-
-#pragma once
-
-#include "data_parsers.hpp"
-#include "helpers/command_line.hpp"
-
-#include <aesxx/all.hpp>
-
-#include <boost/filesystem.hpp>
-#include <boost/program_options.hpp>
-
-#include <ostream>
-#include <string>
-#include <utility>
-
-class FileSettings : public command_line::SettingsParser
-{
-public:
-    aes::Algorithm algorithm = AES_AES128;
-    aes::Mode mode = AES_ECB;
-
-    std::string input_path;
-    std::string output_path;
-    std::string key;
-    std::string iv;
-
-    explicit FileSettings(const std::string& argv0)
-        : SettingsParser{argv0}
-    {
-        visible.add_options()
-            ("algorithm,a",
-                boost::program_options::value<aes::Algorithm>(&algorithm)
-                    ->required()
-                    ->value_name("NAME"),
-                "set algorithm")
-            ("mode,m",
-                boost::program_options::value<aes::Mode>(&mode)
-                    ->required()
-                    ->value_name("MODE"),
-                "set mode of operation")
-            ("key,k",
-                boost::program_options::value<std::string>(&key)
-                    ->required()
-                    ->value_name("KEY"),
-                "set encryption key")
-            ("iv,v",
-                boost::program_options::value<std::string>(&iv)
-                    ->value_name("BLOCK"),
-                "set initialization vector")
-            ("input,i",
-                boost::program_options::value<std::string>(&input_path)
-                    ->required()
-                    ->value_name("PATH"),
-                "set input file path")
-            ("output,o",
-                boost::program_options::value<std::string>(&output_path)
-                    ->required()
-                    ->value_name("PATH"),
-                "set output file path");
-    }
-
-    const char* get_short_description() const override
-    {
-        return "[-h|--help] [-a|--algorithm NAME] [-m|--mode MODE]"
-               " [-k|--key KEY] [-v|--iv BLOCK]"
-               " [-i|--input PATH] [-o|--output PATH]";
-    }
-
-    void parse(int argc, char** argv) override
-    {
-        SettingsParser::parse(argc, argv);
-
-        if (aes::mode_requires_init_vector(mode) && iv.empty())
-        {
-            throw boost::program_options::error{
-                "an initialization vector is required for the selected mode of operation"};
-        }
-    }
-};
diff --git a/utils/helpers/bmp.hpp b/utils/helpers/bmp.hpp
deleted file mode 100644
index b4b283b..0000000
--- a/utils/helpers/bmp.hpp
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2016 Egor Tensin <Egor.Tensin@gmail.com>
-// This file is part of the "AES tools" project.
-// For details, see https://github.com/egor-tensin/aes-tools.
-// Distributed under the MIT License.
-
-#include <windows.h>
-
-#include <cstddef>
-#include <cstring>
-
-#include <string>
-#include <utility>
-#include <vector>
-
-namespace bmp
-{
-    class BmpFile
-    {
-    public:
-        BmpFile(std::vector<char>&& buffer)
-            : buffer{std::move(buffer)}
-            , header_size{extract_pixels_offset()}
-        { }
-
-        const void* get_buffer() const { return buffer.data(); }
-
-        std::size_t get_size() const { return buffer.size(); }
-
-        std::size_t get_header_size() const { return header_size; }
-
-        const void* get_pixels() const
-        {
-            return buffer.data() + get_header_size();
-        }
-
-        std::size_t get_pixels_size() const
-        {
-            return get_size() - get_header_size();
-        }
-
-        void replace_pixels(std::vector<unsigned char>&& pixels)
-        {
-            buffer.resize(get_header_size() + pixels.size());
-            std::memcpy(buffer.data() + get_header_size(), pixels.data(), pixels.size());
-        }
-
-    private:
-        std::size_t extract_pixels_offset() const
-        {
-            const auto header = reinterpret_cast<const BITMAPFILEHEADER*>(get_buffer());
-            return header->bfOffBits;
-        }
-
-        std::vector<char> buffer;
-        std::size_t header_size;
-    };
-}
diff --git a/utils/helpers/command_line.hpp b/utils/helpers/command_line.hpp
deleted file mode 100644
index 2e4d803..0000000
--- a/utils/helpers/command_line.hpp
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright (c) 2017 Egor Tensin <Egor.Tensin@gmail.com>
-// This file is part of the "AES tools" project.
-// For details, see https://github.com/egor-tensin/aes-tools.
-// Distributed under the MIT License.
-
-#pragma once
-
-#include <boost/filesystem.hpp>
-#include <boost/program_options.hpp>
-
-#include <exception>
-#include <iostream>
-#include <ostream>
-#include <string>
-
-namespace command_line
-{
-    class SettingsParser
-    {
-    public:
-        explicit SettingsParser(const std::string& argv0)
-            : prog_name{extract_filename(argv0)}
-        {
-            visible.add_options()
-                ("help,h",
-                    "show this message and exit");
-        }
-
-        virtual ~SettingsParser() = default;
-
-        virtual const char* get_short_description() const
-        {
-            return "[--option VALUE]...";
-        }
-
-        virtual void parse(int argc, char* argv[])
-        {
-            boost::program_options::options_description all;
-            all.add(hidden).add(visible);
-            boost::program_options::variables_map vm;
-            boost::program_options::store(
-                boost::program_options::command_line_parser{argc, argv}
-                    .options(all)
-                    .positional(positional)
-                    .run(),
-                vm);
-            if (vm.count("help"))
-                exit_with_usage = true;
-            else
-                boost::program_options::notify(vm);
-        }
-
-        bool exit_with_usage = false;
-
-        void usage() const
-        {
-            std::cout << *this;
-        }
-
-        void usage_error(const std::exception& e) const
-        {
-            std::cerr << "usage error: " << e.what() << '\n';
-            std::cerr << *this;
-        }
-
-    protected:
-        boost::program_options::options_description hidden;
-        boost::program_options::options_description visible;
-        boost::program_options::positional_options_description positional;
-
-    private:
-        static std::string extract_filename(const std::string& path)
-        {
-            return boost::filesystem::path{path}.filename().string();
-        }
-
-        const std::string prog_name;
-
-        friend std::ostream& operator<<(std::ostream& os, const SettingsParser& parser)
-        {
-            const auto short_descr = parser.get_short_description();
-            os << "usage: " << parser.prog_name << ' ' << short_descr << '\n';
-            os << parser.visible;
-            return os;
-        }
-    };
-}
diff --git a/utils/helpers/file.hpp b/utils/helpers/file.hpp
deleted file mode 100644
index 48e4c51..0000000
--- a/utils/helpers/file.hpp
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) 2016 Egor Tensin <Egor.Tensin@gmail.com>
-// This file is part of the "AES tools" project.
-// For details, see https://github.com/egor-tensin/aes-tools.
-// Distributed under the MIT License.
-
-#include <cstddef>
-
-#include <fstream>
-#include <iterator>
-#include <limits>
-#include <stdexcept>
-#include <string>
-#include <type_traits>
-#include <vector>
-
-namespace file
-{
-    inline std::size_t cast_to_size_t(std::streamoff size)
-    {
-        if (size < 0)
-            throw std::range_error{"file::cast_to_size_t: something went really wrong"};
-        typedef std::make_unsigned<std::streamoff>::type unsigned_streamoff;
-        if (static_cast<unsigned_streamoff>(size) > std::numeric_limits<std::size_t>::max())
-            throw std::range_error{"file::cast_to_size_t: this file is too large"};
-        return static_cast<std::size_t>(size);
-    }
-
-    inline std::size_t get_file_size(const std::string& path)
-    {
-        std::ifstream ifs;
-        ifs.exceptions(std::ifstream::badbit | std::ifstream::failbit);
-        ifs.open(path, std::ifstream::binary | std::ifstream::ate);
-        return cast_to_size_t(ifs.tellg());
-    }
-
-    inline std::vector<char> read_file(const std::string& path)
-    {
-        const auto size = get_file_size(path);
-
-        std::ifstream ifs;
-        ifs.exceptions(std::ifstream::badbit | std::ifstream::failbit);
-        ifs.open(path, std::ifstream::binary);
-
-        std::vector<char> src_buf;
-        src_buf.reserve(size);
-        src_buf.assign(
-            std::istreambuf_iterator<char>{ifs},
-            std::istreambuf_iterator<char>{});
-        return src_buf;
-    }
-
-    inline void write_file(
-        const std::string& path,
-        const void* buffer,
-        const std::size_t size)
-    {
-        std::ofstream ofs;
-        ofs.exceptions(std::ofstream::badbit | std::ofstream::failbit);
-        ofs.open(path, std::ofstream::binary);
-        ofs.write(reinterpret_cast<const char*>(buffer), size);
-    }
-
-    inline void write_file(
-        const std::string& path,
-        const std::vector<unsigned char>& src)
-    {
-        write_file(path, src.data(), src.size());
-    }
-}