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/**
* \file
* \author Egor Tensin <Egor.Tensin@gmail.com>
* \date 2015
* \copyright This file is licensed under the terms of the MIT License.
* See LICENSE.txt for details.
*/
#pragma once
#include <aesnixx/all.hpp>
#include <boost/algorithm/string.hpp>
#include <boost/program_options.hpp>
#include <cstdlib>
#include <deque>
#include <iostream>
#include <iterator>
#include <istream>
#include <string>
#include <vector>
static std::istream& operator>>(std::istream& is, aesni::Mode& dest)
{
std::string src;
is >> src;
if (boost::iequals(src, "ecb"))
dest = AESNI_ECB;
else if (boost::iequals(src, "cbc"))
dest = AESNI_CBC;
else if (boost::iequals(src, "cfb"))
dest = AESNI_CFB;
else if (boost::iequals(src, "ofb"))
dest = AESNI_OFB;
else if (boost::iequals(src, "ctr"))
dest = AESNI_CTR;
else
throw boost::program_options::validation_error(boost::program_options::validation_error::invalid_option_value, "mode", src);
return is;
}
static std::istream& operator>>(std::istream& is, aesni::Algorithm& dest)
{
std::string src;
is >> src;
if (boost::iequals(src, "aes128"))
dest = AESNI_AES128;
else if (boost::iequals(src, "aes192"))
dest = AESNI_AES192;
else if (boost::iequals(src, "aes256"))
dest = AESNI_AES256;
else
throw boost::program_options::validation_error(boost::program_options::validation_error::invalid_option_value, "algorithm", src);
return is;
}
namespace
{
class CommandLineParser
{
public:
CommandLineParser(const std::string& prog_name)
: prog_name(prog_name)
, options("Options")
, boxes_flag(false)
, verbose_flag(false)
{ }
bool parse_options(int argc, char** argv)
{
namespace po = boost::program_options;
options.add_options()
("help,h", "show this message and exit")
("box,b", po::bool_switch(&boxes_flag)->default_value(false), "use the \"boxes\" interface")
("mode,m", po::value<aesni::Mode>(&encryption_mode)->required(), "set mode of operation")
("algorithm,a", po::value<aesni::Algorithm>(&encryption_algo)->required(), "set algorithm")
("verbose,v", po::bool_switch(&verbose_flag)->default_value(false), "enable verbose output");
po::options_description hidden_options;
hidden_options.add_options()
("positional", po::value<std::vector<std::string>>(&args));
po::options_description all_options;
all_options.add(options).add(hidden_options);
po::positional_options_description positional_options;
positional_options.add("positional", -1);
po::variables_map vm;
po::store(po::command_line_parser(argc, argv).options(all_options).positional(positional_options).run(), vm);
if (vm.count("help"))
{
print_usage();
return false;
}
po::notify(vm);
return true;
}
void print_usage()
{
std::cout << "Usage: " << prog_name << " [OPTIONS...] [-- KEY [IV] [BLOCK...]...]\n";
std::cout << options << "\n";
}
aesni::Mode get_mode() const
{
return encryption_mode;
}
aesni::Algorithm get_algorithm() const
{
return encryption_algo;
}
bool use_boxes() const
{
return boxes_flag;
}
std::deque<std::string> get_args()
{
return { std::make_move_iterator(args.begin()), std::make_move_iterator(args.end()) };
}
bool verbose() const
{
return verbose_flag;
}
private:
const std::string prog_name;
boost::program_options::options_description options;
aesni::Mode encryption_mode;
aesni::Algorithm encryption_algo;
bool boxes_flag;
std::vector<std::string> args;
bool verbose_flag;
};
}
namespace
{
template <aesni::Algorithm algorithm>
void dump_block(const char* name, const typename aesni::Types<algorithm>::Block& block)
{
std::cout << name << ": " << aesni::to_string<algorithm>(block) << "\n" << aesni::to_matrix_string<algorithm>(block) << "\n";
}
template <aesni::Algorithm algorithm>
void dump_plaintext(const typename aesni::Types<algorithm>::Block& block)
{
dump_block<algorithm>("Plaintext", block);
}
template <aesni::Algorithm algorithm>
void dump_key(const typename aesni::Types<algorithm>::Key& key)
{
std::cout << "Key: " << aesni::to_string<algorithm>(key) << "\n\n";
}
template <aesni::Algorithm algorithm>
void dump_ciphertext(const typename aesni::Types<algorithm>::Block& ciphertext)
{
dump_block<algorithm>("Ciphertext", ciphertext);
}
template <aesni::Algorithm algorithm>
void dump_iv(const typename aesni::Types<algorithm>::Block& iv)
{
dump_block<algorithm>("Initialization vector", iv);
}
template <aesni::Algorithm algorithm>
void dump_round_keys(const char* name, const typename aesni::Types<algorithm>::RoundKeys& round_keys)
{
std::cout << name << ":\n";
for (std::size_t i = 0; i < aesni::get_number_of_rounds<algorithm>(); ++i)
std::cout << "\t[" << i << "]: " << aesni::to_string<algorithm>(round_keys.keys[i]) << "\n";
std::cout << "\n";
}
template <aesni::Algorithm algorithm>
void dump_encryption_keys(const typename aesni::Types<algorithm>::RoundKeys& round_keys)
{
dump_round_keys<algorithm>("Encryption round keys", round_keys);
}
template <aesni::Algorithm algorithm>
void dump_decryption_keys(const typename aesni::Types<algorithm>::RoundKeys& round_keys)
{
dump_round_keys<algorithm>("Decryption round keys", round_keys);
}
template <aesni::Algorithm algorithm, aesni::Mode mode>
void dump_wrapper(
const aesni::EncryptWrapper<algorithm, mode>& wrapper)
{
dump_encryption_keys<algorithm>(wrapper.encryption_keys);
}
template <aesni::Algorithm algorithm, aesni::Mode mode>
void dump_wrapper(
const aesni::DecryptWrapper<algorithm, mode>& wrapper)
{
dump_decryption_keys<algorithm>(wrapper.decryption_keys);
}
template <aesni::Algorithm algorithm, aesni::Mode mode, typename std::enable_if<aesni::ModeRequiresInitializationVector<mode>::value>::type* = 0>
void dump_next_iv(
const aesni::EncryptWrapper<algorithm, mode>& wrapper)
{
dump_block<algorithm>("Next initialization vector", wrapper.iv);
}
template <aesni::Algorithm algorithm, aesni::Mode mode, typename std::enable_if<!aesni::ModeRequiresInitializationVector<mode>::value>::type* = 0>
void dump_next_iv(
const aesni::EncryptWrapper<algorithm, mode>&)
{ }
template <aesni::Algorithm algorithm, aesni::Mode mode, typename std::enable_if<aesni::ModeRequiresInitializationVector<mode>::value>::type* = 0>
void dump_next_iv(
const aesni::DecryptWrapper<algorithm, mode>& wrapper)
{
dump_block<algorithm>("Next initialization vector", wrapper.iv);
}
template <aesni::Algorithm algorithm, aesni::Mode mode, typename std::enable_if<!aesni::ModeRequiresInitializationVector<mode>::value>::type* = 0>
void dump_next_iv(
const aesni::DecryptWrapper<algorithm, mode>&)
{ }
}
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