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lighter_mitm.hpp
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lighter_mitm.hpp
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/**
* PEIGEN: a Platform for Evaluation, Implementation, and Generation of S-boxes
*
* Copyright 2019 by
* Zhenzhen Bao <baozhenzhen10[at]gmail.com>
* Jian Guo <guojian[at]ntu.edu.sg>
* San Ling <lingsan[at]ntu.edu.sg>
* Yu Sasaki <yu[dot]sasaki[dot][email protected]>
*
* This platform is developed based on the open source application
* <http://jeremy.jean.free.fr/pub/fse2018_layer_implementations.tar.gz>
* Optimizing Implementations of Lightweight Building Blocks
*
* Copyright 2017 by
* Jade Tourteaux <Jade[dot]Tourteaux[at]gmail.com>
* Jérémy Jean <Jean[dot]Jeremy[at]gmail.com>
*
* We follow the same copyright policy.
*
* This file is part of some open source application.
*
* Some open source application is free software: you can redistribute
* it and/or modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation, either
* version 3 of the License, or (at your option) any later version.
*
* Some open source application is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Foobar. If not, see <http://www.gnu.org/licenses/>.
*
* @license GPL-3.0+ <http://spdx.org/licenses/GPL-3.0+>
*/
#ifndef LIGHTER_MITM_H__
#define LIGHTER_MITM_H__
using namespace Peigen;
using namespace Peigen::weight;
using namespace std;
#define MAX_VEC_NODES (max_nodes>>1UL)
#define pre_parse_args() \
int myargc = 0; \
char* myargv[50]; \
string args_tmp = "x " + args; \
char * args_str = new char [args_tmp.length() + 1]; \
strcpy(args_str, args_tmp.c_str()); \
char * p = strtok(args_str," "); \
while( p != 0) \
{ \
myargv[myargc] = p; \
p = strtok(NULL, " "); \
myargc++; \
} \
myargv[myargc] = NULL; \
int opt; \
optind = 0;
#define post_parse_args() \
delete [] args_str; \
max_nodes = max_ram * 100000000UL / sizeof(function_t<N>); \
if (gate_maoi1 == 1) gate_xor2 = 0; \
if (gate_moai1 == 1) gate_xnor2 = 0;
template<int N>
void lighter<N>::pre_compute(string args)
{
clock_t t1 = clock();
pre_parse_args();
while ((opt = getopt_long(myargc, myargv, "c:z:vap:f:r:", longopts, NULL)) != EOF)
{
switch(opt)
{
case 'a': all_gates(); break;
case 'v': verbose = true; break;
case 'c': pre_l = abs(atoi(optarg))*100; cout << "Precompute Limit : "<< optarg << endl; break;
case 'z': cntpoint = abs(atoi(optarg))*100; cout << "Continue from breakpoint : "<< optarg << endl; break;
case 'p': omp_nb_threads = (atoi(optarg)); cout << "Thread number : "<< omp_nb_threads<<endl;break;
case 'f': conf_file = optarg; break;
case 'r': max_ram = atol(optarg); break;
case '?': fprintf(stderr, "wrong cmd line");
}
}
post_parse_args();
genImpInfo();
init_b(conf_file);
pre_computing();
reset();
t1 = clock() - t1;
cout << "Pre-computation takes time (mins): " << (((double)t1) / (CLOCKS_PER_SEC * 60.0)) << endl;
}
template<int N>
void lighter<N>::pre_computing()
{
function_t<N> f1 = function_t<N>::INPUT_DEFAULT();
f1.sort(); f1.bit_slice_to_LUT();
f1_succ.clear();
f2_succ.clear();
if (cntpoint != -1)
{
read_pre_bin(cntpoint);
count_list = cntpoint;
while (count_list <= pre_l)
{
expand(&f1_succ, &f2_succ, count_list);
if (verbose) cout << count_list << endl;
write_pre_bin(count_list+min_GE);
count_list++;
}
}
else
{
f1_succ.insert(pair<int, set<function_t<N> > >(0, {f1}));
write_pre_bin(0);
count_list = 0;
while (count_list <= pre_l)
{
expand(&f1_succ, &f2_succ, count_list);
if (verbose) cout << count_list << endl;
write_pre_bin(count_list+min_GE);
count_list++;
}
}
}
template<int N>
void lighter<N>::write_pre_bin(int lambda)
{
ofstream fout;
size_t function_s = sizeof(function_t<N>);
auto map_it = f1_succ.find(lambda);
while (map_it != f1_succ.end())
{
string pre_filen = "pre_" + imp_info + "_" + to_string(map_it->first) + ".bin";
fout.open(pre_filen, ios::binary);
for (auto set_it = map_it->second.begin(); set_it != map_it->second.end(); set_it++)
{
fout.write((char *)&(*set_it), function_s);
}
fout.close();
map_it++;
}
}
template<int N>
void lighter<N>::read_pre_bin(int completed)
{
ifstream fin;
function_t<N> f_t;
int lambda = 0;
size_t function_s = sizeof(function_t<N>);
f1_succ.clear();
while (lambda <= (completed + max_GE))
{
string pre_filen = "pre_" + imp_info + "_" + to_string(lambda) + ".bin";
fin.open(pre_filen, ios::binary);
if (fin)
{
set<function_t<N> > new_list;
f1_succ.insert(pair<int, set<function_t<N> > >(lambda, new_list));
auto to_insert = &(f1_succ[lambda]);
while (fin.read((char*)(&f_t), function_s))
{
(*to_insert).insert(f_t);
}
}
fin.close();
lambda++;
}
if(verbose) print_graphe_info();
}
template<int N>
void lighter<N>::search_batch(string args)
{
function_t<N> f1 = function_t<N>::INPUT_DEFAULT();
function_t<N> f2 = function_t<N>::INPUT_DEFAULT();
string sboxesfile = "sboxes" + to_string(N) + ".txt";
pre_parse_args();
while ((opt = getopt_long(myargc, myargv, "i:o:l:c:vuwap:f:r:", longopts, NULL)) != EOF)
{
switch(opt)
{
case 'a': all_gates(); break;
case 'v': verbose = true; break;
case 'c': pre_l = atoi(optarg)*100; cout << "Precomputed Limit : "<< optarg << endl; break;
case 'u': one_expand = true; break;
case 'w': write_in_file = true; break;
case 'i': f1.parse_function(optarg); break;
case 'o': sboxesfile = optarg; break;
case 'l': l = abs(atoi(optarg))*100; cout << "Lambda : "<< optarg << endl; break;
case 'p': omp_nb_threads = (atoi(optarg)); cout << "Thread number : "<< omp_nb_threads<<endl;break;
case 'f': conf_file = optarg; break;
case 'r': max_ram = atol(optarg); break;
case '?': fprintf(stderr, "wrong cmd line");
}
}
post_parse_args();
genImpInfo();
init_b(conf_file);
read_pre_bin(pre_l);
ifstream sboxes(sboxesfile);
string instance_LUT;
for(string line; getline(sboxes, line); )
{
istringstream instance_line(line);
if(getline(instance_line, instance_name, ','))
{
if(getline(instance_line, instance_LUT))
{
init_varbles();
f2.parse_function(instance_LUT);
if (f2.is_permutation())
{
clock_t t1 = clock();
cout << "From : " << f1.to_string() << endl;
cout << "To : " << f2.to_string() << endl;
mitm(f1, f2);
cout << "Best : " << (double)(shortest_path)/100 << " GE" << endl;
string is_best;
if (shortest_path <= (2*(l+min_GE) - max_GE)) is_best = "Best";
else is_best = "Unknown";
statistician.open(imp_info + "__" + "statistics.csv", ios::app);
statistician << instance_name << "," << double(shortest_path) / 100 << "," << is_best << "," << (((double)t1) / (CLOCKS_PER_SEC * 60.0)) << endl;
statistician.close();
t1 = clock() - t1;
cout << "Takes time (mins): " << (((double)t1) / (CLOCKS_PER_SEC * 60.0)) << endl;
}
}
}
}
reset();
}
template<int N>
double lighter<N>::search_single(string args)
{
clock_t t1 = clock();
function_t<N> f1 = function_t<N>::INPUT_DEFAULT();
function_t<N> f2 = function_t<N>::INPUT_DEFAULT();
string instance_LUT;
instance_name = "";
pre_parse_args();
while ((opt = getopt_long(myargc, myargv, "i:o:c:l:vuwap:f:r:n:", longopts, NULL)) != EOF)
{
switch(opt)
{
case 'c': pre_l = atoi(optarg)*100; cout << "Precomputed Limit : "<< optarg << endl; break;
case 'a': all_gates(); break;
case 'v': verbose = true; break;
case 'u': one_expand = true; break;
case 'w': write_in_file = true; break;
case 'i': f1.parse_function(optarg); break;
case 'o': f2.parse_function(optarg); instance_LUT = optarg; break;
case 'n': instance_name = optarg; break;
case 'l': l = abs(atoi(optarg))*100; cout << "Lambda : "<< optarg << endl; break;
case 'p': omp_nb_threads = (atoi(optarg)); cout << "Thread number : "<< omp_nb_threads<<endl;break;
case 'f': conf_file = optarg; break;
case 'r': max_ram = atol(optarg); break;
case '?': fprintf(stderr, "wrong cmd line");
}
}
post_parse_args();
if(instance_name == "") instance_name = instance_LUT;
genImpInfo();
init_b(conf_file);
init_varbles();
read_pre_bin(pre_l);
cout << "From : " << f1.to_string() << endl;
cout << "To : " << f2.to_string() << endl;
mitm(f1, f2);
double best = (double)(shortest_path)/100;
cout << "Best : " << best << " GE" << endl;
string is_best;
if (shortest_path <= (2*(l+min_GE) - max_GE)) is_best = "Best";
else is_best = "Unknown";
statistician.open(imp_info + "__" + "statistics.csv", ios::app);
statistician << instance_name << "," << best << "," << is_best << "," << (((double)t1) / (CLOCKS_PER_SEC * 60.0)) << endl;
statistician.close();
reset();
t1 = clock() - t1;
cout << "Takes time (mins): " << (((double)t1) / (CLOCKS_PER_SEC * 60.0)) << endl;
return best;
}
template<int N>
void lighter<N>::mitm(function_t<N> f1, function_t<N> f2)
{
/*
initilisation of the two graphs
we start by adding the function f and the identity
*/
unsorted_arrival = f2;
f1.sort();
f1.bit_slice_to_LUT();
f2.sort();
f2.bit_slice_to_LUT();
if (pre_l < 0) f1_succ.insert(pair<int, set<function_t<N> > >(0, {f1}));
f2_succ.insert(pair<int, set<function_t<N> > >(0, {f2}));
start = f1;
arrival = f2;
/*
we expand the two graphs
*/
count_list = 0;
while(count_list <= l)
{
if (count_list > pre_l)
{
expand(&f1_succ, &f2_succ, count_list);
pre_l = count_list;
}
else if (one_expand || (count_list == 0))
{
function_t<N> fun_found;
int vect_found;
if(is_in_graphe_collision(count_list, 0, f2, &fun_found, &vect_found, &f1_succ))
{
get_implementation(f2, fun_found, vect_found, &f2_succ, &f1_succ);
}
}
if(!one_expand)
{
expand(&f2_succ, &f1_succ, count_list);
}
if(verbose && (count_list%100) == 0) cout << "\033[0;32m" << count_list << "\033[0m" << endl;
count_list++;
if(2*count_list > shortest_path)
{
if (count_list > pre_l) write_pre_bin(0);
exit_m();
return;
}
}
if(verbose) print_graphe_info();
if (count_list > pre_l)
{
write_pre_bin(0);
}
exit_m();
return;
}
template<int N>
void lighter<N>::expand(map<int, set<function_t<N> > > *current,
map<int, set<function_t<N> > > *opposite,
int lambda)
{
auto to_expand = current->find(lambda);
if(to_expand != current->end())
{
for(auto bool_op : b)
{
int bool_op_cost = bool_op.op_cost;
vector<function_t<N> > successors;
for(auto fun : (*to_expand).second)
{
bool_op_fun(bool_op.op_id, fun, &successors);
if (successors.size() >= MAX_VEC_NODES)
{
sort(successors.begin(), successors.end());
successors.erase(unique(successors.begin(), successors.end()), successors.end());
}
}
if(successors.size() != 0)
{
sort(successors.begin(), successors.end());
successors.erase(unique(successors.begin(), successors.end()), successors.end());
auto s = current->find(lambda+bool_op.op_cost);
set<function_t<N> > new_list;
v_list_process(lambda, bool_op_cost, &successors, current, &new_list, opposite);
if(s != current->end())
{
s->second.insert(new_list.begin(), new_list.end());
}
else
{
current->insert(pair<int,set<function_t<N> > >(lambda+bool_op.op_cost, new_list));
}
}
}
}
}
template<int N>
void lighter<N>::v_list_process(int lambda, int op_cost, vector<function_t<N> > *tmp,
map<int, set<function_t<N> > > *current,
set<function_t<N> > *to_insert, map<int,set<function_t<N> > > *opposite)
{
function_t<N> fun_found;
int vect_found;
#pragma omp parallel for private(fun_found, vect_found) num_threads(omp_nb_threads)
for(auto it_tmp = tmp->begin(); it_tmp < tmp->end(); it_tmp++)
{
if(!is_in_graphe(lambda, op_cost, (*it_tmp), current))
{
#pragma omp critical
{
(*it_tmp).bit_slice_to_LUT();
to_insert->insert(*it_tmp);
nodes_cmp++;
if(nodes_cmp == max_nodes)
{
exit_m();
}
}
if(is_in_graphe_collision(lambda, op_cost, (*it_tmp), &fun_found, &vect_found, opposite))
{
#pragma omp critical
{
//system("notify-send 'Collision'");
get_implementation((*it_tmp), fun_found, vect_found, current, opposite);
}
}
}
}
}
template<int N>
bool lighter<N>::is_in_graphe(int lambda, int op_cost, function_t<N> f, map<int, set<function_t<N> > > *g)
{
for(auto it = g->begin(); it != g->end() ; it++)
{
if((*it).second.find(f) != (*it).second.end())
{
if((*it).first > lambda+op_cost)
{
#pragma omp critical
{
(*it).second.erase(f);
}
return false;
}
return true;
}
}
return false;
}
template<int N>
bool lighter<N>::is_in_graphe_collision(int lambda, int op_cost, function_t<N> f,
function_t<N> *fun_found,
int *vect_found,
map<int, set<function_t<N> > > *g)
{
for(auto it = g->begin(); it != g->end(); it++)
{
if (it->first >= lambda - max_GE)
{
if( lambda + (*it).first + op_cost >= shortest_path ) return false;
if((*it).second.find(f) != (*it).second.end())
{
*vect_found = (*it).first;
*fun_found = *((*it).second.find(f));
return true;
}
}
}
return false;
}
template<int N>
double lighter<N>::search_single_concatenate(string args)
{
clock_t t1 = clock();
function_t<N> f1 = function_t<N>::INPUT_DEFAULT();
function_t<N> f2 = function_t<N>::INPUT_DEFAULT();
string instance_LUT;
instance_name = "";
pre_parse_args();
while ((opt = getopt_long(myargc, myargv, "i:o:c:l:vuwap:f:r:n:", longopts, NULL)) != EOF)
{
switch(opt)
{
case 'c': pre_l = atoi(optarg)*100; cout << "Precomputed Limit : "<< optarg << endl; break;
case 'a': all_gates(); break;
case 'v': verbose = true; break;
case 'u': one_expand = true; break;
case 'w': write_in_file = true; break;
case 'i': f1.parse_function(optarg); break;
case 'o': f2.parse_function(optarg); instance_LUT = optarg; break;
case 'n': instance_name = optarg; break;
case 'l': l = abs(atoi(optarg))*100; cout << "Lambda : "<< optarg << endl; break;
case 'p': omp_nb_threads = (atoi(optarg)); cout << "Thread number : "<< omp_nb_threads<<endl;break;
case 'f': conf_file = optarg; break;
case 'r': max_ram = atol(optarg); break;
case '?': fprintf(stderr, "wrong cmd line");
}
}
post_parse_args();
if(instance_name == "") instance_name = instance_LUT;
genImpInfo();
init_b(conf_file);
init_varbles();
read_pre_bin(pre_l);
cout << "From : " << f1.to_string() << endl;
cout << "To : " << f2.to_string() << endl;
concatenate(f1, f2);
double best = (double)shortest_path/100.0;
cout << "Best : " << best << " GE" << endl;
string is_best;
if (shortest_path <= (2*(l+min_GE) - max_GE)) is_best = "Best";
else is_best = "Unknown";
statistician.open(imp_info + "__" + "statistics.csv", ios::app);
statistician << instance_name << "," << best << "," << is_best << "," << (((double)t1) / (CLOCKS_PER_SEC * 60.0)) << endl;
statistician.close();
reset();
t1 = clock() - t1;
cout << "Takes time (mins): " << (((double)t1) / (CLOCKS_PER_SEC * 60.0)) << endl;
return best;
}
template<int N>
void lighter<N>::search_batch_concatenate(string args)
{
function_t<N> f1 = function_t<N>::INPUT_DEFAULT();
function_t<N> f2 = function_t<N>::INPUT_DEFAULT();
string sboxesfile = "sboxes" + to_string(N) + ".txt";
pre_parse_args();
while ((opt = getopt_long(myargc, myargv, "i:o:l:c:vuwap:f:r:", longopts, NULL)) != EOF)
{
switch(opt)
{
case 'c': pre_l = atoi(optarg)*100; cout << "Precomputed Limit : "<< optarg << endl; break;
case 'a': all_gates(); break;
case 'v': verbose = true; break;
case 'u': one_expand = true; break;
case 'w': write_in_file = true; break;
case 'i': f1.parse_function(optarg); break;
case 'o': sboxesfile = optarg; break;
case 'l': l = abs(atoi(optarg))*100; cout << "Lambda : "<< optarg << endl; break;
case 'p': omp_nb_threads = (atoi(optarg)); cout << "Thread number : "<< omp_nb_threads<<endl;break;
case 'f': conf_file = optarg; break;
case 'r': max_ram = atol(optarg); break;
case '?': fprintf(stderr, "wrong cmd line");
}
}
post_parse_args();
genImpInfo();
string statisticianfn = imp_info + "-o" + sboxesfile.substr(0, sboxesfile.rfind('.')) + "__" + "statistics.csv";
statistician.open(statisticianfn.c_str(), ios::app);
evaluate_writeTitleLine(statistician);
statistician.close();
init_b(conf_file);
read_pre_bin(pre_l);
ifstream sboxes(sboxesfile);
string instance_LUT;
for(string line; getline(sboxes, line); )
{
istringstream instance_line(line);
if(getline(instance_line, instance_name, ','))
{
if(getline(instance_line, instance_LUT))
{
clock_t t1 = clock();
init_varbles();
f2.parse_function(instance_LUT);
string is_best = "-";
if (f2.is_permutation())
{
cout << "From : " << f1.to_string() << endl;
cout << "To : " << f2.to_string() << endl;
concatenate(f1, f2);
cout << "Best : " << to_string((double)(shortest_path)/100.0) << " GE" << endl;
if (shortest_path <= (2*(l+min_GE) - max_GE)) is_best = "Best";
else is_best = "Unknown";
}
statistician.open(statisticianfn.c_str(), ios::app);
evaluate(instance_name, f2, shortest_path, is_best, statistician);
statistician.close();
t1 = clock() - t1;
cout << "Takes time (mins): " << (((double)t1) / (CLOCKS_PER_SEC * 60.0)) << endl;
}
}
}
reset();
}
template<int N>
void lighter<N>::concatenate(function_t<N> f1, function_t<N> f2)
{
unsorted_arrival = f2;
f1.sort(); f1.bit_slice_to_LUT();
f2.sort(PEo); f2.bit_slice_to_LUT();
start = f1;
arrival = f2;
if (pre_l < 0) f1_succ.insert(pair<int, set<function_t<N> > >(0, {f1}));
count_list = 0;
while (count_list <= l + max_GE)
{
if ((count_list > pre_l) && (count_list <= l))
{
expand(count_list);
match(count_list);
write_pre_bin(count_list+min_GE);
pre_l = count_list;
}
else
{
match(count_list);
}
if(verbose && (count_list%100) == 0) cout << count_list << endl;
count_list++;
if(2*count_list - max_GE + 1 > shortest_path)
{
exit_m();
return;
}
}
if (verbose) print_graphe_info();
exit_m();
return;
}
template<int N>
void lighter<N>::expand(int lambda)
{
auto to_expand = f1_succ.find(lambda);
if(to_expand != f1_succ.end())
{
for(auto bool_op : b)
{
int bool_op_cost = bool_op.op_cost;
vector<function_t<N> > successors;
for(auto fun : (*to_expand).second)
{
bool_op_fun(bool_op.op_id, fun, &successors);
if (successors.size() >= MAX_VEC_NODES)
{
sort(successors.begin(), successors.end());
successors.erase(unique(successors.begin(), successors.end()), successors.end());
}
}
if(successors.size() != 0)
{
sort(successors.begin(), successors.end());
successors.erase(unique(successors.begin(), successors.end()), successors.end());
auto s = f1_succ.find(lambda+bool_op.op_cost);
set<function_t<N> > new_list;
v_list_process(lambda, bool_op_cost, &successors, &new_list);
if(s != f1_succ.end())
{
s->second.insert(new_list.begin(), new_list.end());
}
else
{
f1_succ.insert(pair<int,set<function_t<N> > >(lambda+bool_op.op_cost, new_list));
}
}
}
}
}
template<int N>
void lighter<N>::v_list_process(int lambda, int op_cost, vector<function_t<N> > *tmp,
set<function_t<N> > *to_insert)
{
function_t<N> fun_found;
int vect_found;
#pragma omp parallel for private(fun_found, vect_found) num_threads(omp_nb_threads)
for(auto it_tmp = tmp->begin(); it_tmp < tmp->end(); it_tmp++)
{
if(!is_in_graphe(lambda, op_cost, (*it_tmp)))
{
#pragma omp critical
{
(*it_tmp).bit_slice_to_LUT();
to_insert->insert(*it_tmp);
nodes_cmp++;
if(nodes_cmp == max_nodes)
{
exit_m();
}
}
}
}
}
template<int N>
bool lighter<N>::is_in_graphe(int lambda, int op_cost, function_t<N> f)
{
for(auto it = f1_succ.begin(); it != f1_succ.end() ; it++)
{
if((*it).second.find(f) != (*it).second.end())
{
if((*it).first > lambda+op_cost)
{
#pragma omp critical
{
(*it).second.erase(f);
}
return false;
}
return true;
}
}
return false;
}
template<int N>
void lighter<N>::match(int c1)
{
auto f1_it = f1_succ.find(c1);
if (f1_it != f1_succ.end())
{
vector<const function_t<N>* > tmp_vec;
for (auto set1_it = f1_it->second.begin(); set1_it != f1_it->second.end(); set1_it++)
{
tmp_vec.push_back( &(*set1_it) );
}
//for (auto set1_it = f1_it->second.begin(); set1_it != f1_it->second.end(); set1_it++)
#pragma omp parallel for num_threads(omp_nb_threads)
for (auto vec1_it = tmp_vec.begin(); vec1_it < tmp_vec.end(); vec1_it++)
{
#pragma omp flush
if (2 * c1 - max_GE + 1 < shortest_path)
{
//auto func1 = *set1_it;
auto func1 = **vec1_it;
bit_slice_t<N> cp_bit_slice = OPs<N>.composite(func1.LUT, arrival.LUT);
function_t<N> func_comp(cp_bit_slice);
int PEm[N];
func_comp.sort(PEm);
auto f2_it = f1_succ.begin();
while ((f2_it != f1_succ.end()) && (f2_it->first <= (c1 + max_GE)))
{
#pragma omp flush
if ((c1 + f2_it->first) < shortest_path)
{
int c2;
c2 = f2_it->first;
if (c2 > (c1 - max_GE))
{
auto vec2_it = f2_it->second.find(func_comp);
if (vec2_it != f2_it->second.end())
{
auto func2 = *vec2_it;
#pragma omp flush
#pragma omp critical
{
if (shortest_path > (c1 + c2))
{
shortest_path = c1 + c2;
get_implementation_concatenate(func2, c2, func1, c1, PEm);
}
}
}
}
f2_it++;
}
else
{
break;
}
}
}
}
}
}
template<int N>
void lighter<N>::generate(string args)
{
clock_t t1 = clock();
pre_parse_args();
while ((opt = getopt_long(myargc, myargv, "o:l:c:vwap:f:r:s:", longopts, NULL)) != EOF)
{
switch(opt)
{
case 'c': pre_l = atoi(optarg)*100; cout << "Precomputed Limit : "<< optarg << endl; break;
case 'a': all_gates(); break;
case 'v': verbose = true; break;
case 'w': write_in_file = true; break;
case 'o': sboxesfile = optarg; break;
case 'l': l = abs(atoi(optarg))*100; cout << "Lambda : "<< optarg << endl; break;
case 'p': omp_nb_threads = (atoi(optarg)); cout << "Thread number : "<< omp_nb_threads<<endl;break;
case 'f': conf_file = optarg; break;
case 's': criteria_file = optarg; break;
case 'r': max_ram = atol(optarg); break;
case '?': fprintf(stderr, "wrong cmd line");
}
}
post_parse_args();
genImpInfo();
for (int tid = 0; tid < omp_nb_threads; tid++)
{
string outfn = imp_info + "__" + "statistics.csv";
string outfn_sub = "_Part" + to_string(tid);
outfn.insert(outfn.rfind('.'), outfn_sub);
ofstream outf(outfn.c_str(), ios::app);
evaluate_writeTitleLine(outf);
outf.close();
}
// statistician.open(imp_info + "__" + "statistics.csv", ios::app);
// evaluate_writeTitleLine(statistician);
// statistician.close();
init_b(conf_file);
init_critiera(criteria_file);
read_pre_bin(pre_l);
start = function_t<N>::INPUT_DEFAULT();
generate();
reset();
t1 = clock() - t1;
cout << "Takes time (mins): " << (((double)t1) / (CLOCKS_PER_SEC * 60.0)) << endl;
}
#if 0
template<int N>
void lighter<N>::generate()
{
function_t<N> f1 = function_t<N>::INPUT_DEFAULT();
f1.sort();
f1.bit_slice_to_LUT();
if (pre_l < 0) f1_succ.insert(pair<int, set<function_t<N> > >(0, {f1}));
count_list = 0;
while (count_list <= l + max_GE)
{
if ((count_list > pre_l) && (count_list <= l))
{
expand(count_list);
filter(count_list);
write_pre_bin(count_list+min_GE);
pre_l = count_list;
}
else
{
filter(count_list);
}
if(verbose && (count_list%100) == 0) cout << count_list << endl;
count_list++;
if(2*count_list - max_GE + 1 > Cost_Criteria)
{
exit_m();
return;
}
}
if(verbose) print_graphe_info();
exit_m();
return;
}
#endif
template<int N>
void lighter<N>::generate()
{
function_t<N> f1 = function_t<N>::INPUT_DEFAULT();
f1.sort();
f1.bit_slice_to_LUT();
if (pre_l < 0)
{
f1_succ.insert(pair<int, set<function_t<N> > >(0, {f1}));
}
count_list = 0;
while (count_list <= l + max_GE)
{
if(verbose && (count_list%100) == 0) cout << count_list << endl;
if ((count_list > pre_l) && (count_list <= l))
{
expand(count_list);
filter_pre(count_list);
}
else
{
filter_pre(count_list);
}
count_list++;
// All S-boxes which can be implemented with <= l + min_GE
// have been stored in the precomputed graph
// Thus, if (l + min_GE >= Cost_Criteria) and all precomputed
// S-boxes has been checked, no need to expand the graph further.
if((count_list <= l + min_GE) && (count_list > Cost_Criteria))
{
exit_m();
return;
}
else if ((count_list > l) && (count_list > Cost_Criteria))
{
break;
}
}
#if 0
// c1 + c2 <= c1 + c1 + max_GE; c1 + c2 > l + min_GE;
// c1 + c1 + max_GE > l + min_GE
int c1LowerBound = (l + min_GE >= max_GE ? (((l + min_GE - max_GE) / 2) + 1) : 0);
count_list = c1LowerBound;
while ((count_list <= l + max_GE) &&
(count_list + count_list - max_GE + 1 <= Cost_Criteria)) // c1 + c2 >= c1 + c1 - max_GE + 1
{
filter(count_list);
if(verbose && (count_list%100) == 0)
{
cout
<< (count_list + count_list - max_GE + 1) << " ~ "