108 lines
2 KiB
C++
108 lines
2 KiB
C++
|
|
/*
|
|
* This file is part of Codecrypt.
|
|
*
|
|
* Codecrypt is free software: you can redistribute it and/or modify it
|
|
* under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or (at
|
|
* your option) any later version.
|
|
*
|
|
* Codecrypt 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 Lesser General Public
|
|
* License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with Codecrypt. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef _ccr_nd_h_
|
|
#define _ccr_nd_h_
|
|
|
|
#include "gf2m.h"
|
|
#include "matrix.h"
|
|
#include "permutation.h"
|
|
#include "polynomial.h"
|
|
#include "prng.h"
|
|
#include "sencode.h"
|
|
|
|
/*
|
|
* classical Niederreiter
|
|
*/
|
|
namespace nd
|
|
{
|
|
class privkey
|
|
{
|
|
public:
|
|
matrix Sinv;
|
|
permutation Pinv;
|
|
polynomial g;
|
|
gf2m fld;
|
|
|
|
//derivable.
|
|
std::vector<polynomial> sqInv;
|
|
|
|
int decrypt (const bvector&, bvector&);
|
|
int sign (const bvector&, bvector&, uint, uint, prng&);
|
|
int prepare();
|
|
|
|
uint cipher_size() {
|
|
return Sinv.size();
|
|
}
|
|
uint plain_size() {
|
|
return Pinv.size();
|
|
}
|
|
uint plain_weight() {
|
|
return g.degree();
|
|
}
|
|
uint hash_size() {
|
|
return cipher_size();
|
|
}
|
|
uint signature_size() {
|
|
return plain_size();
|
|
}
|
|
uint signature_weight() {
|
|
return plain_weight();
|
|
}
|
|
|
|
sencode* serialize();
|
|
bool unserialize (sencode*);
|
|
};
|
|
|
|
class pubkey
|
|
{
|
|
public:
|
|
matrix H;
|
|
uint t;
|
|
|
|
int encrypt (const bvector&, bvector&);
|
|
int verify (const bvector&, const bvector&, uint);
|
|
|
|
uint cipher_size() {
|
|
return H.height();
|
|
}
|
|
uint plain_size() {
|
|
return H.width();
|
|
}
|
|
uint plain_weight() {
|
|
return t;
|
|
}
|
|
uint hash_size() {
|
|
return cipher_size();
|
|
}
|
|
uint signature_size() {
|
|
return plain_size();
|
|
}
|
|
uint signature_weight() {
|
|
return plain_weight();
|
|
}
|
|
|
|
sencode* serialize();
|
|
bool unserialize (sencode*);
|
|
};
|
|
|
|
int generate (pubkey&, privkey&, prng&, uint m, uint t);
|
|
}
|
|
|
|
#endif
|