DKGCrypto.h

/*
    Copyright (C) 2019-Present SKALE Labs

    This file is part of sgxwallet.

    sgxwallet is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as published
    by the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    sgxwallet 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 Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with sgxwallet.  If not, see <https://www.gnu.org/licenses/>.

    @file DKGCrypto.h
    @author Stan Kladko
    @date 2019
*/

#ifndef SGXD_DKGCRYPTO_H
#define SGXD_DKGCRYPTO_H

#include <string>
#include <vector>

#include <libff/algebra/curves/alt_bn128/alt_bn128_pp.hpp>

using namespace std;

string gen_dkg_poly(int _t);

vector<vector<string>> get_verif_vect(const string &encryptedPolyHex, int t);

vector<vector<string>>
getVerificationVectorMult(const std::string &encryptedPolyHex, int t, int n,
                          size_t ind);

string getSecretShares(const string &_polyName, const char *_encryptedPolyHex,
                       const vector<string> &_publicKeys, int _t, int _n);

string getSecretSharesV2(const string &_polyName, const char *_encryptedPolyHex,
                         const vector<string> &_publicKeys, int _t, int _n);

bool verifyShares(const char *publicShares, const char *encr_sshare,
                  const char *encryptedKeyHex, int t, int n, int ind);

bool verifySharesV2(const char *publicShares, const char *encr_sshare,
                    const char *encryptedKeyHex, int t, int n, int ind);

string decryptDHKey(const string &polyName, int ind);

bool createBLSShare(const string &blsKeyName, const char *s_shares,
                    const char *encryptedKeyHex);

bool createBLSShareV2(const string &blsKeyName, const char *s_shares,
                      const char *encryptedKeyHex);

vector<string> getBLSPubKey(const char *encryptedKeyHex);

vector<string> mult_G2(const string &x);

string convertHexToDec(const string &hex_str);

string convertG2ToString(const libff::alt_bn128_G2 &elem, int base = 10,
                         const string &delim = ":");

vector<string> calculateAllBlsPublicKeys(const vector<string> &public_shares);

bool testCreateBLSShare(const char *s_shares);

#endif // SGXD_DKGCRYPTO_H