SKALE-4411 initialize te crypto

CryptoTools.cpp

+/*
+    Copyright (C) 2021-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 CryptoTools.cpp
+    @author Oleh Nikolaiev
+    @date 2021
+*/
+
+#include <vector>
+
+#include "common.h"
+#include "CryptoTools.h"
+
+using std::vector;
+
+int char2int(char _input) {
+    if (_input >= '0' && _input <= '9')
+        return _input - '0';
+    if (_input >= 'A' && _input <= 'F')
+        return _input - 'A' + 10;
+    if (_input >= 'a' && _input <= 'f')
+        return _input - 'a' + 10;
+    return -1;
+}
+
+vector<char> carray2Hex(const unsigned char *d, uint64_t _len) {
+
+    CHECK_STATE(d);
+
+    vector<char> _hexArray( 2 * _len + 1);
+
+    char hexval[16] = {'0', '1', '2', '3', '4', '5', '6', '7',
+                       '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
+
+    for (uint64_t j = 0; j < _len; j++) {
+        _hexArray[j * 2] = hexval[((d[j] >> 4) & 0xF)];
+        _hexArray[j * 2 + 1] = hexval[(d[j]) & 0x0F];
+    }
+
+    _hexArray[_len * 2] = 0;
+
+    return _hexArray;
+}
+
+bool hex2carray(const char *_hex, uint64_t *_bin_len,
+                uint8_t *_bin, uint64_t _max_length) {
+    CHECK_STATE(_hex);
+    CHECK_STATE(_bin);
+    CHECK_STATE(_bin_len)
+
+    uint64_t len = strnlen(_hex, 2 * _max_length + 1);
+
+    CHECK_STATE(len != 2 * _max_length + 1);
+
+    CHECK_STATE(len <= 2 * _max_length);
+
+    if (len == 0 && len % 2 == 1)
+        return false;
+
+    *_bin_len = len / 2;
+
+    for (uint64_t i = 0; i < len / 2; i++) {
+        int high = char2int((char) _hex[i * 2]);
+        int low = char2int((char) _hex[i * 2 + 1]);
+
+        if (high < 0 || low < 0) {
+            return false;
+        }
+
+        _bin[i] = (unsigned char) (high * 16 + low);
+    }
+
+    return true;
+}
\ No newline at end of file

CryptoTools.h

+/*
+    Copyright (C) 2021-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 CryptoTools.h
+    @author Oleh Nikolaiev
+    @date 2021
+*/
+
+#ifndef SGXWALLET_CRYPTOTOOLS_H
+#define SGXWALLET_CRYPTOTOOLS_H
+
+#ifdef __cplusplus
+#define EXTERNC extern "C"
+#else
+#define EXTERNC
+#endif
+
+#include "stddef.h"
+#include "stdint.h"
+#include <string>
+#include <vector>
+
+EXTERNC int char2int(char _input);
+
+EXTERNC std::vector<char> carray2Hex(const unsigned char *d, uint64_t _len);
+
+EXTERNC bool hex2carray(const char * _hex, uint64_t  *_bin_len,
+                 uint8_t* _bin, uint64_t _max_length );
+
+#endif // SGXWALLET_CRYPTOTOOLS_H

TECrypto.cpp

+/*
+    Copyright (C) 2021-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 TECrypto.cpp
+    @author Oleh Nikolaiev
+    @date 2021
+*/
+
+#include <memory>
+#include "leveldb/db.h"
+#include <jsonrpccpp/server/connectors/httpserver.h>
+
+#include "threshold_encryption/threshold_encryption.h"
+
+#include "sgxwallet_common.h"
+#include "sgxwallet.h"
+#include "SGXException.h"
+#include "third_party/spdlog/spdlog.h"
+#include "common.h"
+#include "SGXWalletServer.h"
+
+#include "SEKManager.h"
+#include "LevelDB.h"
+#include "ServerInit.h"
+#include "TECrypto.h"
+#include "CryptoTools.h"
+
+vector<string> calculateDecryptionShare(const string& encryptedKeyShare,
+                                        const string& publicDecryptionValue) {
+    size_t sz = 0;
+
+    SAFE_UINT8_BUF(encryptedKey, BUF_LEN);
+
+    bool result = hex2carray(encryptedKeyShare.data(), &sz, encryptedKey, BUF_LEN);
+
+    if (!result) {
+        BOOST_THROW_EXCEPTION(invalid_argument("Invalid hex encrypted key"));
+    }    
+}
\ No newline at end of file

TECrypto.h

+/*
+    Copyright (C) 2021-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 TECrypto.h
+    @author Oleh Nikolaiev
+    @date 2021
+*/
+
+#ifndef SGXWALLET_TECRYPTO_H
+#define SGXWALLET_TECRYPTO_H
+
+#ifdef __cplusplus
+#define EXTERNC extern "C"
+#else
+#define EXTERNC
+#endif
+
+#include "stddef.h"
+#include "stdint.h"
+#include <string>
+#include <vector>
+
+std::vector<std::string> calculateDecryptionShare(const std::string& encryptedKeyShare,
+                                                  const std::string& publicDecryptionValue);
+
+#endif // SGXWALLET_TECRYPTO_H

secure_enclave/TEUtils.cpp

+/*
+    Copyright (C) 2021-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 TEUtils.cpp
+    @author Oleh Nikolaiev
+    @date 2021
+*/
+
+#ifndef SGXWALLET_DKGUTILS_H
+#define SGXWALLET_DKGUTILS_H
+
+#ifdef __cplusplus
+#define EXTERNC extern "C"
+#else
+#define EXTERNC
+#endif
+
+#ifdef USER_SPACE
+
+#include <gmp.h>
+#else
+#include <../tgmp-build/include/sgx_tgmp.h>
+#endif
+
+EXTERNC int getDecryptionShare( char* secret, unsigned _t);
+
+#endif

secure_enclave/TEUtils.h

+/*
+    Copyright (C) 2021-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 TEUtils.h
+    @author Oleh Nikolaiev
+    @date 2021
+*/
+
+#ifndef SGXWALLET_DKGUTILS_H
+#define SGXWALLET_DKGUTILS_H
+
+#ifdef __cplusplus
+#define EXTERNC extern "C"
+#else
+#define EXTERNC
+#endif
+
+#ifdef USER_SPACE
+
+#include <gmp.h>
+#else
+#include <../tgmp-build/include/sgx_tgmp.h>
+#endif
+
+EXTERNC int getDecryptionShare(char* secret, unsigned _t);
+
+#endif