diff options
Diffstat (limited to 'src/common/Cryptography/BigNumber.cpp')
| -rw-r--r-- | src/common/Cryptography/BigNumber.cpp | 42 |
1 files changed, 22 insertions, 20 deletions
diff --git a/src/common/Cryptography/BigNumber.cpp b/src/common/Cryptography/BigNumber.cpp index d557b85141..1cd8d6a199 100644 --- a/src/common/Cryptography/BigNumber.cpp +++ b/src/common/Cryptography/BigNumber.cpp @@ -1,11 +1,25 @@ /* - * Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU GPL v2 license, you may redistribute it and/or modify it under version 2 of the License, or (at your option), any later version. - * Copyright (C) 2021+ WarheadCore <https://github.com/WarheadCore> + * This file is part of the AzerothCore Project. See AUTHORS file for Copyright information + * + * This program 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. + * + * This program 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 General Public License along + * with this program. If not, see <http://www.gnu.org/licenses/>. */ -#include "Cryptography/BigNumber.h" +#include "BigNumber.h" #include "Errors.h" #include <algorithm> +#include <cstring> +#include <memory> #include <openssl/bn.h> BigNumber::BigNumber() @@ -25,9 +39,7 @@ void BigNumber::SetDword(int32 val) { SetDword(uint32(std::abs(val))); if (val < 0) - { BN_set_negative(_bn, 1); - } } void BigNumber::SetDword(uint32 val) @@ -50,9 +62,7 @@ void BigNumber::SetBinary(uint8 const* bytes, int32 len, bool littleEndian) uint8* array = new uint8[len]; for (int i = 0; i < len; i++) - { array[i] = bytes[len - 1 - i]; - } BN_bin2bn(array, len, _bn); @@ -62,9 +72,7 @@ void BigNumber::SetBinary(uint8 const* bytes, int32 len, bool littleEndian) #endif } else - { BN_bin2bn(bytes, len, _bn); - } } bool BigNumber::SetHexStr(char const* str) @@ -81,9 +89,7 @@ void BigNumber::SetRand(int32 numbits) BigNumber& BigNumber::operator=(BigNumber const& bn) { if (this == &bn) - { return *this; - } BN_copy(_bn, bn._bn); return *this; @@ -103,7 +109,7 @@ BigNumber& BigNumber::operator-=(BigNumber const& bn) BigNumber& BigNumber::operator*=(BigNumber const& bn) { - BN_CTX* bnctx; + BN_CTX *bnctx; bnctx = BN_CTX_new(); BN_mul(_bn, _bn, bn._bn, bnctx); @@ -114,7 +120,7 @@ BigNumber& BigNumber::operator*=(BigNumber const& bn) BigNumber& BigNumber::operator/=(BigNumber const& bn) { - BN_CTX* bnctx; + BN_CTX *bnctx; bnctx = BN_CTX_new(); BN_div(_bn, nullptr, _bn, bn._bn, bnctx); @@ -125,7 +131,7 @@ BigNumber& BigNumber::operator/=(BigNumber const& bn) BigNumber& BigNumber::operator%=(BigNumber const& bn) { - BN_CTX* bnctx; + BN_CTX *bnctx; bnctx = BN_CTX_new(); BN_mod(_bn, _bn, bn._bn, bnctx); @@ -148,7 +154,7 @@ int BigNumber::CompareTo(BigNumber const& bn) const BigNumber BigNumber::Exp(BigNumber const& bn) const { BigNumber ret; - BN_CTX* bnctx; + BN_CTX *bnctx; bnctx = BN_CTX_new(); BN_exp(ret._bn, _bn, bn._bn, bnctx); @@ -160,7 +166,7 @@ BigNumber BigNumber::Exp(BigNumber const& bn) const BigNumber BigNumber::ModExp(BigNumber const& bn1, BigNumber const& bn2) const { BigNumber ret; - BN_CTX* bnctx; + BN_CTX *bnctx; bnctx = BN_CTX_new(); BN_mod_exp(ret._bn, _bn, bn1._bn, bn2._bn, bnctx); @@ -201,17 +207,13 @@ void BigNumber::GetBytes(uint8* buf, size_t bufsize, bool littleEndian) const // If we need more bytes than length of BigNumber set the rest to 0 if (numBytes < bufsize) - { memset((void*)buf, 0, bufsize); - } BN_bn2bin(_bn, buf + (bufsize - numBytes)); // openssl's BN stores data internally in big endian format, reverse if little endian desired if (littleEndian) - { std::reverse(buf, buf + bufsize); - } #else int res = littleEndian ? BN_bn2lebinpad(_bn, buf, bufsize) : BN_bn2binpad(_bn, buf, bufsize); ASSERT(res > 0, "Buffer of size {} is too small to hold bignum with {} bytes.\n", bufsize, BN_num_bytes(_bn)); |