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Move pnUtBigNum to pnEncryption/plBigNum.

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This commit is contained in:
Darryl Pogue
2012-03-11 20:04:10 -07:00
parent b8e4f00ad6
commit 9479aadb3a
18 changed files with 129 additions and 147 deletions
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2
Sources/Plasma/NucleusLib/pnUtils/CMakeLists.txt
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@ -8,7 +8,6 @@ set(pnUtils_HEADERS
pnUtAddr.h
pnUtAllIncludes.h
pnUtArray.h
pnUtBigNum.h
pnUtCmd.h
pnUtCrypt.h
pnUtHash.h
@ -27,7 +26,6 @@ set(pnUtils_HEADERS
set(pnUtils_SOURCES
pnUtArray.cpp
pnUtBigNum.cpp
pnUtCmd.cpp
pnUtCrypt.cpp
pnUtHash.cpp

1
Sources/Plasma/NucleusLib/pnUtils/pnUtAllIncludes.h
View File

@ -63,7 +63,6 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
#include "pnUtStr.h"
#include "pnUtRef.h"
#include "pnUtPath.h"
#include "pnUtBigNum.h"
#include "pnUtCmd.h"
#include "pnUtMisc.h"
#include "pnUtCrypt.h"

160
Sources/Plasma/NucleusLib/pnUtils/pnUtBigNum.cpp
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@ -1,160 +0,0 @@
/*==LICENSE==*
CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.
This program 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.
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 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/>.
Additional permissions under GNU GPL version 3 section 7
If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
/*****************************************************************************
*
* $/Plasma20/Sources/Plasma/NucleusLib/pnUtils/Private/pnUtBigNum.cpp
*
***/
#include "pnUtBigNum.h"
#include <openssl/rand.h>
#include <algorithm>
static inline void byteswap(size_t size, unsigned char * data)
{
for (size_t i = 0; i < (size / 2); ++i)
std::swap(data[i], data[size - i - 1]);
}
/****************************************************************************
*
* BigNum public methods
*
***/
//===========================================================================
BigNum::BigNum () : m_context(nil)
{
BN_init(&m_number);
}
//===========================================================================
BigNum::BigNum (const BigNum & a) : m_context(nil)
{
BN_init(&m_number);
BN_copy(&m_number, &a.m_number);
}
//===========================================================================
BigNum::BigNum (unsigned a) : m_context(nil)
{
BN_init(&m_number);
BN_set_word(&m_number, a);
}
//===========================================================================
BigNum::BigNum (unsigned bytes, const void * data, bool le) : m_context(nil)
{
BN_init(&m_number);
if (le)
FromData_LE(bytes, data);
else
FromData_BE(bytes, data);
}
//===========================================================================
BigNum::~BigNum ()
{
if (m_context)
BN_CTX_free(m_context);
BN_free(&m_number);
}
//===========================================================================
int BigNum::Compare (uint32_t a) const {
// -1 if (this < a)
// 0 if (this == a)
// 1 if (this > a)
if (BN_is_word(&m_number, a))
return 0;
// This returns 0xFFFFFFFFL if the number is bigger than one uint16_t, so
// it doesn't need any size check
if (BN_get_word(&m_number) < a)
return -1;
// Not less or equal, must be greater
return 1;
}
//===========================================================================
void BigNum::FromData_LE (unsigned bytes, const void * data)
{
unsigned char * buffer = new unsigned char[bytes];
memcpy(buffer, data, bytes);
byteswap(bytes, buffer);
BN_bin2bn(buffer, bytes, &m_number);
delete [] buffer;
}
//===========================================================================
unsigned char * BigNum::GetData_BE (unsigned * bytes) const
{
*bytes = BN_num_bytes(&m_number);
unsigned char * data = new unsigned char[*bytes];
BN_bn2bin(&m_number, data);
return data;
}
//===========================================================================
unsigned char * BigNum::GetData_LE (unsigned * bytes) const
{
*bytes = BN_num_bytes(&m_number);
unsigned char * data = new unsigned char[*bytes];
BN_bn2bin(&m_number, data);
byteswap(*bytes, data);
return data;
}
//===========================================================================
void BigNum::Rand (unsigned bits, BigNum * seed)
{
// this = random number with bits or fewer bits
unsigned seedbytes;
unsigned char * seedData = seed->GetData_BE(&seedbytes);
RAND_seed(seedData, seedbytes);
BN_rand(&m_number, bits, 0, 0);
delete [] seedData;
}

229
Sources/Plasma/NucleusLib/pnUtils/pnUtBigNum.h
View File

@ -1,229 +0,0 @@
/*==LICENSE==*
CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.
This program 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.
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 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/>.
Additional permissions under GNU GPL version 3 section 7
If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
/*****************************************************************************
*
* $/Plasma20/Sources/Plasma/NucleusLib/pnUtils/Private/pnUtBigNum.h
*
***/
#ifndef PLASMA20_SOURCES_PLASMA_NUCLEUSLIB_PNUTILS_PRIVATE_PNUTBIGNUM_H
#define PLASMA20_SOURCES_PLASMA_NUCLEUSLIB_PNUTILS_PRIVATE_PNUTBIGNUM_H
#include "Pch.h"
/*****************************************************************************
*
* BigNum class
*
***/
#include <openssl/bn.h>
class BigNum {
private:
BIGNUM m_number;
mutable BN_CTX * m_context;
BN_CTX * GetContext () const
{
if (!m_context)
m_context = BN_CTX_new();
return m_context;
}
public:
BigNum ();
BigNum (const BigNum & a);
BigNum (unsigned a);
BigNum (unsigned bytess, const void * data, bool le=false);
~BigNum ();
BigNum & operator= (const BigNum & a)
{
BN_copy(&m_number, &a.m_number);
return *this;
}
// Constant parameters need not be distinct from the destination or from
// each other
void Add (const BigNum & a, uint32_t b)
{
// this = a + b
BN_copy(&m_number, &a.m_number);
BN_add_word(&m_number, b);
}
void Add (const BigNum & a, const BigNum & b)
{
// this = a + b
BN_add(&m_number, &a.m_number, &b.m_number);
}
int Compare (uint32_t a) const;
int Compare (const BigNum & a) const
{
return BN_cmp(&m_number, &a.m_number);
}
bool isZero() const
{
return BN_is_zero(&m_number);
}
void Div (const BigNum & a, uint32_t b, uint32_t * remainder)
{
// this = a / b, remainder = a % b
BN_copy(&m_number, &a.m_number);
*remainder = (uint32_t)BN_div_word(&m_number, b);
}
void Div (const BigNum & a, const BigNum & b, BigNum * remainder)
{
// this = a / b, remainder = a % b
// either this or remainder may be nil
BN_div(this ? &m_number : nil, remainder ? &remainder->m_number : nil,
&a.m_number, &b.m_number, GetContext());
}
void FromData_BE (unsigned bytess, const void * data)
{
BN_bin2bn((const unsigned char *)data, bytess, &m_number);
}
void FromData_LE (unsigned bytess, const void * data);
unsigned char * GetData_BE (unsigned * bytess) const;
unsigned char * GetData_LE (unsigned * bytess) const;
bool IsPrime () const
{
// Cyan's code uses 3 checks, so we'll follow suit.
// This provides an accurate answer to p < 0.015625
return BN_is_prime_fasttest(&m_number, 3, nil, GetContext(), nil, 1) > 0;
}
void Mod (const BigNum & a, const BigNum & b)
{
// this = a % b
BN_div(nil, &m_number, &a.m_number, &b.m_number, GetContext());
}
void Mul (const BigNum & a, uint32_t b)
{
// this = a * b
BN_copy(&m_number, &a.m_number);
BN_mul_word(&m_number, b);
}
void Mul (const BigNum & a, const BigNum & b)
{
// this = a * b
BN_mul(&m_number, &a.m_number, &b.m_number, GetContext());
}
void PowMod (uint32_t a, const BigNum & b, const BigNum & c)
{
// this = a ^ b % c
PowMod(BigNum(a), b, c);
}
void PowMod (const BigNum & a, const BigNum & b, const BigNum & c)
{
// this = a ^ b % c
BN_mod_exp(&m_number, &a.m_number, &b.m_number, &c.m_number, GetContext());
}
void Rand (const BigNum & a, BigNum * seed)
{
// this = random number less than a
int bits = BN_num_bits(&a.m_number);
do
Rand(bits, seed);
while (Compare(a) >= 0);
}
void Rand (unsigned bits, BigNum * seed);
void RandPrime (unsigned bits, BigNum * seed)
{
BN_generate_prime(&m_number, bits, 1, nil, nil, nil, nil);
}
void Set (const BigNum & a)
{
BN_copy(&m_number, &a.m_number);
}
void Set (unsigned a)
{
BN_set_word(&m_number, a);
}
void SetOne () { Set(1); }
void SetZero () { Set(0); }
void Shl (const BigNum & a, unsigned b)
{
// this = a << b
BN_lshift(&m_number, &a.m_number, b);
}
void Shr (const BigNum & a, unsigned b)
{
// this = a >> b
BN_rshift(&m_number, &a.m_number, b);
}
void Sub (const BigNum & a, uint32_t b)
{
// this = a - b
BN_copy(&m_number, &a.m_number);
BN_sub_word(&m_number, b);
}
void Sub (const BigNum & a, const BigNum & b)
{
// this = a - b
BN_sub(&m_number, &a.m_number, &b.m_number);
}
};
#endif