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Change all CRLF-text files to LF-text files
to match H'uru for patching
This commit is contained in:
@ -1,151 +1,151 @@
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/*==LICENSE==*
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CyanWorlds.com Engine - MMOG client, server and tools
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Copyright (C) 2011 Cyan Worlds, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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Additional permissions under GNU GPL version 3 section 7
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If you modify this Program, or any covered work, by linking or
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combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
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NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
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JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
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(or a modified version of those libraries),
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containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
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PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
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JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
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licensors of this Program grant you additional
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permission to convey the resulting work. Corresponding Source for a
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non-source form of such a combination shall include the source code for
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the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
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work.
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You can contact Cyan Worlds, Inc. by email legal@cyan.com
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or by snail mail at:
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Cyan Worlds, Inc.
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14617 N Newport Hwy
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Mead, WA 99021
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*==LICENSE==*/
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/*****************************************************************************
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*
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* $/Plasma20/Sources/Plasma/NucleusLib/pnNetCli/pnNcEncrypt.cpp
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*
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***/
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#include "Pch.h"
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#pragma hdrstop
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namespace pnNetCli {
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/****************************************************************************
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*
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* Diffie-Hellman constants
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*
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// g and n are pregenerated and published
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// (built into both client and server software)
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BigNum g(4);
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BigNum n; n.RandPrime(kKeyBits, &seed);
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// a and x are pregenerated; a is built into server software, and x is
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// built into client software
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BigNum a; a.Rand(kKeyBits, &seed);
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BigNum x; x.PowMod(g, a, n);
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// client chooses b and y on connect, and sends y to the server
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BigNum b; b.Rand(kKeyBits, &seed);
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BigNum y; y.PowMod(g, b, n);
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// server computes key: k = y^a mod n
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BigNum ka; ka.PowMod(y, a, n);
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// client computes key: k = x^b mod n
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BigNum kb; kb.PowMod(x, b, n);
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***/
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COMPILER_ASSERT(IS_POW2(kNetDiffieHellmanKeyBits));
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/*****************************************************************************
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*
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* Private
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*
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***/
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//============================================================================
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// TODO: Cache computed keys
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static void GetCachedServerKey (
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NetMsgChannel * channel,
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BigNum * ka,
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const BigNum & dh_y
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) {
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// Get diffie-hellman constants
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unsigned DH_G;
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const BigNum * DH_A;
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const BigNum * DH_N;
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NetMsgChannelGetDhConstants(channel, &DH_G, &DH_A, &DH_N);
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// Compute the result
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ka->PowMod(dh_y, *DH_A, *DH_N);
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}
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/*****************************************************************************
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*
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* Module functions
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*
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***/
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//============================================================================
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void NetMsgCryptClientStart (
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NetMsgChannel * channel,
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unsigned seedBytes,
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const byte seedData[],
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BigNum * clientSeed,
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BigNum * serverSeed
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) {
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unsigned DH_G;
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const BigNum * DH_X;
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const BigNum * DH_N;
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NetMsgChannelGetDhConstants(channel, &DH_G, &DH_X, &DH_N);
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// Client chooses b and y on connect
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BigNum g(DH_G);
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BigNum seed(seedBytes, seedData);
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BigNum b; b.Rand(kNetDiffieHellmanKeyBits, &seed);
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// Client computes key: kb = x^b mod n
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clientSeed->PowMod(*DH_X, b, *DH_N);
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// Client sends y to server
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serverSeed->PowMod(g, b, *DH_N);
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}
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//============================================================================
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void NetMsgCryptServerConnect (
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NetMsgChannel * channel,
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unsigned seedBytes,
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const byte seedData[],
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BigNum * clientSeed
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) {
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// Server computes client key: ka = y^a mod n
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const BigNum dh_y(seedBytes, seedData);
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GetCachedServerKey(channel, clientSeed, dh_y);
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}
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} // namespace pnNetCli
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/*==LICENSE==*
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CyanWorlds.com Engine - MMOG client, server and tools
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Copyright (C) 2011 Cyan Worlds, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
|
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(at your option) any later version.
|
||||
|
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This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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GNU General Public License for more details.
|
||||
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You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
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Additional permissions under GNU GPL version 3 section 7
|
||||
|
||||
If you modify this Program, or any covered work, by linking or
|
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combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
|
||||
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
|
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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
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licensors of this Program grant you additional
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||||
permission to convey the resulting work. Corresponding Source for a
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||||
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
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work.
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|
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You can contact Cyan Worlds, Inc. by email legal@cyan.com
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||||
or by snail mail at:
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Cyan Worlds, Inc.
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14617 N Newport Hwy
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Mead, WA 99021
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*==LICENSE==*/
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/*****************************************************************************
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*
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* $/Plasma20/Sources/Plasma/NucleusLib/pnNetCli/pnNcEncrypt.cpp
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*
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***/
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#include "Pch.h"
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#pragma hdrstop
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namespace pnNetCli {
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/****************************************************************************
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*
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* Diffie-Hellman constants
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*
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// g and n are pregenerated and published
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// (built into both client and server software)
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BigNum g(4);
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BigNum n; n.RandPrime(kKeyBits, &seed);
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// a and x are pregenerated; a is built into server software, and x is
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// built into client software
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BigNum a; a.Rand(kKeyBits, &seed);
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BigNum x; x.PowMod(g, a, n);
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// client chooses b and y on connect, and sends y to the server
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BigNum b; b.Rand(kKeyBits, &seed);
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BigNum y; y.PowMod(g, b, n);
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// server computes key: k = y^a mod n
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BigNum ka; ka.PowMod(y, a, n);
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// client computes key: k = x^b mod n
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BigNum kb; kb.PowMod(x, b, n);
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***/
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COMPILER_ASSERT(IS_POW2(kNetDiffieHellmanKeyBits));
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/*****************************************************************************
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*
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* Private
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*
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***/
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//============================================================================
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// TODO: Cache computed keys
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static void GetCachedServerKey (
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NetMsgChannel * channel,
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BigNum * ka,
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const BigNum & dh_y
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) {
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// Get diffie-hellman constants
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unsigned DH_G;
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const BigNum * DH_A;
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const BigNum * DH_N;
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NetMsgChannelGetDhConstants(channel, &DH_G, &DH_A, &DH_N);
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// Compute the result
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ka->PowMod(dh_y, *DH_A, *DH_N);
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}
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/*****************************************************************************
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*
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* Module functions
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*
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***/
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//============================================================================
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void NetMsgCryptClientStart (
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NetMsgChannel * channel,
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unsigned seedBytes,
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const byte seedData[],
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BigNum * clientSeed,
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BigNum * serverSeed
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) {
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unsigned DH_G;
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const BigNum * DH_X;
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const BigNum * DH_N;
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NetMsgChannelGetDhConstants(channel, &DH_G, &DH_X, &DH_N);
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// Client chooses b and y on connect
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BigNum g(DH_G);
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BigNum seed(seedBytes, seedData);
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BigNum b; b.Rand(kNetDiffieHellmanKeyBits, &seed);
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// Client computes key: kb = x^b mod n
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clientSeed->PowMod(*DH_X, b, *DH_N);
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// Client sends y to server
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serverSeed->PowMod(g, b, *DH_N);
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}
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//============================================================================
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void NetMsgCryptServerConnect (
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NetMsgChannel * channel,
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unsigned seedBytes,
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const byte seedData[],
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BigNum * clientSeed
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) {
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// Server computes client key: ka = y^a mod n
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const BigNum dh_y(seedBytes, seedData);
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GetCachedServerKey(channel, clientSeed, dh_y);
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}
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} // namespace pnNetCli
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