You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
117 lines
3.8 KiB
117 lines
3.8 KiB
/*==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==*/ |
|
|
|
#include "plChallengeHash.h" |
|
|
|
#include <algorithm> |
|
|
|
ShaDigest fSeed; |
|
|
|
void CryptCreateRandomSeed(size_t length, uint8_t* data) |
|
{ |
|
uint32_t seedIdx = 0; |
|
uint32_t dataIdx = 0; |
|
size_t cur = 0; |
|
size_t end = std::max(length, sizeof(ShaDigest)); |
|
|
|
// Combine seed with input data |
|
for (; cur < end; cur++) { |
|
fSeed[seedIdx] ^= data[dataIdx]; |
|
|
|
if (++seedIdx >= sizeof(ShaDigest)) |
|
seedIdx = 0; |
|
if (++dataIdx >= length) |
|
dataIdx = 0; |
|
} |
|
|
|
((uint32_t*)fSeed)[2] ^= (uint32_t)((uintptr_t)&length); |
|
((uint32_t*)fSeed)[3] ^= (uint32_t)length; |
|
((uint32_t*)fSeed)[4] ^= (uint32_t)((uintptr_t)data); |
|
|
|
// Hash seed |
|
plSHAChecksum sum(sizeof(ShaDigest), (uint8_t*)fSeed); |
|
ShaDigest digest; |
|
memcpy(digest, sum.GetValue(), sizeof(ShaDigest)); |
|
|
|
seedIdx = 0; |
|
dataIdx = 0; |
|
cur = 0; |
|
|
|
// Update output with contents of digest |
|
for (; cur < end; cur++) { |
|
data[dataIdx] ^= digest[seedIdx]; |
|
|
|
if (++seedIdx >= sizeof(ShaDigest)) |
|
seedIdx = 0; |
|
if (++dataIdx >= length) |
|
dataIdx = 0; |
|
} |
|
|
|
// Combine seed with digest |
|
for (size_t i = 0; i < sizeof(ShaDigest); i++) { |
|
fSeed[i] ^= digest[i]; |
|
} |
|
} |
|
|
|
void CryptHashPassword(const plString& username, const plString& password, ShaDigest dest) |
|
{ |
|
plStringStream buf; |
|
buf << password.Left(password.GetSize() - 1) << '\0'; |
|
buf << username.ToLower().Left(username.GetSize() - 1) << '\0'; |
|
plStringBuffer<uint16_t> result = buf.GetString().ToUtf16(); |
|
plSHAChecksum sum(result.GetSize() * sizeof(uint16_t), (uint8_t*)result.GetData()); |
|
|
|
memcpy(dest, sum.GetValue(), sizeof(ShaDigest)); |
|
} |
|
|
|
void CryptHashPasswordChallenge(uint32_t clientChallenge, uint32_t serverChallenge, ShaDigest namePassHash, ShaDigest challengeHash) |
|
{ |
|
plSHAChecksum sum; |
|
|
|
sum.Start(); |
|
sum.AddTo(sizeof(uint32_t), (uint8_t*)&clientChallenge); |
|
sum.AddTo(sizeof(uint32_t), (uint8_t*)&serverChallenge); |
|
sum.AddTo(sizeof(ShaDigest), namePassHash); |
|
sum.Finish(); |
|
|
|
memcpy(challengeHash, sum.GetValue(), sizeof(ShaDigest)); |
|
}
|
|
|