mirror of
https://port.numenaute.org/aleajactaest/khanat-code-old.git
synced 2024-11-19 05:26:13 +00:00
566 lines
14 KiB
C++
566 lines
14 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
|
|
// Copyright (C) 2010 Winch Gate Property Limited
|
|
//
|
|
// 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 Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
//
|
|
// Includes
|
|
//
|
|
|
|
#include "stdmisc.h"
|
|
|
|
#include <cstdio>
|
|
#include <cstring>
|
|
#include <string>
|
|
#include <map>
|
|
#include <vector>
|
|
|
|
#include "nel/misc/sha1.h"
|
|
#include "nel/misc/file.h"
|
|
#include "nel/misc/path.h"
|
|
|
|
//
|
|
// Namespaces
|
|
//
|
|
|
|
using namespace std;
|
|
using namespace NLMISC;
|
|
|
|
//
|
|
// Types
|
|
//
|
|
|
|
/*
|
|
* If you do not have the ISO standard stdint.h header file, then you
|
|
* must typedef the following:
|
|
* name meaning
|
|
* uint32_t unsigned 32 bit integer
|
|
* uint8_t unsigned 8 bit integer (i.e., unsigned char)
|
|
* int_least16_t integer of >= 16 bits
|
|
*
|
|
*/
|
|
|
|
typedef unsigned int uint32_t;
|
|
typedef unsigned char uint8_t;
|
|
typedef short int_least16_t;
|
|
|
|
//
|
|
// Constantes
|
|
//
|
|
|
|
static const int bufferSize = 100000;
|
|
static uint8_t buffer[bufferSize];
|
|
|
|
enum
|
|
{
|
|
shaSuccess = 0,
|
|
shaNull, /* Null pointer parameter */
|
|
shaInputTooLong, /* input data too long */
|
|
shaStateError /* called Input after Result */
|
|
};
|
|
|
|
#define SHA1HashSize 20
|
|
|
|
/*
|
|
* This structure will hold context information for the SHA-1
|
|
* hashing operation
|
|
*/
|
|
typedef struct SHA1Context
|
|
{
|
|
uint32_t Intermediate_Hash[SHA1HashSize/4]; /* Message Digest */
|
|
|
|
uint32_t Length_Low; /* Message length in bits */
|
|
uint32_t Length_High; /* Message length in bits */
|
|
|
|
/* Index into message block array */
|
|
int_least16_t Message_Block_Index;
|
|
uint8_t Message_Block[64]; /* 512-bit message blocks */
|
|
|
|
int Computed; /* Is the digest computed? */
|
|
int Corrupted; /* Is the message digest corrupted? */
|
|
} SHA1Context;
|
|
|
|
|
|
// Because the code does some tricky stuff, VC>6 would cry at runtime
|
|
#ifdef _MFC_VER
|
|
#pragma runtime_checks( "", off )
|
|
#endif
|
|
|
|
|
|
//
|
|
// Function Prototypes
|
|
//
|
|
|
|
int SHA1Reset (SHA1Context *);
|
|
int SHA1Input (SHA1Context *, const uint8_t *, unsigned int);
|
|
int SHA1Result (SHA1Context *, uint8_t Message_Digest[SHA1HashSize]);
|
|
|
|
//
|
|
// Functions
|
|
//
|
|
|
|
CHashKey getSHA1(const uint8 *buffer, uint32 size)
|
|
{
|
|
SHA1Context sha;
|
|
int err;
|
|
uint8_t Message_Digest[20];
|
|
|
|
err = SHA1Reset(&sha);
|
|
if (err)
|
|
{
|
|
nlwarning("SHA: SHA1Reset Error %d.\n", err );
|
|
return CHashKey();
|
|
}
|
|
|
|
err = SHA1Input(&sha, (const uint8_t*)buffer, size);
|
|
if (err)
|
|
{
|
|
nlwarning ("SHA: SHA1Input Error %d.\n", err);
|
|
return CHashKey();
|
|
}
|
|
|
|
err = SHA1Result(&sha, Message_Digest);
|
|
if (err)
|
|
{
|
|
nlwarning("SHA: SHA1Result Error %d, could not compute message digest.\n", err );
|
|
return CHashKey();
|
|
}
|
|
|
|
CHashKey hk (Message_Digest);
|
|
return hk;
|
|
}
|
|
|
|
CHashKey getSHA1(const string &filename, bool forcePath)
|
|
{
|
|
SHA1Context sha;
|
|
int err;
|
|
uint8_t Message_Digest[20];
|
|
|
|
//printf("reading '%s'\n", findData.cFileName);
|
|
CIFile ifile;
|
|
ifile.setCacheFileOnOpen(true);
|
|
if (!ifile.open(forcePath ? filename:CPath::lookup(filename)))
|
|
{
|
|
nlwarning ("SHA: Can't open the file '%s'", filename.c_str());
|
|
return CHashKey();
|
|
}
|
|
|
|
//FILE *fp = fopen (filename.c_str(), "rb");
|
|
//if (fp == NULL) return CHashKey();
|
|
|
|
err = SHA1Reset(&sha);
|
|
if (err)
|
|
{
|
|
nlwarning("SHA: SHA1Reset Error %d.\n", err );
|
|
ifile.close ();
|
|
return CHashKey();
|
|
}
|
|
|
|
sint fs = ifile.getFileSize();
|
|
sint n, read = 0;
|
|
do
|
|
{
|
|
//bs = (int)fread (buffer, 1, bufferSize, fp);
|
|
n = std::min (bufferSize, fs-read);
|
|
//nlinfo ("read %d bytes", n);
|
|
ifile.serialBuffer((uint8 *)buffer, n);
|
|
|
|
err = SHA1Input(&sha, buffer, n);
|
|
if (err)
|
|
{
|
|
nlwarning ("SHA: SHA1Input Error %d.\n", err);
|
|
ifile.close();
|
|
return CHashKey();
|
|
}
|
|
read += n;
|
|
}
|
|
while (!ifile.eof());
|
|
|
|
ifile.close ();
|
|
|
|
err = SHA1Result(&sha, Message_Digest);
|
|
if (err)
|
|
{
|
|
nlwarning("SHA: SHA1Result Error %d, could not compute message digest.\n", err );
|
|
return CHashKey();
|
|
}
|
|
|
|
CHashKey hk (Message_Digest);
|
|
return hk;
|
|
}
|
|
|
|
#ifdef _MFC_VER
|
|
#pragma runtime_checks( "", off )
|
|
#endif
|
|
|
|
/*
|
|
* Define the SHA1 circular left shift macro
|
|
*/
|
|
#define SHA1CircularShift(bits,word) \
|
|
(((word) << (bits)) | ((word) >> (32-(bits))))
|
|
|
|
/* Local Function Prototypes */
|
|
void SHA1PadMessage(SHA1Context *);
|
|
void SHA1ProcessMessageBlock(SHA1Context *);
|
|
|
|
/*
|
|
* SHA1Reset
|
|
*
|
|
* Description:
|
|
* This function will initialize the SHA1Context in preparation
|
|
* for computing a new SHA1 message digest.
|
|
*
|
|
* Parameters:
|
|
* context: [in/out]
|
|
* The context to reset.
|
|
*
|
|
* Returns:
|
|
* sha Error Code.
|
|
*
|
|
*/
|
|
int SHA1Reset(SHA1Context *context)
|
|
{
|
|
if (!context)
|
|
{
|
|
return shaNull;
|
|
}
|
|
|
|
context->Length_Low = 0;
|
|
context->Length_High = 0;
|
|
context->Message_Block_Index = 0;
|
|
|
|
context->Intermediate_Hash[0] = 0x67452301;
|
|
context->Intermediate_Hash[1] = 0xEFCDAB89;
|
|
context->Intermediate_Hash[2] = 0x98BADCFE;
|
|
context->Intermediate_Hash[3] = 0x10325476;
|
|
context->Intermediate_Hash[4] = 0xC3D2E1F0;
|
|
|
|
context->Computed = 0;
|
|
context->Corrupted = 0;
|
|
|
|
return shaSuccess;
|
|
}
|
|
|
|
/*
|
|
* SHA1Result
|
|
*
|
|
* Description:
|
|
* This function will return the 160-bit message digest into the
|
|
* Message_Digest array provided by the caller.
|
|
* NOTE: The first octet of hash is stored in the 0th element,
|
|
* the last octet of hash in the 19th element.
|
|
*
|
|
* Parameters:
|
|
* context: [in/out]
|
|
* The context to use to calculate the SHA-1 hash.
|
|
* Message_Digest: [out]
|
|
* Where the digest is returned.
|
|
*
|
|
* Returns:
|
|
* sha Error Code.
|
|
*
|
|
*/
|
|
int SHA1Result( SHA1Context *context,
|
|
uint8_t Message_Digest[SHA1HashSize])
|
|
{
|
|
int i;
|
|
|
|
if (!context || !Message_Digest)
|
|
{
|
|
return shaNull;
|
|
}
|
|
|
|
if (context->Corrupted)
|
|
{
|
|
return context->Corrupted;
|
|
}
|
|
|
|
if (!context->Computed)
|
|
{
|
|
SHA1PadMessage(context);
|
|
for(i=0; i<64; ++i)
|
|
{
|
|
/* message may be sensitive, clear it out */
|
|
context->Message_Block[i] = 0;
|
|
}
|
|
context->Length_Low = 0; /* and clear length */
|
|
context->Length_High = 0;
|
|
context->Computed = 1;
|
|
|
|
}
|
|
|
|
for(i = 0; i < SHA1HashSize; ++i)
|
|
{
|
|
Message_Digest[i] = uint8_t((context->Intermediate_Hash[i>>2]
|
|
>> 8 * ( 3 - ( i & 0x03 ) ) ) & 0xff );
|
|
}
|
|
|
|
return shaSuccess;
|
|
}
|
|
|
|
/*
|
|
* SHA1Input
|
|
*
|
|
* Description:
|
|
* This function accepts an array of octets as the next portion
|
|
* of the message.
|
|
*
|
|
* Parameters:
|
|
* context: [in/out]
|
|
* The SHA context to update
|
|
* message_array: [in]
|
|
* An array of characters representing the next portion of
|
|
* the message.
|
|
* length: [in]
|
|
* The length of the message in message_array
|
|
*
|
|
* Returns:
|
|
* sha Error Code.
|
|
*
|
|
*/
|
|
int SHA1Input( SHA1Context *context,
|
|
const uint8_t *message_array,
|
|
unsigned length)
|
|
{
|
|
if (!length)
|
|
{
|
|
return shaSuccess;
|
|
}
|
|
|
|
if (!context || !message_array)
|
|
{
|
|
return shaNull;
|
|
}
|
|
|
|
if (context->Computed)
|
|
{
|
|
context->Corrupted = shaStateError;
|
|
|
|
return shaStateError;
|
|
}
|
|
|
|
if (context->Corrupted)
|
|
{
|
|
return context->Corrupted;
|
|
}
|
|
while(length-- && !context->Corrupted)
|
|
{
|
|
context->Message_Block[context->Message_Block_Index++] =
|
|
(*message_array & 0xFF);
|
|
|
|
context->Length_Low += 8;
|
|
if (context->Length_Low == 0)
|
|
{
|
|
context->Length_High++;
|
|
if (context->Length_High == 0)
|
|
{
|
|
/* Message is too long */
|
|
context->Corrupted = 1;
|
|
}
|
|
}
|
|
|
|
if (context->Message_Block_Index == 64)
|
|
{
|
|
SHA1ProcessMessageBlock(context);
|
|
}
|
|
|
|
message_array++;
|
|
}
|
|
|
|
return shaSuccess;
|
|
}
|
|
|
|
/*
|
|
* SHA1ProcessMessageBlock
|
|
*
|
|
* Description:
|
|
* This function will process the next 512 bits of the message
|
|
* stored in the Message_Block array.
|
|
*
|
|
* Parameters:
|
|
* None.
|
|
*
|
|
* Returns:
|
|
* Nothing.
|
|
*
|
|
* Comments:
|
|
|
|
* Many of the variable names in this code, especially the
|
|
* single character names, were used because those were the
|
|
* names used in the publication.
|
|
*
|
|
*
|
|
*/
|
|
void SHA1ProcessMessageBlock(SHA1Context *context)
|
|
{
|
|
const uint32_t K[] = { /* Constants defined in SHA-1 */
|
|
0x5A827999,
|
|
0x6ED9EBA1,
|
|
0x8F1BBCDC,
|
|
0xCA62C1D6
|
|
};
|
|
int t; /* Loop counter */
|
|
uint32_t temp; /* Temporary word value */
|
|
uint32_t W[80]; /* Word sequence */
|
|
uint32_t A, B, C, D, E; /* Word buffers */
|
|
|
|
/*
|
|
* Initialize the first 16 words in the array W
|
|
*/
|
|
for(t = 0; t < 16; t++)
|
|
{
|
|
W[t] = context->Message_Block[t * 4] << 24;
|
|
W[t] |= context->Message_Block[t * 4 + 1] << 16;
|
|
W[t] |= context->Message_Block[t * 4 + 2] << 8;
|
|
W[t] |= context->Message_Block[t * 4 + 3];
|
|
}
|
|
|
|
for(t = 16; t < 80; t++)
|
|
{
|
|
W[t] = SHA1CircularShift(1,W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16]);
|
|
}
|
|
|
|
A = context->Intermediate_Hash[0];
|
|
B = context->Intermediate_Hash[1];
|
|
C = context->Intermediate_Hash[2];
|
|
D = context->Intermediate_Hash[3];
|
|
E = context->Intermediate_Hash[4];
|
|
|
|
for(t = 0; t < 20; t++)
|
|
{
|
|
temp = SHA1CircularShift(5,A) +
|
|
((B & C) | ((~B) & D)) + E + W[t] + K[0];
|
|
E = D;
|
|
D = C;
|
|
C = SHA1CircularShift(30,B);
|
|
|
|
B = A;
|
|
A = temp;
|
|
}
|
|
|
|
for(t = 20; t < 40; t++)
|
|
{
|
|
temp = SHA1CircularShift(5,A) + (B ^ C ^ D) + E + W[t] + K[1];
|
|
E = D;
|
|
D = C;
|
|
C = SHA1CircularShift(30,B);
|
|
B = A;
|
|
A = temp;
|
|
}
|
|
|
|
for(t = 40; t < 60; t++)
|
|
{
|
|
temp = SHA1CircularShift(5,A) +
|
|
((B & C) | (B & D) | (C & D)) + E + W[t] + K[2];
|
|
E = D;
|
|
D = C;
|
|
C = SHA1CircularShift(30,B);
|
|
B = A;
|
|
A = temp;
|
|
}
|
|
|
|
for(t = 60; t < 80; t++)
|
|
{
|
|
temp = SHA1CircularShift(5,A) + (B ^ C ^ D) + E + W[t] + K[3];
|
|
E = D;
|
|
D = C;
|
|
C = SHA1CircularShift(30,B);
|
|
B = A;
|
|
A = temp;
|
|
}
|
|
|
|
context->Intermediate_Hash[0] += A;
|
|
context->Intermediate_Hash[1] += B;
|
|
context->Intermediate_Hash[2] += C;
|
|
context->Intermediate_Hash[3] += D;
|
|
context->Intermediate_Hash[4] += E;
|
|
|
|
context->Message_Block_Index = 0;
|
|
}
|
|
|
|
/*
|
|
* SHA1PadMessage
|
|
*
|
|
|
|
* Description:
|
|
* According to the standard, the message must be padded to an even
|
|
* 512 bits. The first padding bit must be a '1'. The last 64
|
|
* bits represent the length of the original message. All bits in
|
|
* between should be 0. This function will pad the message
|
|
* according to those rules by filling the Message_Block array
|
|
* accordingly. It will also call the ProcessMessageBlock function
|
|
* provided appropriately. When it returns, it can be assumed that
|
|
* the message digest has been computed.
|
|
*
|
|
* Parameters:
|
|
* context: [in/out]
|
|
* The context to pad
|
|
* ProcessMessageBlock: [in]
|
|
* The appropriate SHA*ProcessMessageBlock function
|
|
* Returns:
|
|
* Nothing.
|
|
*
|
|
*/
|
|
|
|
void SHA1PadMessage(SHA1Context *context)
|
|
{
|
|
/*
|
|
* Check to see if the current message block is too small to hold
|
|
* the initial padding bits and length. If so, we will pad the
|
|
* block, process it, and then continue padding into a second
|
|
* block.
|
|
*/
|
|
if (context->Message_Block_Index > 55)
|
|
{
|
|
context->Message_Block[context->Message_Block_Index++] = 0x80;
|
|
while(context->Message_Block_Index < 64)
|
|
{
|
|
context->Message_Block[context->Message_Block_Index++] = 0;
|
|
}
|
|
|
|
SHA1ProcessMessageBlock(context);
|
|
|
|
while(context->Message_Block_Index < 56)
|
|
{
|
|
context->Message_Block[context->Message_Block_Index++] = 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
context->Message_Block[context->Message_Block_Index++] = 0x80;
|
|
while(context->Message_Block_Index < 56)
|
|
{
|
|
|
|
context->Message_Block[context->Message_Block_Index++] = 0;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Store the message length as the last 8 octets
|
|
*/
|
|
context->Message_Block[56] = uint8_t((context->Length_High >> 24)&0xff);
|
|
context->Message_Block[57] = uint8_t((context->Length_High >> 16)&0xff);
|
|
context->Message_Block[58] = uint8_t((context->Length_High >> 8)&0xff);
|
|
context->Message_Block[59] = uint8_t((context->Length_High)&0xff);
|
|
context->Message_Block[60] = uint8_t((context->Length_Low >> 24)&0xff);
|
|
context->Message_Block[61] = uint8_t((context->Length_Low >> 16)&0xff);
|
|
context->Message_Block[62] = uint8_t((context->Length_Low >> 8)&0xff);
|
|
context->Message_Block[63] = uint8_t((context->Length_Low)&0xff);
|
|
|
|
SHA1ProcessMessageBlock(context);
|
|
}
|
|
|
|
#ifdef _MFC_VER
|
|
#pragma runtime_checks( "", restore )
|
|
#endif
|