mirror of
https://github.com/DarkflameUniverse/DarkflameServer.git
synced 2024-11-25 23:17:28 +00:00
327 lines
6.6 KiB
C++
327 lines
6.6 KiB
C++
/**
|
|
* @brief SHA-1 Hash key computation
|
|
*
|
|
* 100% free public domain implementation of the SHA-1
|
|
* algorithm by Dominik Reichl <Dominik.Reichl@tiscali.de>
|
|
*
|
|
*
|
|
* === Test Vectors (from FIPS PUB 180-1) ===
|
|
*
|
|
* "abc"
|
|
* A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D
|
|
*
|
|
* "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"
|
|
* 84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1
|
|
*
|
|
* A million repetitions of "a"
|
|
* 34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F
|
|
*/
|
|
|
|
|
|
#include "SHA1.h"
|
|
#include <stdlib.h>
|
|
|
|
|
|
CSHA1::CSHA1()
|
|
{
|
|
Reset();
|
|
}
|
|
|
|
CSHA1::~CSHA1()
|
|
{
|
|
Reset();
|
|
}
|
|
|
|
|
|
void CSHA1::Reset()
|
|
{
|
|
// SHA1 initialization constants
|
|
m_state[ 0 ] = 0x67452301;
|
|
m_state[ 1 ] = 0xEFCDAB89;
|
|
m_state[ 2 ] = 0x98BADCFE;
|
|
m_state[ 3 ] = 0x10325476;
|
|
m_state[ 4 ] = 0xC3D2E1F0;
|
|
|
|
m_count[ 0 ] = 0;
|
|
m_count[ 1 ] = 0;
|
|
}
|
|
|
|
void CSHA1::Transform( unsigned int state[ 5 ], unsigned char buffer[ 64 ] )
|
|
{
|
|
unsigned int a = 0, b = 0, c = 0, d = 0, e = 0;
|
|
|
|
SHA1_WORKSPACE_BLOCK* block;
|
|
// static unsigned char workspace[64];
|
|
block = ( SHA1_WORKSPACE_BLOCK * ) workspace;
|
|
memcpy( block, buffer, 64 );
|
|
|
|
// Copy state[] to working vars
|
|
a = state[ 0 ];
|
|
b = state[ 1 ];
|
|
c = state[ 2 ];
|
|
d = state[ 3 ];
|
|
e = state[ 4 ];
|
|
|
|
// 4 rounds of 20 operations each. Loop unrolled.
|
|
R0( a, b, c, d, e, 0 );
|
|
R0( e, a, b, c, d, 1 );
|
|
R0( d, e, a, b, c, 2 );
|
|
R0( c, d, e, a, b, 3 );
|
|
R0( b, c, d, e, a, 4 );
|
|
R0( a, b, c, d, e, 5 );
|
|
R0( e, a, b, c, d, 6 );
|
|
R0( d, e, a, b, c, 7 );
|
|
R0( c, d, e, a, b, 8 );
|
|
R0( b, c, d, e, a, 9 );
|
|
R0( a, b, c, d, e, 10 );
|
|
R0( e, a, b, c, d, 11 );
|
|
R0( d, e, a, b, c, 12 );
|
|
R0( c, d, e, a, b, 13 );
|
|
R0( b, c, d, e, a, 14 );
|
|
R0( a, b, c, d, e, 15 );
|
|
R1( e, a, b, c, d, 16 );
|
|
R1( d, e, a, b, c, 17 );
|
|
R1( c, d, e, a, b, 18 );
|
|
R1( b, c, d, e, a, 19 );
|
|
R2( a, b, c, d, e, 20 );
|
|
R2( e, a, b, c, d, 21 );
|
|
R2( d, e, a, b, c, 22 );
|
|
R2( c, d, e, a, b, 23 );
|
|
R2( b, c, d, e, a, 24 );
|
|
R2( a, b, c, d, e, 25 );
|
|
R2( e, a, b, c, d, 26 );
|
|
R2( d, e, a, b, c, 27 );
|
|
R2( c, d, e, a, b, 28 );
|
|
R2( b, c, d, e, a, 29 );
|
|
R2( a, b, c, d, e, 30 );
|
|
R2( e, a, b, c, d, 31 );
|
|
R2( d, e, a, b, c, 32 );
|
|
R2( c, d, e, a, b, 33 );
|
|
R2( b, c, d, e, a, 34 );
|
|
R2( a, b, c, d, e, 35 );
|
|
R2( e, a, b, c, d, 36 );
|
|
R2( d, e, a, b, c, 37 );
|
|
R2( c, d, e, a, b, 38 );
|
|
R2( b, c, d, e, a, 39 );
|
|
R3( a, b, c, d, e, 40 );
|
|
R3( e, a, b, c, d, 41 );
|
|
R3( d, e, a, b, c, 42 );
|
|
R3( c, d, e, a, b, 43 );
|
|
R3( b, c, d, e, a, 44 );
|
|
R3( a, b, c, d, e, 45 );
|
|
R3( e, a, b, c, d, 46 );
|
|
R3( d, e, a, b, c, 47 );
|
|
R3( c, d, e, a, b, 48 );
|
|
R3( b, c, d, e, a, 49 );
|
|
R3( a, b, c, d, e, 50 );
|
|
R3( e, a, b, c, d, 51 );
|
|
R3( d, e, a, b, c, 52 );
|
|
R3( c, d, e, a, b, 53 );
|
|
R3( b, c, d, e, a, 54 );
|
|
R3( a, b, c, d, e, 55 );
|
|
R3( e, a, b, c, d, 56 );
|
|
R3( d, e, a, b, c, 57 );
|
|
R3( c, d, e, a, b, 58 );
|
|
R3( b, c, d, e, a, 59 );
|
|
R4( a, b, c, d, e, 60 );
|
|
R4( e, a, b, c, d, 61 );
|
|
R4( d, e, a, b, c, 62 );
|
|
R4( c, d, e, a, b, 63 );
|
|
R4( b, c, d, e, a, 64 );
|
|
R4( a, b, c, d, e, 65 );
|
|
R4( e, a, b, c, d, 66 );
|
|
R4( d, e, a, b, c, 67 );
|
|
R4( c, d, e, a, b, 68 );
|
|
R4( b, c, d, e, a, 69 );
|
|
R4( a, b, c, d, e, 70 );
|
|
R4( e, a, b, c, d, 71 );
|
|
R4( d, e, a, b, c, 72 );
|
|
R4( c, d, e, a, b, 73 );
|
|
R4( b, c, d, e, a, 74 );
|
|
R4( a, b, c, d, e, 75 );
|
|
R4( e, a, b, c, d, 76 );
|
|
R4( d, e, a, b, c, 77 );
|
|
R4( c, d, e, a, b, 78 );
|
|
R4( b, c, d, e, a, 79 );
|
|
|
|
// Add the working vars back into state[]
|
|
state[ 0 ] += a;
|
|
state[ 1 ] += b;
|
|
state[ 2 ] += c;
|
|
state[ 3 ] += d;
|
|
state[ 4 ] += e;
|
|
|
|
// Wipe variables
|
|
a = 0;
|
|
b = 0;
|
|
c = 0;
|
|
d = 0;
|
|
e = 0;
|
|
}
|
|
|
|
// Use this function to hash in binary data and strings
|
|
void CSHA1::Update( unsigned char* data, unsigned int len )
|
|
{
|
|
unsigned int i = 0, j = 0;
|
|
|
|
j = ( m_count[ 0 ] >> 3 ) & 63;
|
|
|
|
if ( ( m_count[ 0 ] += len << 3 ) < ( len << 3 ) )
|
|
m_count[ 1 ] ++;
|
|
|
|
m_count[ 1 ] += ( len >> 29 );
|
|
|
|
if ( ( j + len ) > 63 )
|
|
{
|
|
memcpy( &m_buffer[ j ], data, ( i = 64 - j ) );
|
|
Transform( m_state, m_buffer );
|
|
|
|
for ( ; i + 63 < len; i += 64 )
|
|
{
|
|
Transform( m_state, &data[ i ] );
|
|
}
|
|
|
|
j = 0;
|
|
}
|
|
|
|
else
|
|
i = 0;
|
|
|
|
memcpy( &m_buffer[ j ], &data[ i ], len - i );
|
|
}
|
|
|
|
// Hash in file contents
|
|
bool CSHA1::HashFile( char *szFileName )
|
|
{
|
|
unsigned long ulFileSize = 0, ulRest = 0, ulBlocks = 0;
|
|
unsigned long i = 0;
|
|
unsigned char uData[ MAX_FILE_READ_BUFFER ];
|
|
FILE *fIn = NULL;
|
|
|
|
if ( ( fIn = fopen( szFileName, "rb" ) ) == NULL )
|
|
return ( false );
|
|
|
|
fseek( fIn, 0, SEEK_END );
|
|
|
|
ulFileSize = ftell( fIn );
|
|
|
|
fseek( fIn, 0, SEEK_SET );
|
|
|
|
// This is faster
|
|
div_t temp;
|
|
|
|
temp = div( ulFileSize, MAX_FILE_READ_BUFFER );
|
|
|
|
ulRest = temp.rem;
|
|
|
|
ulBlocks = temp.quot;
|
|
|
|
// ulRest = ulFileSize % MAX_FILE_READ_BUFFER;
|
|
// ulBlocks = ulFileSize / MAX_FILE_READ_BUFFER;
|
|
|
|
for ( i = 0; i < ulBlocks; i++ )
|
|
{
|
|
fread( uData, 1, MAX_FILE_READ_BUFFER, fIn );
|
|
Update( uData, MAX_FILE_READ_BUFFER );
|
|
}
|
|
|
|
if ( ulRest != 0 )
|
|
{
|
|
fread( uData, 1, ulRest, fIn );
|
|
Update( uData, ulRest );
|
|
}
|
|
|
|
fclose( fIn );
|
|
fIn = NULL;
|
|
|
|
return ( true );
|
|
}
|
|
|
|
void CSHA1::Final()
|
|
{
|
|
unsigned int i = 0, j = 0;
|
|
unsigned char finalcount[ 8 ] =
|
|
{
|
|
0, 0, 0, 0, 0, 0, 0, 0
|
|
};
|
|
|
|
for ( i = 0; i < 8; i++ )
|
|
finalcount[ i ] = (unsigned char) ( ( m_count[ ( i >= 4 ? 0 : 1 ) ]
|
|
>> ( ( 3 - ( i & 3 ) ) * 8 ) ) & 255 ); // Endian independent
|
|
|
|
Update( ( unsigned char * ) "\200", 1 );
|
|
|
|
while ( ( m_count[ 0 ] & 504 ) != 448 )
|
|
Update( ( unsigned char * ) "\0", 1 );
|
|
|
|
Update( finalcount, 8 ); // Cause a SHA1Transform()
|
|
|
|
for ( i = 0; i < 20; i++ )
|
|
{
|
|
m_digest[ i ] = (unsigned char) ( ( m_state[ i >> 2 ] >> ( ( 3 - ( i & 3 ) ) * 8 ) ) & 255 );
|
|
}
|
|
|
|
// Wipe variables for security reasons
|
|
i = 0;
|
|
|
|
j = 0;
|
|
|
|
memset( m_buffer, 0, 64 );
|
|
|
|
memset( m_state, 0, 20 );
|
|
|
|
memset( m_count, 0, 8 );
|
|
|
|
memset( finalcount, 0, 8 );
|
|
|
|
Transform( m_state, m_buffer );
|
|
}
|
|
|
|
// Get the final hash as a pre-formatted string
|
|
void CSHA1::ReportHash( char *szReport, unsigned char uReportType )
|
|
{
|
|
unsigned char i = 0;
|
|
char szTemp[ 4 ];
|
|
|
|
if ( uReportType == REPORT_HEX )
|
|
{
|
|
sprintf( szTemp, "%02X", m_digest[ 0 ] );
|
|
strcat( szReport, szTemp );
|
|
|
|
for ( i = 1; i < 20; i++ )
|
|
{
|
|
sprintf( szTemp, " %02X", m_digest[ i ] );
|
|
strcat( szReport, szTemp );
|
|
}
|
|
}
|
|
|
|
else
|
|
if ( uReportType == REPORT_DIGIT )
|
|
{
|
|
sprintf( szTemp, "%u", m_digest[ 0 ] );
|
|
strcat( szReport, szTemp );
|
|
|
|
for ( i = 1; i < 20; i++ )
|
|
{
|
|
sprintf( szTemp, " %u", m_digest[ i ] );
|
|
strcat( szReport, szTemp );
|
|
}
|
|
}
|
|
|
|
else
|
|
strcpy( szReport, "Error: Unknown report type!" );
|
|
}
|
|
|
|
// Get the raw message digest
|
|
void CSHA1::GetHash( unsigned char *uDest )
|
|
{
|
|
memcpy( uDest, m_digest, 20 );
|
|
}
|
|
|
|
// Get the raw message digest
|
|
// Added by Kevin to be quicker
|
|
unsigned char * CSHA1::GetHash( void ) const
|
|
{
|
|
return ( unsigned char * ) m_digest;
|
|
}
|