aboutsummaryrefslogtreecommitdiffstats
path: root/mp4ff/drms.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--mp4ff/drms.c1043
1 files changed, 0 insertions, 1043 deletions
diff --git a/mp4ff/drms.c b/mp4ff/drms.c
deleted file mode 100644
index 368b88110..000000000
--- a/mp4ff/drms.c
+++ /dev/null
@@ -1,1043 +0,0 @@
-/*****************************************************************************
- * drms.c : DRMS
- *****************************************************************************
- * Copyright (C) 2004 VideoLAN
- * $Id: drms.c,v 1.3 2004/01/11 15:52:18 menno Exp $
- *
- * Author: Jon Lech Johansen <jon-vl@nanocrew.net>
- *
- * 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 2 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, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
-
-#include <stdlib.h> /* malloc(), free() */
-
-#include "mp4ffint.h"
-
-#ifdef ITUNES_DRM
-
-#ifdef _WIN32
-#include <tchar.h>
-#include <shlobj.h>
-#include <windows.h>
-#endif
-
-#include "drms.h"
-#include "drmstables.h"
-
-static __inline uint32_t U32_AT( void * _p )
-{
- uint8_t * p = (uint8_t *)_p;
- return ( ((uint32_t)p[0] << 24) | ((uint32_t)p[1] << 16)
- | ((uint32_t)p[2] << 8) | p[3] );
-}
-
-#define TAOS_INIT( tmp, i ) \
- memset( tmp, 0, sizeof(tmp) ); \
- tmp[ i + 0 ] = 0x67452301; \
- tmp[ i + 1 ] = 0xEFCDAB89; \
- tmp[ i + 2 ] = 0x98BADCFE; \
- tmp[ i + 3 ] = 0x10325476;
-
-#define ROR( x, n ) (((x) << (32-(n))) | ((x) >> (n)))
-
-static void init_ctx( uint32_t *p_ctx, uint32_t *p_input )
-{
- uint32_t i;
- uint32_t p_tmp[ 6 ];
-
- p_ctx[ 0 ] = sizeof(*p_input);
-
- memset( &p_ctx[ 1 + 4 ], 0, sizeof(*p_input) * 4 );
- memcpy( &p_ctx[ 1 + 0 ], p_input, sizeof(*p_input) * 4 );
-
- p_tmp[ 0 ] = p_ctx[ 1 + 3 ];
-
- for( i = 0; i < sizeof(p_drms_tab1)/sizeof(p_drms_tab1[ 0 ]); i++ )
- {
- p_tmp[ 0 ] = ROR( p_tmp[ 0 ], 8 );
-
- p_tmp[ 5 ] = p_drms_tab2[ (p_tmp[ 0 ] >> 24) & 0xFF ]
- ^ ROR( p_drms_tab2[ (p_tmp[ 0 ] >> 16) & 0xFF ], 8 )
- ^ ROR( p_drms_tab2[ (p_tmp[ 0 ] >> 8) & 0xFF ], 16 )
- ^ ROR( p_drms_tab2[ p_tmp[ 0 ] & 0xFF ], 24 )
- ^ p_drms_tab1[ i ]
- ^ p_ctx[ 1 + ((i + 1) * 4) - 4 ];
-
- p_ctx[ 1 + ((i + 1) * 4) + 0 ] = p_tmp[ 5 ];
- p_tmp[ 5 ] ^= p_ctx[ 1 + ((i + 1) * 4) - 3 ];
- p_ctx[ 1 + ((i + 1) * 4) + 1 ] = p_tmp[ 5 ];
- p_tmp[ 5 ] ^= p_ctx[ 1 + ((i + 1) * 4) - 2 ];
- p_ctx[ 1 + ((i + 1) * 4) + 2 ] = p_tmp[ 5 ];
- p_tmp[ 5 ] ^= p_ctx[ 1 + ((i + 1) * 4) - 1 ];
- p_ctx[ 1 + ((i + 1) * 4) + 3 ] = p_tmp[ 5 ];
-
- p_tmp[ 0 ] = p_tmp[ 5 ];
- }
-
- memcpy( &p_ctx[ 1 + 64 ], &p_ctx[ 1 ], sizeof(*p_ctx) * 4 );
-
- for( i = 4; i < sizeof(p_drms_tab1); i++ )
- {
- p_tmp[ 2 ] = p_ctx[ 1 + 4 + (i - 4) ];
-
- p_tmp[ 0 ] = (((p_tmp[ 2 ] >> 7) & 0x01010101) * 27)
- ^ ((p_tmp[ 2 ] & 0xFF7F7F7F) << 1);
- p_tmp[ 1 ] = (((p_tmp[ 0 ] >> 7) & 0x01010101) * 27)
- ^ ((p_tmp[ 0 ] & 0xFF7F7F7F) << 1);
- p_tmp[ 4 ] = (((p_tmp[ 1 ] >> 7) & 0x01010101) * 27)
- ^ ((p_tmp[ 1 ] & 0xFF7F7F7F) << 1);
-
- p_tmp[ 2 ] ^= p_tmp[ 4 ];
-
- p_tmp[ 3 ] = ROR( p_tmp[ 1 ] ^ p_tmp[ 2 ], 16 )
- ^ ROR( p_tmp[ 0 ] ^ p_tmp[ 2 ], 8 )
- ^ ROR( p_tmp[ 2 ], 24 );
-
- p_ctx[ 1 + 4 + 64 + (i - 4) ] = p_tmp[ 3 ] ^ p_tmp[ 4 ]
- ^ p_tmp[ 1 ] ^ p_tmp[ 0 ];
- }
-}
-
-static void ctx_xor( uint32_t *p_ctx, uint32_t *p_in, uint32_t *p_out,
- uint32_t p_table1[ 256 ], uint32_t p_table2[ 256 ] )
-{
- uint32_t i, x, y;
- uint32_t p_tmp1[ 4 ];
- uint32_t p_tmp2[ 4 ];
-
- i = p_ctx[ 0 ] * 4;
-
- p_tmp1[ 0 ] = p_ctx[ 1 + i + 24 ] ^ p_in[ 0 ];
- p_tmp1[ 1 ] = p_ctx[ 1 + i + 25 ] ^ p_in[ 1 ];
- p_tmp1[ 2 ] = p_ctx[ 1 + i + 26 ] ^ p_in[ 2 ];
- p_tmp1[ 3 ] = p_ctx[ 1 + i + 27 ] ^ p_in[ 3 ];
-
- i += 84;
-
-#define XOR_ROR( p_table, p_tmp, i_ctx ) \
- p_table[ (p_tmp[ y > 2 ? y - 3 : y + 1 ] >> 24) & 0xFF ] \
- ^ ROR( p_table[ (p_tmp[ y > 1 ? y - 2 : y + 2 ] >> 16) & 0xFF ], 8 ) \
- ^ ROR( p_table[ (p_tmp[ y > 0 ? y - 1 : y + 3 ] >> 8) & 0xFF ], 16 ) \
- ^ ROR( p_table[ p_tmp[ y ] & 0xFF ], 24 ) \
- ^ p_ctx[ i_ctx ]
-
- for( x = 0; x < 1; x++ )
- {
- memcpy( p_tmp2, p_tmp1, sizeof(p_tmp1) );
-
- for( y = 0; y < 4; y++ )
- {
- p_tmp1[ y ] = XOR_ROR( p_table1, p_tmp2, 1 + i - x + y );
- }
- }
-
- for( ; x < 9; x++ )
- {
- memcpy( p_tmp2, p_tmp1, sizeof(p_tmp1) );
-
- for( y = 0; y < 4; y++ )
- {
- p_tmp1[ y ] = XOR_ROR( p_table1, p_tmp2,
- 1 + i - x - ((x * 3) - y) );
- }
- }
-
- for( y = 0; y < 4; y++ )
- {
- p_out[ y ] = XOR_ROR( p_table2, p_tmp1,
- 1 + i - x - ((x * 3) - y) );
- }
-
-#undef XOR_ROR
-}
-
-static void taos( uint32_t *p_buffer, uint32_t *p_input )
-{
- uint32_t i;
- uint32_t x = 0;
- uint32_t p_tmp1[ 4 ];
- uint32_t p_tmp2[ 4 ];
-
- memcpy( p_tmp1, p_buffer, sizeof(p_tmp1) );
-
- p_tmp2[ 0 ] = ((~p_tmp1[ 1 ] & p_tmp1[ 3 ])
- | (p_tmp1[ 2 ] & p_tmp1[ 1 ])) + p_input[ x ];
- p_tmp1[ 0 ] = p_tmp2[ 0 ] + p_tmp1[ 0 ] + p_drms_tab_taos[ x++ ];
-
- for( i = 0; i < 4; i++ )
- {
- p_tmp2[ 0 ] = ((p_tmp1[ 0 ] >> 0x19)
- | (p_tmp1[ 0 ] << 0x7)) + p_tmp1[ 1 ];
- p_tmp2[ 1 ] = ((~p_tmp2[ 0 ] & p_tmp1[ 2 ])
- | (p_tmp1[ 1 ] & p_tmp2[ 0 ])) + p_input[ x ];
- p_tmp2[ 1 ] += p_tmp1[ 3 ] + p_drms_tab_taos[ x++ ];
-
- p_tmp1[ 3 ] = ((p_tmp2[ 1 ] >> 0x14)
- | (p_tmp2[ 1 ] << 0xC)) + p_tmp2[ 0 ];
- p_tmp2[ 1 ] = ((~p_tmp1[ 3 ] & p_tmp1[ 1 ])
- | (p_tmp1[ 3 ] & p_tmp2[ 0 ])) + p_input[ x ];
- p_tmp2[ 1 ] += p_tmp1[ 2 ] + p_drms_tab_taos[ x++ ];
-
- p_tmp1[ 2 ] = ((p_tmp2[ 1 ] >> 0xF)
- | (p_tmp2[ 1 ] << 0x11)) + p_tmp1[ 3 ];
- p_tmp2[ 1 ] = ((~p_tmp1[ 2 ] & p_tmp2[ 0 ])
- | (p_tmp1[ 3 ] & p_tmp1[ 2 ])) + p_input[ x ];
- p_tmp2[ 2 ] = p_tmp2[ 1 ] + p_tmp1[ 1 ] + p_drms_tab_taos[ x++ ];
-
- p_tmp1[ 1 ] = ((p_tmp2[ 2 ] << 0x16)
- | (p_tmp2[ 2 ] >> 0xA)) + p_tmp1[ 2 ];
- if( i == 3 )
- {
- p_tmp2[ 1 ] = ((~p_tmp1[ 3 ] & p_tmp1[ 2 ])
- | (p_tmp1[ 3 ] & p_tmp1[ 1 ])) + p_input[ 1 ];
- }
- else
- {
- p_tmp2[ 1 ] = ((~p_tmp1[ 1 ] & p_tmp1[ 3 ])
- | (p_tmp1[ 2 ] & p_tmp1[ 1 ])) + p_input[ x ];
- }
- p_tmp1[ 0 ] = p_tmp2[ 0 ] + p_tmp2[ 1 ] + p_drms_tab_taos[ x++ ];
- }
-
- for( i = 0; i < 4; i++ )
- {
- uint8_t p_table[ 4 ][ 4 ] =
- {
- { 6, 11, 0, 5 },
- { 10, 15, 4, 9 },
- { 14, 3, 8, 13 },
- { 2, 7, 12, 5 }
- };
-
- p_tmp2[ 0 ] = ((p_tmp1[ 0 ] >> 0x1B)
- | (p_tmp1[ 0 ] << 0x5)) + p_tmp1[ 1 ];
- p_tmp2[ 1 ] = ((~p_tmp1[ 2 ] & p_tmp1[ 1 ])
- | (p_tmp1[ 2 ] & p_tmp2[ 0 ]))
- + p_input[ p_table[ i ][ 0 ] ];
- p_tmp2[ 1 ] += p_tmp1[ 3 ] + p_drms_tab_taos[ x++ ];
-
- p_tmp1[ 3 ] = ((p_tmp2[ 1 ] >> 0x17)
- | (p_tmp2[ 1 ] << 0x9)) + p_tmp2[ 0 ];
- p_tmp2[ 1 ] = ((~p_tmp1[ 1 ] & p_tmp2[ 0 ])
- | (p_tmp1[ 3 ] & p_tmp1[ 1 ]))
- + p_input[ p_table[ i ][ 1 ] ];
- p_tmp2[ 1 ] += p_tmp1[ 2 ] + p_drms_tab_taos[ x++ ];
-
- p_tmp1[ 2 ] = ((p_tmp2[ 1 ] >> 0x12)
- | (p_tmp2[ 1 ] << 0xE)) + p_tmp1[ 3 ];
- p_tmp2[ 1 ] = ((~p_tmp2[ 0 ] & p_tmp1[ 3 ])
- | (p_tmp1[ 2 ] & p_tmp2[ 0 ]))
- + p_input[ p_table[ i ][ 2 ] ];
- p_tmp2[ 1 ] += p_tmp1[ 1 ] + p_drms_tab_taos[ x++ ];
-
- p_tmp1[ 1 ] = ((p_tmp2[ 1 ] << 0x14)
- | (p_tmp2[ 1 ] >> 0xC)) + p_tmp1[ 2 ];
- if( i == 3 )
- {
- p_tmp2[ 1 ] = (p_tmp1[ 3 ] ^ p_tmp1[ 2 ] ^ p_tmp1[ 1 ])
- + p_input[ p_table[ i ][ 3 ] ];
- }
- else
- {
- p_tmp2[ 1 ] = ((~p_tmp1[ 3 ] & p_tmp1[ 2 ])
- | (p_tmp1[ 3 ] & p_tmp1[ 1 ]))
- + p_input[ p_table[ i ][ 3 ] ];
- }
- p_tmp1[ 0 ] = p_tmp2[ 0 ] + p_tmp2[ 1 ] + p_drms_tab_taos[ x++ ];
- }
-
- for( i = 0; i < 4; i++ )
- {
- uint8_t p_table[ 4 ][ 4 ] =
- {
- { 8, 11, 14, 1 },
- { 4, 7, 10, 13 },
- { 0, 3, 6, 9 },
- { 12, 15, 2, 0 }
- };
-
- p_tmp2[ 0 ] = ((p_tmp1[ 0 ] >> 0x1C)
- | (p_tmp1[ 0 ] << 0x4)) + p_tmp1[ 1 ];
- p_tmp2[ 1 ] = (p_tmp1[ 2 ] ^ p_tmp1[ 1 ] ^ p_tmp2[ 0 ])
- + p_input[ p_table[ i ][ 0 ] ];
- p_tmp2[ 1 ] += p_tmp1[ 3 ] + p_drms_tab_taos[ x++ ];
-
- p_tmp1[ 3 ] = ((p_tmp2[ 1 ] >> 0x15)
- | (p_tmp2[ 1 ] << 0xB)) + p_tmp2[ 0 ];
- p_tmp2[ 1 ] = (p_tmp1[ 3 ] ^ p_tmp1[ 1 ] ^ p_tmp2[ 0 ])
- + p_input[ p_table[ i ][ 1 ] ];
- p_tmp2[ 1 ] += p_tmp1[ 2 ] + p_drms_tab_taos[ x++ ];
-
- p_tmp1[ 2 ] = ((p_tmp2[ 1 ] >> 0x10)
- | (p_tmp2[ 1 ] << 0x10)) + p_tmp1[ 3 ];
- p_tmp2[ 1 ] = (p_tmp1[ 3 ] ^ p_tmp1[ 2 ] ^ p_tmp2[ 0 ])
- + p_input[ p_table[ i ][ 2 ] ];
- p_tmp2[ 1 ] += p_tmp1[ 1 ] + p_drms_tab_taos[ x++ ];
-
- p_tmp1[ 1 ] = ((p_tmp2[ 1 ] << 0x17)
- | (p_tmp2[ 1 ] >> 0x9)) + p_tmp1[ 2 ];
- if( i == 3 )
- {
- p_tmp2[ 1 ] = ((~p_tmp1[ 3 ] | p_tmp1[ 1 ]) ^ p_tmp1[ 2 ])
- + p_input[ p_table[ i ][ 3 ] ];
- }
- else
- {
- p_tmp2[ 1 ] = (p_tmp1[ 3 ] ^ p_tmp1[ 2 ] ^ p_tmp1[ 1 ])
- + p_input[ p_table[ i ][ 3 ] ];
- }
- p_tmp1[ 0 ] = p_tmp2[ 0 ] + p_tmp2[ 1 ] + p_drms_tab_taos[ x++ ];
- }
-
- for( i = 0; i < 4; i++ )
- {
- uint8_t p_table[ 4 ][ 4 ] =
- {
- { 7, 14, 5, 12 },
- { 3, 10, 1, 8 },
- { 15, 6, 13, 4 },
- { 11, 2, 9, 0 }
- };
-
- p_tmp2[ 0 ] = ((p_tmp1[ 0 ] >> 0x1A)
- | (p_tmp1[ 0 ] << 0x6)) + p_tmp1[ 1 ];
- p_tmp2[ 1 ] = ((~p_tmp1[ 2 ] | p_tmp2[ 0 ]) ^ p_tmp1[ 1 ])
- + p_input[ p_table[ i ][ 0 ] ];
- p_tmp2[ 1 ] += p_tmp1[ 3 ] + p_drms_tab_taos[ x++ ];
-
- p_tmp1[ 3 ] = ((p_tmp2[ 1 ] >> 0x16)
- | (p_tmp2[ 1 ] << 0xA)) + p_tmp2[ 0 ];
- p_tmp2[ 1 ] = ((~p_tmp1[ 1 ] | p_tmp1[ 3 ]) ^ p_tmp2[ 0 ])
- + p_input[ p_table[ i ][ 1 ] ];
- p_tmp2[ 1 ] += p_tmp1[ 2 ] + p_drms_tab_taos[ x++ ];
-
- p_tmp1[ 2 ] = ((p_tmp2[ 1 ] >> 0x11)
- | (p_tmp2[ 1 ] << 0xF)) + p_tmp1[ 3 ];
- p_tmp2[ 1 ] = ((~p_tmp2[ 0 ] | p_tmp1[ 2 ]) ^ p_tmp1[ 3 ])
- + p_input[ p_table[ i ][ 2 ] ];
- p_tmp2[ 1 ] += p_tmp1[ 1 ] + p_drms_tab_taos[ x++ ];
-
- p_tmp1[ 1 ] = ((p_tmp2[ 1 ] << 0x15)
- | (p_tmp2[ 1 ] >> 0xB)) + p_tmp1[ 2 ];
-
- if( i < 3 )
- {
- p_tmp2[ 1 ] = ((~p_tmp1[ 3 ] | p_tmp1[ 1 ]) ^ p_tmp1[ 2 ])
- + p_input[ p_table[ i ][ 3 ] ];
- p_tmp1[ 0 ] = p_tmp2[ 0 ] + p_tmp2[ 1 ] + p_drms_tab_taos[ x++ ];
- }
- }
-
- p_buffer[ 0 ] += p_tmp2[ 0 ];
- p_buffer[ 1 ] += p_tmp1[ 1 ];
- p_buffer[ 2 ] += p_tmp1[ 2 ];
- p_buffer[ 3 ] += p_tmp1[ 3 ];
-}
-
-static void taos_add1( uint32_t *p_buffer,
- uint8_t *p_in, uint32_t i_len )
-{
- uint32_t i;
- uint32_t x, y;
- uint32_t p_tmp[ 16 ];
- uint32_t i_offset = 0;
-
- x = p_buffer[ 6 ] & 63;
- y = 64 - x;
-
- p_buffer[ 6 ] += i_len;
-
- if( i_len < y )
- {
- memcpy( &((uint8_t *)p_buffer)[ 48 + x ], p_in, i_len );
- }
- else
- {
- if( x )
- {
- memcpy( &((uint8_t *)p_buffer)[ 48 + x ], p_in, y );
- taos( &p_buffer[ 8 ], &p_buffer[ 12 ] );
- i_offset = y;
- i_len -= y;
- }
-
- if( i_len >= 64 )
- {
- for( i = 0; i < i_len / 64; i++ )
- {
- memcpy( p_tmp, &p_in[ i_offset ], sizeof(p_tmp) );
- taos( &p_buffer[ 8 ], p_tmp );
- i_offset += 64;
- i_len -= 64;
- }
- }
-
- if( i_len )
- {
- memcpy( &p_buffer[ 12 ], &p_in[ i_offset ], i_len );
- }
- }
-}
-
-static void taos_end1( uint32_t *p_buffer, uint32_t *p_out )
-{
- uint32_t x, y;
-
- x = p_buffer[ 6 ] & 63;
- y = 63 - x;
-
- ((uint8_t *)p_buffer)[ 48 + x++ ] = 128;
-
- if( y < 8 )
- {
- memset( &((uint8_t *)p_buffer)[ 48 + x ], 0, y );
- taos( &p_buffer[ 8 ], &p_buffer[ 12 ] );
- y = 64;
- x = 0;
- }
-
- memset( &((uint8_t *)p_buffer)[ 48 + x ], 0, y );
-
- p_buffer[ 26 ] = p_buffer[ 6 ] * 8;
- p_buffer[ 27 ] = p_buffer[ 6 ] >> 29;
- taos( &p_buffer[ 8 ], &p_buffer[ 12 ] );
-
- memcpy( p_out, &p_buffer[ 8 ], sizeof(*p_out) * 4 );
-}
-
-static void taos_add2( uint32_t *p_buffer, uint8_t *p_in, uint32_t i_len )
-{
- uint32_t i, x;
- uint32_t p_tmp[ 16 ];
-
- x = (p_buffer[ 0 ] / 8) & 63;
- i = p_buffer[ 0 ] + i_len * 8;
-
- if( i < p_buffer[ 0 ] )
- {
- p_buffer[ 1 ] += 1;
- }
-
- p_buffer[ 0 ] = i;
- p_buffer[ 1 ] += i_len >> 29;
-
- for( i = 0; i < i_len; i++ )
- {
- ((uint8_t *)p_buffer)[ 24 + x++ ] = p_in[ i ];
-
- if( x != 64 )
- continue;
-
- memcpy( p_tmp, &p_buffer[ 6 ], sizeof(p_tmp) );
- taos( &p_buffer[ 2 ], p_tmp );
- }
-}
-
-static void taos_add2e( uint32_t *p_buffer, uint32_t *p_in, uint32_t i_len )
-{
- uint32_t i, x, y;
- uint32_t p_tmp[ 32 ];
-
- if( i_len )
- {
- for( x = i_len; x; x -= y )
- {
- y = x > 32 ? 32 : x;
-
- for( i = 0; i < y; i++ )
- {
- p_tmp[ i ] = U32_AT(&p_in[ i ]);
- }
- }
- }
-
- taos_add2( p_buffer, (uint8_t *)p_tmp, i_len * sizeof(p_tmp[ 0 ]) );
-}
-
-static void taos_end2( uint32_t *p_buffer )
-{
- uint32_t x;
- uint32_t p_tmp[ 16 ];
-
- p_tmp[ 14 ] = p_buffer[ 0 ];
- p_tmp[ 15 ] = p_buffer[ 1 ];
-
- x = (p_buffer[ 0 ] / 8) & 63;
-
- taos_add2( p_buffer, p_drms_tab_tend, 56 - x );
- memcpy( p_tmp, &p_buffer[ 6 ], 56 );
- taos( &p_buffer[ 2 ], p_tmp );
- memcpy( &p_buffer[ 22 ], &p_buffer[ 2 ], sizeof(*p_buffer) * 4 );
-}
-
-static void taos_add3( uint32_t *p_buffer, uint8_t *p_key, uint32_t i_len )
-{
- uint32_t x, y;
- uint32_t i = 0;
-
- x = (p_buffer[ 4 ] / 8) & 63;
- p_buffer[ 4 ] += i_len * 8;
-
- if( p_buffer[ 4 ] < i_len * 8 )
- p_buffer[ 5 ] += 1;
-
- p_buffer[ 5 ] += i_len >> 29;
-
- y = 64 - x;
-
- if( i_len >= y )
- {
- memcpy( &((uint8_t *)p_buffer)[ 24 + x ], p_key, y );
- taos( p_buffer, &p_buffer[ 6 ] );
-
- i = y;
- y += 63;
-
- if( y < i_len )
- {
- for( ; y < i_len; y += 64, i += 64 )
- {
- taos( p_buffer, (uint32_t *)&p_key[y - 63] );
- }
- }
- else
- {
- x = 0;
- }
- }
-
- memcpy( &((uint8_t *)p_buffer)[ 24 + x ], &p_key[ i ], i_len - i );
-}
-
-static int taos_osi( uint32_t *p_buffer )
-{
- int i_ret = 0;
-
-#ifdef _WIN32
- HKEY i_key;
- uint32_t i;
- DWORD i_size;
- DWORD i_serial;
- LPBYTE p_reg_buf;
-
- static LPCTSTR p_reg_keys[ 3 ][ 2 ] =
- {
- {
- _T("HARDWARE\\DESCRIPTION\\System"),
- _T("SystemBiosVersion")
- },
-
- {
- _T("HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0"),
- _T("ProcessorNameString")
- },
-
- {
- _T("SOFTWARE\\Microsoft\\Windows\\CurrentVersion"),
- _T("ProductId")
- }
- };
-
- taos_add1( p_buffer, "cache-control", 13 );
- taos_add1( p_buffer, "Ethernet", 8 );
-
- GetVolumeInformation( _T("C:\\"), NULL, 0, &i_serial,
- NULL, NULL, NULL, 0 );
- taos_add1( p_buffer, (uint8_t *)&i_serial, 4 );
-
- for( i = 0; i < sizeof(p_reg_keys)/sizeof(p_reg_keys[ 0 ]); i++ )
- {
- if( RegOpenKeyEx( HKEY_LOCAL_MACHINE, p_reg_keys[ i ][ 0 ],
- 0, KEY_READ, &i_key ) == ERROR_SUCCESS )
- {
- if( RegQueryValueEx( i_key, p_reg_keys[ i ][ 1 ],
- NULL, NULL, NULL,
- &i_size ) == ERROR_SUCCESS )
- {
- p_reg_buf = malloc( i_size );
-
- if( p_reg_buf != NULL )
- {
- if( RegQueryValueEx( i_key, p_reg_keys[ i ][ 1 ],
- NULL, NULL, p_reg_buf,
- &i_size ) == ERROR_SUCCESS )
- {
- taos_add1( p_buffer, (uint8_t *)p_reg_buf,
- i_size );
- }
-
- free( p_reg_buf );
- }
- }
-
- RegCloseKey( i_key );
- }
- }
-
-#else
- i_ret = -1;
-#endif
-
- return( i_ret );
-}
-
-static int get_sci_data( uint32_t p_sci[ 11 ][ 4 ] )
-{
- int i_ret = -1;
-
-#ifdef _WIN32
- HANDLE i_file;
- DWORD i_size, i_read;
- TCHAR p_path[ MAX_PATH ];
- TCHAR *p_filename = _T("\\Apple Computer\\iTunes\\SC Info\\SC Info.sidb");
-
- typedef HRESULT (WINAPI *SHGETFOLDERPATH)( HWND, int, HANDLE, DWORD,
- LPTSTR );
-
- HINSTANCE shfolder_dll = NULL;
- SHGETFOLDERPATH dSHGetFolderPath = NULL;
-
- if( ( shfolder_dll = LoadLibrary( _T("SHFolder.dll") ) ) != NULL )
- {
- dSHGetFolderPath =
- (SHGETFOLDERPATH)GetProcAddress( shfolder_dll,
-#ifdef _UNICODE
- _T("SHGetFolderPathW") );
-#else
- _T("SHGetFolderPathA") );
-#endif
- }
-
- if( dSHGetFolderPath != NULL &&
- SUCCEEDED( dSHGetFolderPath( NULL, /*CSIDL_COMMON_APPDATA*/ 0x0023,
- NULL, 0, p_path ) ) )
- {
- _tcsncat( p_path, p_filename, min( _tcslen( p_filename ),
- (MAX_PATH-1) - _tcslen( p_path ) ) );
-
- i_file = CreateFile( p_path, GENERIC_READ, 0, NULL,
- OPEN_EXISTING, 0, NULL );
- if( i_file != INVALID_HANDLE_VALUE )
- {
- i_read = sizeof(p_sci[ 0 ]) * 11;
- i_size = GetFileSize( i_file, NULL );
- if( i_size != INVALID_FILE_SIZE && i_size >= i_read )
- {
- i_size = SetFilePointer( i_file, 4, NULL, FILE_BEGIN );
- if( i_size != /*INVALID_SET_FILE_POINTER*/ ((DWORD)-1))
- {
- if( ReadFile( i_file, p_sci, i_read, &i_size, NULL ) &&
- i_size == i_read )
- {
- i_ret = 0;
- }
- }
- }
-
- CloseHandle( i_file );
- }
- }
-#endif
-
- return( i_ret );
-}
-
-static void acei_taxs( uint32_t *p_acei, uint32_t i_val )
-{
- uint32_t i, x;
-
- i = (i_val / 16) & 15;
- x = (~(i_val & 15)) & 15;
-
- if( (i_val & 768) == 768 )
- {
- x = (~i) & 15;
- i = i_val & 15;
-
- p_acei[ 25 + i ] = p_acei[ 25 + ((16 - x) & 15) ]
- + p_acei[ 25 + (15 - x) ];
- }
- else if( (i_val & 512) == 512 )
- {
- p_acei[ 25 + i ] ^= p_drms_tab_xor[ 15 - i ][ x ];
- }
- else if( (i_val & 256) == 256 )
- {
- p_acei[ 25 + i ] -= p_drms_tab_sub[ 15 - i ][ x ];
- }
- else
- {
- p_acei[ 25 + i ] += p_drms_tab_add[ 15 - i ][ x ];
- }
-}
-
-static void acei( uint32_t *p_acei, uint8_t *p_buffer, uint32_t i_len )
-{
- uint32_t i, x;
- uint32_t p_tmp[ 26 ];
-
- for( i = 5; i < 25; i++ )
- {
- if( p_acei[ i ] )
- {
- acei_taxs( p_acei, p_acei[ i ] );
- }
- }
-
- TAOS_INIT( p_tmp, 2 );
- taos_add2e( p_tmp, &p_acei[ 25 ], sizeof(*p_acei) * 4 );
- taos_end2( p_tmp );
-
- x = i_len < 16 ? i_len : 16;
-
- if( x > 0 )
- {
- for( i = 0; i < x; i++ )
- {
- p_buffer[ i ] ^= ((uint8_t *)&p_tmp)[ 88 + i ];
- }
- }
-}
-
-static uint32_t ttov_calc( uint32_t *p_acei )
-{
- int32_t i_val;
- uint32_t p_tmp[ 26 ];
-
- TAOS_INIT( p_tmp, 2 );
- taos_add2e( p_tmp, &p_acei[ 0 ], 4 );
- taos_add2e( p_tmp, &p_acei[ 4 ], 1 );
- taos_end2( p_tmp );
-
- p_acei[ 4 ]++;
-
- i_val = ((int32_t)U32_AT(&p_tmp[ 22 ])) % 1024;
-
- return( i_val < 0 ? i_val * -1 : i_val );
-}
-
-static void acei_init( uint32_t *p_acei, uint32_t *p_sys_key )
-{
- uint32_t i;
-
- for( i = 0; i < 4; i++ )
- {
- p_acei[ i ] = U32_AT(&p_sys_key[ i ]);
- }
-
- p_acei[ 4 ] = 0x5476212A;
-
- for( i = 5; i < 25; i++ )
- {
- p_acei[ i ] = ttov_calc( p_acei );
- }
-
- p_acei[ 25 + 0 ] = p_acei[ 0 ];
- p_acei[ 25 + 1 ] = 0x68723876;
- p_acei[ 25 + 2 ] = 0x41617376;
- p_acei[ 25 + 3 ] = 0x4D4B4F76;
-
- p_acei[ 25 + 4 ] = p_acei[ 1 ];
- p_acei[ 25 + 5 ] = 0x48556646;
- p_acei[ 25 + 6 ] = 0x38393725;
- p_acei[ 25 + 7 ] = 0x2E3B5B3D;
-
- p_acei[ 25 + 8 ] = p_acei[ 2 ];
- p_acei[ 25 + 9 ] = 0x37363866;
- p_acei[ 25 + 10 ] = 0x30383637;
- p_acei[ 25 + 11 ] = 0x34333661;
-
- p_acei[ 25 + 12 ] = p_acei[ 3 ];
- p_acei[ 25 + 13 ] = 0x37386162;
- p_acei[ 25 + 14 ] = 0x494F6E66;
- p_acei[ 25 + 15 ] = 0x2A282966;
-}
-
-static __inline void block_xor( uint32_t *p_in, uint32_t *p_key,
- uint32_t *p_out )
-{
- uint32_t i;
-
- for( i = 0; i < 4; i++ )
- {
- p_out[ i ] = p_key[ i ] ^ p_in[ i ];
- }
-}
-
-int drms_get_sys_key( uint32_t *p_sys_key )
-{
- uint32_t p_tmp[ 128 ];
- uint32_t p_tmp_key[ 4 ];
-
- TAOS_INIT( p_tmp, 8 );
- if( taos_osi( p_tmp ) )
- {
- return( -1 );
- }
- taos_end1( p_tmp, p_tmp_key );
-
- TAOS_INIT( p_tmp, 2 );
- taos_add2( p_tmp, "YuaFlafu", 8 );
- taos_add2( p_tmp, (uint8_t *)p_tmp_key, 6 );
- taos_add2( p_tmp, (uint8_t *)p_tmp_key, 6 );
- taos_add2( p_tmp, (uint8_t *)p_tmp_key, 6 );
- taos_add2( p_tmp, "zPif98ga", 8 );
- taos_end2( p_tmp );
-
- memcpy( p_sys_key, &p_tmp[ 2 ], sizeof(*p_sys_key) * 4 );
-
- return( 0 );
-}
-
-int drms_get_user_key( uint32_t *p_sys_key, uint32_t *p_user_key )
-{
- uint32_t i;
- uint32_t p_tmp[ 4 ];
- uint32_t *p_cur_key;
- uint32_t p_acei[ 41 ];
- uint32_t p_ctx[ 128 ];
- uint32_t p_sci[ 2 ][ 11 ][ 4 ];
-
- uint32_t p_sci_key[ 4 ] =
- {
- 0x6E66556D, 0x6E676F70, 0x67666461, 0x33373866
- };
-
- if( p_sys_key == NULL )
- {
- if( drms_get_sys_key( p_tmp ) )
- {
- return( -1 );
- }
-
- p_sys_key = p_tmp;
- }
-
- if( get_sci_data( p_sci[ 0 ] ) )
- {
- return( -1 );
- }
-
- init_ctx( p_ctx, p_sys_key );
-
- for( i = 0, p_cur_key = p_sci_key;
- i < sizeof(p_sci[ 0 ])/sizeof(p_sci[ 0 ][ 0 ]); i++ )
- {
- ctx_xor( p_ctx, &p_sci[ 0 ][ i ][ 0 ], &p_sci[ 1 ][ i ][ 0 ],
- p_drms_tab3, p_drms_tab4 );
- block_xor( &p_sci[ 1 ][ i ][ 0 ], p_cur_key, &p_sci[ 1 ][ i ][ 0 ] );
-
- p_cur_key = &p_sci[ 0 ][ i ][ 0 ];
- }
-
- acei_init( p_acei, p_sys_key );
-
- for( i = 0; i < sizeof(p_sci[ 1 ])/sizeof(p_sci[ 1 ][ 0 ]); i++ )
- {
- acei( p_acei, (uint8_t *)&p_sci[ 1 ][ i ][ 0 ],
- sizeof(p_sci[ 1 ][ i ]) );
- }
-
- memcpy( p_user_key, &p_sci[ 1 ][ 10 ][ 0 ], sizeof(p_sci[ 1 ][ i ]) );
-
- return( 0 );
-}
-
-struct drms_s
-{
- uint8_t *p_iviv;
- uint32_t i_iviv_len;
- uint8_t *p_name;
- uint32_t i_name_len;
-
- uint32_t *p_tmp;
- uint32_t i_tmp_len;
-
- uint32_t p_key[ 4 ];
- uint32_t p_ctx[ 128 ];
-};
-
-#define P_DRMS ((struct drms_s *)p_drms)
-
-void *drms_alloc()
-{
- struct drms_s *p_drms;
-
- p_drms = malloc( sizeof(struct drms_s) );
-
- if( p_drms != NULL )
- {
- memset( p_drms, 0, sizeof(struct drms_s) );
-
- p_drms->i_tmp_len = 1024;
- p_drms->p_tmp = malloc( p_drms->i_tmp_len );
- if( p_drms->p_tmp == NULL )
- {
- free( (void *)p_drms );
- p_drms = NULL;
- }
- }
-
- return( (void *)p_drms );
-}
-
-void drms_free( void *p_drms )
-{
- if( P_DRMS->p_name != NULL )
- {
- free( (void *)P_DRMS->p_name );
- }
-
- if( P_DRMS->p_iviv != NULL )
- {
- free( (void *)P_DRMS->p_iviv );
- }
-
- if( P_DRMS->p_tmp != NULL )
- {
- free( (void *)P_DRMS->p_tmp );
- }
-
- free( p_drms );
-}
-
-void drms_decrypt( void *p_drms, uint32_t *p_buffer, uint32_t i_len )
-{
- uint32_t i, x, y;
- uint32_t *p_cur_key = P_DRMS->p_key;
-
- x = (i_len / sizeof(P_DRMS->p_key)) * sizeof(P_DRMS->p_key);
-
- if( P_DRMS->i_tmp_len < x )
- {
- free( (void *)P_DRMS->p_tmp );
-
- P_DRMS->i_tmp_len = x;
- P_DRMS->p_tmp = malloc( P_DRMS->i_tmp_len );
- }
-
- if( P_DRMS->p_tmp != NULL )
- {
- memcpy( P_DRMS->p_tmp, p_buffer, x );
-
- for( i = 0, x /= sizeof(P_DRMS->p_key); i < x; i++ )
- {
- y = i * sizeof(*p_buffer);
-
- ctx_xor( P_DRMS->p_ctx, P_DRMS->p_tmp + y, p_buffer + y,
- p_drms_tab3, p_drms_tab4 );
- block_xor( p_buffer + y, p_cur_key, p_buffer + y );
-
- p_cur_key = P_DRMS->p_tmp + y;
- }
- }
-}
-
-int drms_init( void *p_drms, uint32_t i_type,
- uint8_t *p_info, uint32_t i_len )
-{
- int i_ret = 0;
-
- switch( i_type )
- {
- case DRMS_INIT_UKEY:
- {
- if( i_len != sizeof(P_DRMS->p_key) )
- {
- i_ret = -1;
- break;
- }
-
- init_ctx( P_DRMS->p_ctx, (uint32_t *)p_info );
- }
- break;
-
- case DRMS_INIT_IVIV:
- {
- if( i_len != sizeof(P_DRMS->p_key) )
- {
- i_ret = -1;
- break;
- }
-
- P_DRMS->p_iviv = malloc( i_len );
- if( P_DRMS->p_iviv == NULL )
- {
- i_ret = -1;
- break;
- }
-
- memcpy( P_DRMS->p_iviv, p_info, i_len );
- P_DRMS->i_iviv_len = i_len;
- }
- break;
-
- case DRMS_INIT_NAME:
- {
- P_DRMS->p_name = malloc( i_len );
- if( P_DRMS->p_name == NULL )
- {
- i_ret = -1;
- break;
- }
-
- memcpy( P_DRMS->p_name, p_info, i_len );
- P_DRMS->i_name_len = i_len;
- }
- break;
-
- case DRMS_INIT_PRIV:
- {
- uint32_t i;
- uint32_t p_priv[ 64 ];
- uint32_t p_tmp[ 128 ];
-
- if( i_len < 64 )
- {
- i_ret = -1;
- break;
- }
-
- TAOS_INIT( p_tmp, 0 );
- taos_add3( p_tmp, P_DRMS->p_name, P_DRMS->i_name_len );
- taos_add3( p_tmp, P_DRMS->p_iviv, P_DRMS->i_iviv_len );
- memcpy( p_priv, &p_tmp[ 4 ], sizeof(p_priv[ 0 ]) * 2 );
- i = (p_tmp[ 4 ] / 8) & 63;
- i = i >= 56 ? 120 - i : 56 - i;
- taos_add3( p_tmp, p_drms_tab_tend, i );
- taos_add3( p_tmp, (uint8_t *)p_priv, sizeof(p_priv[ 0 ]) * 2 );
-
- memcpy( p_priv, p_info, 64 );
- memcpy( P_DRMS->p_key, p_tmp, sizeof(P_DRMS->p_key) );
- drms_decrypt( p_drms, p_priv, sizeof(p_priv) );
-
- init_ctx( P_DRMS->p_ctx, &p_priv[ 6 ] );
- memcpy( P_DRMS->p_key, &p_priv[ 12 ], sizeof(P_DRMS->p_key) );
-
- free( (void *)P_DRMS->p_name );
- P_DRMS->p_name = NULL;
- free( (void *)P_DRMS->p_iviv );
- P_DRMS->p_iviv = NULL;
- }
- break;
- }
-
- return( i_ret );
-}
-
-#undef P_DRMS
-
-#endif
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 16:18:58 +0000