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* modules/demux/mp4/drms.c: cosmetic changes to some variable names.

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This commit is contained in:
Sam Hocevar 2006-02-13 13:31:01 +00:00
parent 1a3466cdee
commit 9f5f3cc9c8
1 changed files with 15 additions and 16 deletions
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31
modules/demux/mp4/drms.c
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@ -752,7 +752,7 @@ static void DoShuffle( struct shuffle_s *p_shuffle,
static uint32_t i_secret = 0;
static uint32_t p_secret1[] =
static uint32_t p_secret3[] =
{
0xAAAAAAAA, 0x01757700, 0x00554580, 0x01724500, 0x00424580,
0x01427700, 0x00000080, 0xC1D59D01, 0x80144981, 0x815C8901,
@ -763,17 +763,17 @@ static void DoShuffle( struct shuffle_s *p_shuffle,
0x00000080, 0x55555555
};
static char p_secret2[] =
static char p_secret4[] =
"pbclevtug (p) Nccyr Pbzchgre, Vap. Nyy Evtugf Erfreirq.";
if( i_secret == 0 )
{
REVERSE( p_secret1, sizeof(p_secret1)/sizeof(p_secret1[ 0 ]) );
for( ; p_secret2[ i_secret ] != '\0'; i_secret++ )
REVERSE( p_secret3, sizeof(p_secret3)/sizeof(p_secret3[ 0 ]) );
for( ; p_secret4[ i_secret ] != '\0'; i_secret++ )
{
#define ROT13(c) (((c)>='A'&&(c)<='Z')?(((c)-'A'+13)%26)+'A':\
((c)>='a'&&(c)<='z')?(((c)-'a'+13)%26)+'a':c)
p_secret2[ i_secret ] = ROT13(p_secret2[ i_secret ]);
p_secret4[ i_secret ] = ROT13(p_secret4[ i_secret ]);
}
i_secret++; /* include zero terminator */
}
@ -826,8 +826,8 @@ static void DoShuffle( struct shuffle_s *p_shuffle,
AddMD5( &md5, (uint8_t *)p_big_bordel, 64 );
if( p_shuffle->i_version == 0x01000300 )
{
AddMD5( &md5, (uint8_t *)p_secret1, sizeof(p_secret1) );
AddMD5( &md5, (uint8_t *)p_secret2, i_secret );
AddMD5( &md5, (uint8_t *)p_secret3, sizeof(p_secret3) );
AddMD5( &md5, (uint8_t *)p_secret4, i_secret );
}
EndMD5( &md5 );
@ -1505,8 +1505,8 @@ static void TinyShuffle8( uint32_t * p_bordel )
*****************************************************************************/
static int GetSystemKey( uint32_t *p_sys_key, vlc_bool_t b_ipod )
{
static char const p_secret1[ 8 ] = "YuaFlafu";
static char const p_secret2[ 8 ] = "zPif98ga";
static char const p_secret5[ 8 ] = "YuaFlafu";
static char const p_secret6[ 8 ] = "zPif98ga";
struct md5_s md5;
int64_t i_ipod_id;
uint32_t p_system_hash[ 4 ];
@ -1521,14 +1521,14 @@ static int GetSystemKey( uint32_t *p_sys_key, vlc_bool_t b_ipod )
/* Combine our system info hash with additional secret data. The resulting
* MD5 hash will be our system key. */
InitMD5( &md5 );
AddMD5( &md5, p_secret1, 8 );
AddMD5( &md5, p_secret5, 8 );
if( !b_ipod )
{
AddMD5( &md5, (uint8_t *)p_system_hash, 6 );
AddMD5( &md5, (uint8_t *)p_system_hash, 6 );
AddMD5( &md5, (uint8_t *)p_system_hash, 6 );
AddMD5( &md5, p_secret2, 8 );
AddMD5( &md5, p_secret6, 8 );
}
else
{
@ -1628,7 +1628,7 @@ static int ReadUserKey( void *_p_drms, uint32_t *p_user_key )
*****************************************************************************/
static int GetUserKey( void *_p_drms, uint32_t *p_user_key )
{
static char const p_secret[] = "mUfnpognadfgf873";
static char const p_secret7[] = "mUfnpognadfgf873";
struct drms_s *p_drms = (struct drms_s *)_p_drms;
struct aes_s aes;
struct shuffle_s shuffle;
@ -1674,7 +1674,7 @@ static int GetUserKey( void *_p_drms, uint32_t *p_user_key )
REVERSE( p_sci_data, 1 );
InitShuffle( &shuffle, p_sys_key, p_sci_data[ 0 ] );
memcpy( p_sci_key, p_secret, 16 );
memcpy( p_sci_key, p_secret7, 16 );
REVERSE( p_sci_key, 4 );
while( i_blocks-- )
@ -1699,9 +1699,8 @@ static int GetUserKey( void *_p_drms, uint32_t *p_user_key )
if( i_remaining >= 4 )
{
i_remaining /= 4;
REVERSE( p_buffer, i_remaining );
DoShuffle( &shuffle, p_buffer, i_remaining );
REVERSE( p_buffer, i_remaining / 4 );
DoShuffle( &shuffle, p_buffer, i_remaining / 4 );
}
/* Phase 2: look for the user key in the generated data. I must admit I