Skip to content

V
vlc
Commit 32e82c69 authored by Stéphane Borel's avatar Stéphane Borel
Browse files
Options

*Some cleaning in the dvd authentification code 

Now it generates a valid title key, but there is no sector descrambler
yet.
parent 7b3ed3ad
Hide whitespace changes
Inline Side-by-side
Showing with 600 additions and 897 deletions
src/input/dvd_css.c
View file @ 32e82c69
......@@ -49,7 +49,7 @@
* CSS tables
*****************************************************************************/
unsigned int pi_css_tab0[11]={5,0,1,2,3,4,0,1,2,3,4};
unsigned int pi_css_tab0[11]={ 5, 0, 1, 2, 3, 4, 0, 1, 2, 3, 4 };
unsigned char pi_css_tab1[256]=
{ 0x33, 0x73, 0x3b, 0x26, 0x63, 0x23, 0x6b, 0x76,
......@@ -62,7 +62,7 @@ unsigned char pi_css_tab1[256]=
0xd8, 0x98, 0xd0, 0x01, 0x48, 0x08, 0x40, 0x91,
0x3d, 0x7d, 0x35, 0x24, 0x6d, 0x2d, 0x65, 0x74,
0x3c, 0x7c, 0x34, 0x25, 0x6c, 0x2c, 0x64, 0x75,
0xdd, 0x9d, 0xd5, 0x04, 0x4d, 0x0d, 0x45, 0x94,
0xdd, 0x9d, 0xd5, 0x04, 0x4d, 0x0d, 0x45, 0x94,
0xdc, 0x9c, 0xd4, 0x05, 0x4c, 0x0c, 0x44, 0x95,
0x59, 0x19, 0x51, 0x80, 0xc9, 0x89, 0xc1, 0x10,
0x58, 0x18, 0x50, 0x81, 0xc8, 0x88, 0xc0, 0x11,
......@@ -121,81 +121,138 @@ unsigned char pi_css_tab2[256]=
};
unsigned char pi_css_tab3[512]=
{
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff, 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff
};
{ 0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff,
0x00, 0x24, 0x49, 0x6d, 0x92, 0xb6, 0xdb, 0xff };
unsigned char pi_css_tab4[256]=
{
0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
};
{ 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff };
unsigned char pi_css_tab5[256]=
{
0xff, 0x7f, 0xbf, 0x3f, 0xdf, 0x5f, 0x9f, 0x1f, 0xef, 0x6f, 0xaf, 0x2f, 0xcf, 0x4f, 0x8f, 0x0f,
0xf7, 0x77, 0xb7, 0x37, 0xd7, 0x57, 0x97, 0x17, 0xe7, 0x67, 0xa7, 0x27, 0xc7, 0x47, 0x87, 0x07,
0xfb, 0x7b, 0xbb, 0x3b, 0xdb, 0x5b, 0x9b, 0x1b, 0xeb, 0x6b, 0xab, 0x2b, 0xcb, 0x4b, 0x8b, 0x0b,
0xf3, 0x73, 0xb3, 0x33, 0xd3, 0x53, 0x93, 0x13, 0xe3, 0x63, 0xa3, 0x23, 0xc3, 0x43, 0x83, 0x03,
0xfd, 0x7d, 0xbd, 0x3d, 0xdd, 0x5d, 0x9d, 0x1d, 0xed, 0x6d, 0xad, 0x2d, 0xcd, 0x4d, 0x8d, 0x0d,
0xf5, 0x75, 0xb5, 0x35, 0xd5, 0x55, 0x95, 0x15, 0xe5, 0x65, 0xa5, 0x25, 0xc5, 0x45, 0x85, 0x05,
0xf9, 0x79, 0xb9, 0x39, 0xd9, 0x59, 0x99, 0x19, 0xe9, 0x69, 0xa9, 0x29, 0xc9, 0x49, 0x89, 0x09,
0xf1, 0x71, 0xb1, 0x31, 0xd1, 0x51, 0x91, 0x11, 0xe1, 0x61, 0xa1, 0x21, 0xc1, 0x41, 0x81, 0x01,
0xfe, 0x7e, 0xbe, 0x3e, 0xde, 0x5e, 0x9e, 0x1e, 0xee, 0x6e, 0xae, 0x2e, 0xce, 0x4e, 0x8e, 0x0e,
0xf6, 0x76, 0xb6, 0x36, 0xd6, 0x56, 0x96, 0x16, 0xe6, 0x66, 0xa6, 0x26, 0xc6, 0x46, 0x86, 0x06,
0xfa, 0x7a, 0xba, 0x3a, 0xda, 0x5a, 0x9a, 0x1a, 0xea, 0x6a, 0xaa, 0x2a, 0xca, 0x4a, 0x8a, 0x0a,
0xf2, 0x72, 0xb2, 0x32, 0xd2, 0x52, 0x92, 0x12, 0xe2, 0x62, 0xa2, 0x22, 0xc2, 0x42, 0x82, 0x02,
0xfc, 0x7c, 0xbc, 0x3c, 0xdc, 0x5c, 0x9c, 0x1c, 0xec, 0x6c, 0xac, 0x2c, 0xcc, 0x4c, 0x8c, 0x0c,
0xf4, 0x74, 0xb4, 0x34, 0xd4, 0x54, 0x94, 0x14, 0xe4, 0x64, 0xa4, 0x24, 0xc4, 0x44, 0x84, 0x04,
0xf8, 0x78, 0xb8, 0x38, 0xd8, 0x58, 0x98, 0x18, 0xe8, 0x68, 0xa8, 0x28, 0xc8, 0x48, 0x88, 0x08,
0xf0, 0x70, 0xb0, 0x30, 0xd0, 0x50, 0x90, 0x10, 0xe0, 0x60, 0xa0, 0x20, 0xc0, 0x40, 0x80, 0x00
};
{ 0xff, 0x7f, 0xbf, 0x3f, 0xdf, 0x5f, 0x9f, 0x1f,
0xef, 0x6f, 0xaf, 0x2f, 0xcf, 0x4f, 0x8f, 0x0f,
0xf7, 0x77, 0xb7, 0x37, 0xd7, 0x57, 0x97, 0x17,
0xe7, 0x67, 0xa7, 0x27, 0xc7, 0x47, 0x87, 0x07,
0xfb, 0x7b, 0xbb, 0x3b, 0xdb, 0x5b, 0x9b, 0x1b,
0xeb, 0x6b, 0xab, 0x2b, 0xcb, 0x4b, 0x8b, 0x0b,
0xf3, 0x73, 0xb3, 0x33, 0xd3, 0x53, 0x93, 0x13,
0xe3, 0x63, 0xa3, 0x23, 0xc3, 0x43, 0x83, 0x03,
0xfd, 0x7d, 0xbd, 0x3d, 0xdd, 0x5d, 0x9d, 0x1d,
0xed, 0x6d, 0xad, 0x2d, 0xcd, 0x4d, 0x8d, 0x0d,
0xf5, 0x75, 0xb5, 0x35, 0xd5, 0x55, 0x95, 0x15,
0xe5, 0x65, 0xa5, 0x25, 0xc5, 0x45, 0x85, 0x05,
0xf9, 0x79, 0xb9, 0x39, 0xd9, 0x59, 0x99, 0x19,
0xe9, 0x69, 0xa9, 0x29, 0xc9, 0x49, 0x89, 0x09,
0xf1, 0x71, 0xb1, 0x31, 0xd1, 0x51, 0x91, 0x11,
0xe1, 0x61, 0xa1, 0x21, 0xc1, 0x41, 0x81, 0x01,
0xfe, 0x7e, 0xbe, 0x3e, 0xde, 0x5e, 0x9e, 0x1e,
0xee, 0x6e, 0xae, 0x2e, 0xce, 0x4e, 0x8e, 0x0e,
0xf6, 0x76, 0xb6, 0x36, 0xd6, 0x56, 0x96, 0x16,
0xe6, 0x66, 0xa6, 0x26, 0xc6, 0x46, 0x86, 0x06,
0xfa, 0x7a, 0xba, 0x3a, 0xda, 0x5a, 0x9a, 0x1a,
0xea, 0x6a, 0xaa, 0x2a, 0xca, 0x4a, 0x8a, 0x0a,
0xf2, 0x72, 0xb2, 0x32, 0xd2, 0x52, 0x92, 0x12,
0xe2, 0x62, 0xa2, 0x22, 0xc2, 0x42, 0x82, 0x02,
0xfc, 0x7c, 0xbc, 0x3c, 0xdc, 0x5c, 0x9c, 0x1c,
0xec, 0x6c, 0xac, 0x2c, 0xcc, 0x4c, 0x8c, 0x0c,
0xf4, 0x74, 0xb4, 0x34, 0xd4, 0x54, 0x94, 0x14,
0xe4, 0x64, 0xa4, 0x24, 0xc4, 0x44, 0x84, 0x04,
0xf8, 0x78, 0xb8, 0x38, 0xd8, 0x58, 0x98, 0x18,
0xe8, 0x68, 0xa8, 0x28, 0xc8, 0x48, 0x88, 0x08,
0xf0, 0x70, 0xb0, 0x30, 0xd0, 0x50, 0x90, 0x10,
0xe0, 0x60, 0xa0, 0x20, 0xc0, 0x40, 0x80, 0x00 };
/*
* Local functions
......@@ -206,40 +263,21 @@ unsigned char pi_css_tab5[256]=
*****************************************************************************/
int CSSGetASF( int i_fd )
{
#if 0
dvd_authinfo auth;
dvd_authinfo ai;
auth.type = DVD_LU_SEND_ASF;
auth.lsasf.asf = 0;
ai.type = DVD_LU_SEND_ASF;
ai.lsasf.asf = 0;
for( auth.lsasf.agid = 0 ; auth.lsasf.agid < 4 ; auth.lsasf.agid++ )
for( ai.lsasf.agid = 0 ; ai.lsasf.agid < 4 ; ai.lsasf.agid++ )
{
if( ioctl( i_fd, DVD_AUTH, &auth ) )
if( !( ioctl( i_fd, DVD_AUTH, &ai ) ) )
{
intf_ErrMsg( "DVD ioctl error in CSSGetASF" );
return -1;
}
}
// ("%sAuthenticated\n", (ai.lsasf.asf) ? "" : "not");
return 0;
#else
dvd_authinfo ai;
ai.type = DVD_LU_SEND_ASF;
ai.lsasf.asf = 0;
for (ai.lsasf.agid = 0; ai.lsasf.agid < 4; ai.lsasf.agid++) {
if (!(ioctl(i_fd, DVD_AUTH, &ai))) {
fprintf( stderr, "%sAuthenticated\n", (ai.lsasf.asf) ? "" : "not");
return 0;
}
}
intf_ErrMsg( "CSS Error : GetASF" );
return -1;
#endif
fprintf( stderr, "%sAuthenticated\n", (ai.lsasf.asf) ? "" : "not");
return 0;
}
}
intf_ErrMsg( "CSS Error : GetASF" );
return -1;
}
/*****************************************************************************
......@@ -248,9 +286,8 @@ int CSSGetASF( int i_fd )
* i_key_type : 0->key1, 1->key2, 2->buskey.
* i_varient : between 0 and 31.
*****************************************************************************/
#if 0
static void CSSCryptKey( int i_key_type, int i_varient,
u8* pi_challenge, u8* pi_key )
u8 const * pi_challenge, u8* pi_key )
{
/* Permutation table for challenge */
u8 ppi_perm_challenge[3][10] =
......@@ -267,7 +304,7 @@ static void CSSCryptKey( int i_key_type, int i_varient,
0x10, 0x18, 0x14, 0x1c, 0x00, 0x08, 0x04, 0x0c,
0x13, 0x1b, 0x17, 0x1f, 0x03, 0x0b, 0x07, 0x0f,
0x11, 0x19, 0x15, 0x1d, 0x01, 0x09, 0x05, 0x0d } };
u8 pi_css_secret[5] = { 0xE2,0xA3,0x45,0x10,0xF4 };
u8 pi_css_secret[5] = { 0xE2, 0xA3, 0x45, 0x10, 0xF4 };
u8 pi_css_varients[32] =
{ 0x00, 0x01, 0x04, 0x05, 0x10, 0x11, 0x14, 0x15,
0x20, 0x21, 0x24, 0x25, 0x30, 0x31, 0x34, 0x35,
......@@ -275,10 +312,13 @@ static void CSSCryptKey( int i_key_type, int i_varient,
0xA0, 0xA1, 0xA4, 0xA5, 0xB0, 0xB1, 0xB4, 0xB5 };
u8 pi_bits[30];
u8 pi_scratch[10];
u8 pi_tmp1[5], pi_tmp2[2];
u8 i_lfsr0_o, i_lfsr1_o;
u32 i_lfsr0, i_lfsr1;
u8 i_css_varient;
u8 pi_tmp1[5];
u8 pi_tmp2[5];
u8 i_lfsr0_o;
u8 i_lfsr1_o;
u32 i_lfsr0;
u32 i_lfsr1;
u8 i_css_varient;
int i_val = 0;
int i_term = 0;
int i, i_index;
......@@ -289,7 +329,6 @@ static void CSSCryptKey( int i_key_type, int i_varient,
}
i_css_varient = i_key_type == 0 ? i_varient
: ppi_perm_varient[i_key_type-1][i_varient];
i_css_varient = pi_css_varients[i_css_varient];
for( i=0 ; i<5 ; i++ )
{
......@@ -297,414 +336,179 @@ static void CSSCryptKey( int i_key_type, int i_varient,
}
/* In order to ensure that the LFSR works we need to ensure that the
* initial values are non-zero. Thus when we initialise them from
* the seed, we ensure that a bit is set.
*/
i_lfsr0 = ( pi_key[0] << 17 ) | ( pi_key[1] << 9 ) |
( ( pi_key[2] & ~7 ) << 1 ) | 8 | (pi_key[2] & 7);
/*
* reverse lfsr0/1 to simplify calculation in loop
*/
i_lfsr0 = ( pi_reverse[i_lfsr0 & 0xff] << 17 ) |
* initial values are non-zero. Thus when we initialise them from
* the seed, we ensure that a bit is set.
*/
i_lfsr0 = ( pi_tmp1[0] << 17 ) | ( pi_tmp1[1] << 9 ) |
( ( pi_tmp1[2] & ~7 ) << 1 ) | 8 | (pi_tmp1[2] & 7);
/*
* reverse lfsr0/1 to simplify calculation in loop
*/
i_lfsr0 = ( pi_reverse[i_lfsr0 & 0xff] << 17 ) |
( pi_reverse[( i_lfsr0 >> 8 ) & 0xff] << 9 ) |
( pi_reverse[( i_lfsr0 >> 16 ) & 0xff] << 1) |
( i_lfsr0 >> 24 );
i_lfsr1 = ( pi_reverse[pi_key[4]] << 9 ) | 0x100 |
( pi_reverse[pi_key[3]] );
i_lfsr1 = ( pi_reverse[pi_tmp1[4]] << 9 ) | 0x100 |
( pi_reverse[pi_tmp1[3]] );
for( i=0 ; i<30 ; i++ )
i_index = sizeof( pi_bits );
do
{
i_lfsr0_o = ( i_lfsr0 >> 12) ^ ( i_lfsr0 >> 4) ^
i_lfsr0_o = ( i_lfsr0 >> 12) ^ ( i_lfsr0 >> 4) ^
( i_lfsr0 >> 3) ^ i_lfsr0;
i_lfsr1_o = ( ( i_lfsr1 >> 14 ) & 7) ^ i_lfsr1;
i_lfsr1_o ^= ( i_lfsr1_o << 3 ) ^ ( i_lfsr1_o << 6 );
i_lfsr1_o = ( ( i_lfsr1 >> 14 ) & 7) ^ i_lfsr1;
i_lfsr1_o ^= ( i_lfsr1_o << 3 ) ^ ( i_lfsr1_o << 6 );
i_lfsr1 = ( i_lfsr1 >> 8) ^ ( i_lfsr1_o << 9);
i_lfsr0 = ( i_lfsr0 >> 8 ) ^ ( i_lfsr0_o << 17);
i_lfsr0_o = ~i_lfsr0_o;
i_lfsr1_o = ~i_lfsr1_o;
i_val += i_lfsr0_o + i_lfsr1_o;
pi_bits[--i_index] = i_val & 0xFF;
i_val >>= 8;
i_lfsr1 = ( i_lfsr1 >> 8) ^ ( i_lfsr1_o << 9);
i_lfsr0 = ( i_lfsr0 >> 8 ) ^ ( i_lfsr0_o << 17);
fprintf(stderr, "lfsr0=%08x lfsr1=%08x\n", i_lfsr0, i_lfsr1);
} while( i_index > 0 );
i_lfsr0_o = ~i_lfsr0_o;
i_lfsr1_o = ~i_lfsr1_o;
i_css_varient = pi_css_varients[i_css_varient];
i_val += i_lfsr0_o + i_lfsr1_o;
pi_bits[i] = i_val & 0xFF;
i_val >>= 8;
}
fprintf( stderr, "CSE : %d\n", i_css_varient );
/*
* Mangling
*/
for( i = 5, i_term = 0 ; --i >= 0 ; i_term = pi_scratch[i] )
{
i_index = pi_bits[25+i] ^ pi_scratch[i];
i_index = pi_css_mangle1[i_index] ^ i_css_varient;
pi_tmp1[i] = pi_css_mangle2[i_index] ^ i_term;
i_index = pi_bits[25+i] ^ pi_scratch[i];
i_index = pi_css_mangle1[i_index] ^ i_css_varient;
pi_tmp1[i] = pi_css_mangle2[i_index] ^ i_term;
}
pi_tmp1[4] ^= pi_tmp1[0];
for( i = 5, i_term = 0 ; --i >= 0 ; i_term = pi_tmp1[i] )
{
i_index = pi_bits[20+i] ^ pi_tmp1[i];
i_index = pi_css_mangle1[i_index] ^ i_css_varient;
pi_tmp2[i] = pi_css_mangle2[i_index] ^ i_term;
i_index = pi_bits[20+i] ^ pi_tmp1[i];
i_index = pi_css_mangle1[i_index] ^ i_css_varient;
pi_tmp2[i] = pi_css_mangle2[i_index] ^ i_term;
}
pi_tmp2[4] ^= pi_tmp2[0];
for( i = 5, i_term = 0 ; --i >= 0 ; i_term = pi_tmp2[i] )
{
i_index = pi_bits[15+i] ^ pi_tmp2[i];
i_index = pi_css_mangle1[i_index] ^ i_css_varient;
i_index = pi_css_mangle2[i_index] ^ i_term;
i_index = pi_bits[15+i] ^ pi_tmp2[i];
i_index = pi_css_mangle1[i_index] ^ i_css_varient;
i_index = pi_css_mangle2[i_index] ^ i_term;
pi_tmp1[i] = pi_css_mangle0[i_index];
}
pi_tmp1[4] ^= pi_tmp1[0];
for( i = 5, i_term = 0 ; --i >= 0 ; i_term = pi_tmp1[i] )
{
i_index = pi_bits[10+i] ^ pi_tmp1[i];
i_index = pi_css_mangle1[i_index] ^ i_css_varient;
i_index = pi_css_mangle2[i_index] ^ i_term;
i_index = pi_bits[10+i] ^ pi_tmp1[i];
i_index = pi_css_mangle1[i_index] ^ i_css_varient;
i_index = pi_css_mangle2[i_index] ^ i_term;
pi_tmp2[i] = pi_css_mangle0[i_index];
}
pi_tmp2[4] ^= pi_tmp2[0];
for( i = 5, i_term = 0 ; --i >= 0 ; i_term = pi_tmp2[i] )
{
i_index = pi_bits[5+i] ^ pi_tmp2[i];
i_index = pi_css_mangle1[i_index] ^ i_css_varient;
pi_tmp1[i] = pi_css_mangle2[i_index] ^ i_term;
i_index = pi_bits[5+i] ^ pi_tmp2[i];
i_index = pi_css_mangle1[i_index] ^ i_css_varient;
pi_tmp1[i] = pi_css_mangle2[i_index] ^ i_term;
}
pi_tmp1[4] ^= pi_tmp1[0];
for( i = 5, i_term = 0 ; --i >= 0 ; i_term = pi_tmp1[i] )
for( i=5, i_term=0 ; --i>=0 ; i_term=pi_tmp1[i] )
{
i_index = pi_bits[i] ^ pi_tmp1[i];
i_index = pi_css_mangle1[i_index] ^ i_css_varient;
pi_key[i] = pi_css_mangle2[i_index] ^ i_term;
i_index = pi_bits[i] ^ pi_tmp1[i];
i_index = pi_css_mangle1[i_index] ^ i_css_varient;
pi_key[i] = pi_css_mangle2[i_index] ^ i_term;
}
return;
}
#else
typedef struct {
uint8_t Challenge[10];
uint8_t Key1[KEY_SIZE];
uint8_t Key2[KEY_SIZE];
uint8_t KeyCheck[KEY_SIZE];
uint8_t varient;
} DiscKeys;
DiscKeys discKeys;
static void _generate_bits (u8 *output, int len, const u8 *s)
{
u32 lfsr0, lfsr1;
int val;
u8 o_lfsr0, o_lfsr1;
/* In order to ensure that the LFSR works we need to ensure that the
* initial values are non-zero. Thus when we initialise them from
* the seed, we ensure that a bit is set.
*/
lfsr0 = (s[0] << 17) | (s[1] << 9) | ((s[2] & ~7) << 1) | 8 | (s[2] & 7);
/*
reverse lfsr0/1 to simplify calculation in loop
*/
lfsr0 = (pi_reverse[lfsr0&0xff]<<17) | (pi_reverse[(lfsr0>>8)&0xff] << 9)
| (pi_reverse[(lfsr0>>16)&0xff]<<1) |(lfsr0>>24);
lfsr1 = (pi_reverse[s[4]] << 9) | 0x100 | ( pi_reverse[ s[3]] );
output++;
val = 0;
do {
o_lfsr0 = (lfsr0 >> 12) ^ (lfsr0 >> 4) ^ (lfsr0 >> 3) ^ lfsr0;
o_lfsr1 = ((lfsr1 >> 14) & 7) ^ lfsr1;
o_lfsr1 ^= (o_lfsr1 << 3) ^ (o_lfsr1 << 6);
lfsr1 = (lfsr1 >> 8) ^ (o_lfsr1 << 9);
lfsr0 = (lfsr0 >> 8) ^ (o_lfsr0 << 17);
o_lfsr0 = ~o_lfsr0;
o_lfsr1 = ~o_lfsr1;
val += o_lfsr0 + o_lfsr1;
*--output = val & 0xFF;
val >>= 8;
fprintf(stderr, "lfsr0=%08x lfsr1=%08x\n", lfsr0, lfsr1);
} while (--len > 0);
}
/**
* This encryption engine implements one of 32 variations
* one the same theme depending upon the choice in the
* varient parameter (0 - 31).
*
* The algorithm itself manipulates a 40 bit input into
* a 40 bit output.
* The parameter 'input' is 80 bits. It consists of
* the 40 bit input value that is to be encrypted followed
* by a 40 bit seed value for the pseudo random number
* generators.
**/
static inline void mangle1( u8 *bs, u8 cse, const u8 *ip, u8 *op)
{
int i, term, index;
for (i = 5, term = 0; --i >= 0; term = ip[i]) {
index = bs[i] ^ ip[i];
index = pi_css_mangle1[index] ^ cse;
op[i] = pi_css_mangle2[index] ^ term;
}
}
/**
*
**/
static inline void mangle2( u8 *bs, u8 cse, const u8 *ip, u8 *op)
{
int i, term, index;
for (i = 5, term = 0; --i >= 0; term = ip[i]) {
index = bs[i] ^ ip[i];
index = pi_css_mangle1[index] ^ cse;
index = pi_css_mangle2[index] ^ term;
op[i] = pi_css_mangle0[index];
}
}
/**
*
**/
static inline void engine (int varient, u8 const *input, u8 *output)
{
u8 cse;
u8 tmp1[5];
u8 tmp2[5];
u8 bits[30];
u8 pi_css_varients[32] =
{ 0x00, 0x01, 0x04, 0x05, 0x10, 0x11, 0x14, 0x15,
0x20, 0x21, 0x24, 0x25, 0x30, 0x31, 0x34, 0x35,
0x80, 0x81, 0x84, 0x85, 0x90, 0x91, 0x94, 0x95,
0xA0, 0xA1, 0xA4, 0xA5, 0xB0, 0xB1, 0xB4, 0xB5 };
u8 pi_css_secret[5] = { 0xE2,0xA3,0x45,0x10,0xF4 };
int i;
/* Feed the secret into the input values such that
* we alter the seed to the LFSR's used above, then
* generate the bits to play with.
*/
for (i=5; --i>=0; )
tmp1[i] = input[5+i] ^ pi_css_secret[i];
_generate_bits (&bits[29], sizeof bits, &tmp1[0]);
/* This term is used throughout the following to
* select one of 32 different variations on the
* algorithm.
*/
cse = pi_css_varients[varient];
/* Now the actual blocks doing the encryption. Each
* of these works on 40 bits at a time and are quite
* similar.
*/
mangle1( &bits[25], cse, input, tmp1);
tmp1[4] ^= tmp1[0];
mangle1( &bits[20], cse, tmp1, tmp2);
tmp2[4] ^= tmp2[0];
mangle2( &bits[15], cse, tmp2, tmp1);
tmp1[4] ^= tmp1[0];
mangle2( &bits[10], cse, tmp1, tmp2);
tmp2[4] ^= tmp2[0];
mangle1( &bits[5], cse, tmp2, tmp1);
tmp1[4] ^= tmp1[0];
mangle1( &bits[0], cse, tmp1, output);
}
/**
*
**/
void CryptKey1 (int varient, u8 const *challenge, u8 *key)
{
u8 perm_challenge[] = {1,3,0,7,5, 2,9,6,4,8};
u8 scratch[10];
int i;
for (i=9; i>=0; --i)
scratch[i] = challenge[perm_challenge[i]];
engine (varient, scratch, key);
}
/**
* This shuffles the bits in varient to make perm_varient such that
* 4 -> !3
* 3 -> 4
* varient bits: 2 -> 0 perm_varient bits
* 1 -> 2
* 0 -> !1
**/
void CryptKey2 (int varient, u8 const *challenge, u8 *key)
{
static u8 perm_challenge[] = {
0x06,0x01,0x09,0x03,0x08,0x05,0x07,0x04,
0x00,0x02
};
static u8 perm_varient[] = {
0x0a,0x08,0x0e,0x0c,0x0b,0x09,0x0f,0x0d,
0x1a,0x18,0x1e,0x1c,0x1b,0x19,0x1f,0x1d,
0x02,0x00,0x06,0x04,0x03,0x01,0x07,0x05,
0x12,0x10,0x16,0x14,0x13,0x11,0x17,0x15
};
u8 scratch[10];
int i;
for (i=9; i>=0; --i)
scratch[i] = challenge[perm_challenge[i]];
engine (perm_varient[varient], scratch, key);
}
/**
* This shuffles the bits in varient to make perm_varient such that
* 4 -> 0
* 3 -> !1
* varient bits: 2 -> !4 perm_varient bits
* 1 -> 2
* 0 -> 3
**/
void CryptBusKey (int varient, u8 const *challenge, u8 *key)
{
static u8 perm_challenge[] = {
0x04,0x00,0x03,0x05,0x07,0x02,0x08,0x06,
0x01,0x09
};
static u8 perm_varient[] = {
0x12,0x1a,0x16,0x1e,0x02,0x0a,0x06,0x0e,
0x10,0x18,0x14,0x1c,0x00,0x08,0x04,0x0c,
0x13,0x1b,0x17,0x1f,0x03,0x0b,0x07,0x0f,
0x11,0x19,0x15,0x1d,0x01,0x09,0x05,0x0d
};
u8 scratch[10];
int i;
for (i=9; i>=0; --i)
scratch[i] = challenge[perm_challenge[i]];
engine (perm_varient[varient], scratch, key);
}
static int _CSSAuthDrive (const u8 *key, DiscKeys *disc)
static int CSSAuthHost( dvd_authinfo *ai, disc_t *disc )
{
int i;
for (i=0; i<KEY_SIZE; i++)
disc->Key1[i] = key[4-i];
for (i=0; i<32; ++i) {
CryptKey1( i, disc->Challenge, disc->KeyCheck);
if (memcmp (disc->KeyCheck, disc->Key1, KEY_SIZE ) == 0) {
intf_ErrMsg( "Drive Authentic - using varient %d", i);
disc->varient = i;
return i;
}
}
intf_ErrMsg( "Drive would not Authenticate" );
return -1;
}
static int _CSSAuthHost (dvd_authinfo *ai, DiscKeys *disc)
{
int i;
switch (ai->type) {
/* Host data receive (host changes state) */
case DVD_LU_SEND_AGID:
// _CSSPrintDebug ("AGID %d\n", ai->lsa.agid);
ai->type = DVD_HOST_SEND_CHALLENGE;
break;
case DVD_LU_SEND_KEY1:
// _CSSPrintDebugBytes ("LU sent key1", ai->lsk.key, LEN_KEY);
if (_CSSAuthDrive (ai->lsk.key, disc)<0) {
ai->type = DVD_AUTH_FAILURE;
return -22;
}
ai->type = DVD_LU_SEND_CHALLENGE;
break;
case DVD_LU_SEND_CHALLENGE:
for (i = 0; i < 10; ++i)
disc->Challenge[i] = ai->hsc.chal[9-i];
// _CSSPrintDebugBytes ("LU sent challenge", ai->hsc.chal, 10);
CryptKey2 (disc->varient, disc->Challenge, disc->Key2);
ai->type = DVD_HOST_SEND_KEY2;
break;
int i;
/* Host data send */
case DVD_HOST_SEND_CHALLENGE:
for (i = 0; i < 10; ++i)
ai->hsc.chal[9-i] = disc->Challenge[i];
switch( ai->type )
{
/* Host data receive (host changes state) */
case DVD_LU_SEND_AGID:
// _CSSPrintDebug ("AGID %d\n", ai->lsa.agid);
// _CSSPrintDebugBytes ("Host sending challenge", ai->hsc.chal, 10);
ai->type = DVD_HOST_SEND_CHALLENGE;
break;
/* Returning data, let LU change state */
break;
case DVD_LU_SEND_KEY1:
// _CSSPrintDebugBytes ("LU sent key1", ai->lsk.key, LEN_KEY);
case DVD_HOST_SEND_KEY2:
for (i = 0; i < KEY_SIZE; ++i)
ai->hsk.key[4-i] = disc->Key2[i];
for( i=0; i<KEY_SIZE; i++ )
{
disc->pi_key1[i] = ai->lsk.key[4-i];
}
// _CSSPrintDebugBytes ("Host sending key 2", &disc->Key2[0], LEN_KEY);
for( i=0; i<32; ++i )
{
CSSCryptKey( 0, i, disc->pi_challenge,
disc->pi_key_check );
/* Returning data, let LU change state */
break;
if( memcmp( disc->pi_key_check,
disc->pi_key1, KEY_SIZE ) == 0 )
{
fprintf( stderr, "Drive Authentic - using varient %d\n", i);
disc->i_varient = i;
ai->type = DVD_LU_SEND_CHALLENGE;
break;
}
}
// intf_ErrMsg( "Drive would not Authenticate" );
// ai->type = DVD_AUTH_FAILURE;
// return -22;
break;
case DVD_LU_SEND_CHALLENGE:
for( i=0; i<10; ++i )
{
disc->pi_challenge[i] = ai->hsc.chal[9-i];
}
// _CSSPrintDebugBytes ("LU sent challenge", ai->hsc.chal, 10);
CSSCryptKey( 1, disc->i_varient, disc->pi_challenge,
disc->pi_key2 );
ai->type = DVD_HOST_SEND_KEY2;
break;
/* Host data send */
case DVD_HOST_SEND_CHALLENGE:
for( i=0; i<10; ++i )
{
ai->hsc.chal[9-i] = disc->pi_challenge[i];
}
// _CSSPrintDebugBytes ("Host sending challenge", ai->hsc.chal, 10);
/* Returning data, let LU change state */
break;
default:
intf_ErrMsg( "Got invalid state %d", ai->type );
case DVD_HOST_SEND_KEY2:
for( i=0; i<KEY_SIZE; ++i )
{
ai->hsk.key[4-i] = disc->pi_key2[i];
}
// _CSSPrintDebugBytes ("Host sending key 2", &disc->Key2[0], LEN_KEY);
/* Returning data, let LU change state */
break;
return -22;
}
default:
intf_ErrMsg( "Got invalid state %d", ai->type );
return -22;
}
return 0;
return 0;
}
#endif
/*****************************************************************************
* CSSCracker : title key decryption by cracking
*****************************************************************************/
......@@ -714,7 +518,11 @@ static int _CSSAuthHost (dvd_authinfo *ai, DiscKeys *disc)
static unsigned char invtab4[256];
static int CSScracker(int StartVal,unsigned char* pCrypted,unsigned char* pDecrypted,DVD40bitKey *StreamKey,DVD40bitKey *pkey)
static int CSScracker( int StartVal,
unsigned char* pCrypted,
unsigned char* pDecrypted,
DVD_key_t *StreamKey,
DVD_key_t *pkey )
{
unsigned char MyBuf[10];
unsigned int t1,t2,t3,t4,t5,t6;
......@@ -744,7 +552,7 @@ static int CSScracker(int StartVal,unsigned char* pCrypted,unsigned char* pDecry
printf( "Permutation error\n" );
exit( -1 );
}
}
}
/* initialize the inverse of table4 */
for( i = 0 ; i < 256 ; i++ )
......@@ -860,256 +668,163 @@ static int CSScracker(int StartVal,unsigned char* pCrypted,unsigned char* pDecry
css_t CSSInit( int i_fd )
{
#if 0
dvd_authinfo ai;
dvd_struct dvd;
css_t css;
dvd_authinfo auth;
int rv = -1;
int i;
css.i_fd = i_fd;
css.b_error = 0;
memset( &auth, 0, sizeof(auth) );
fprintf( stderr, "0\n" );
#if 0
if( CSSGetASF( i_fd ) )
memset( &ai, 0, sizeof(ai) );
// if (CSSGetASF (i_fd))
// return css;
/* Init sequence, request AGID */
for( i=1; (i<4)&&(rv== -1) ; ++i )
{
css.b_error = 1;
return css;
fprintf( stderr, "Request AGID [%d]...", i );
ai.type = DVD_LU_SEND_AGID;
ai.lsa.agid = 0;
rv = ioctl (i_fd, DVD_AUTH, &ai);
fprintf( stderr, "%d %d\n" , rv, ai.lsa.agid );
if (rv == -1)
{
fprintf( stderr, "N/A, invalidating" );
ai.type = DVD_INVALIDATE_AGID;
ai.lsa.agid = 0;
ioctl( i_fd, DVD_AUTH, &ai );
}
}
#endif
fprintf( stderr, "1\n" );
/* Get AGID From drive */
auth.type = DVD_LU_SEND_AGID;
auth.lsa.agid = 0;
if( ioctl( i_fd, DVD_AUTH, &auth ) < 0 )
if( rv==-1 )
{
intf_ErrMsg( "DVD ioctl error in CSSInit (AGID)" );
auth.type = DVD_INVALIDATE_AGID;
auth.lsa.agid = 0;
ioctl( i_fd, DVD_AUTH, &auth );
css.b_error = 1;
return css;
fprintf( stderr, "Cannot get AGID\n" );
}
css.i_agid = auth.lsa.agid;
fprintf( stderr, "2\n" );
/* Get drive keys */
for( i = 0 ; i < 10 ; ++i )
for( i=0 ; i<10; ++i )
{
css.keys.pi_challenge[i] = i;
// disc->Challenge[i] = i;
css.disc.pi_challenge[i] = i;
}
fprintf( stderr, "3\n" );
if( ioctl( i_fd, DVD_AUTH, &auth ) < 0 )
/* Send AGID to host */
if( CSSAuthHost(&ai, &(css.disc) )<0 )
{
intf_ErrMsg( "DVD ioctl error in CSSInit (Drive keys)" );
css.b_error = 1;
intf_ErrMsg( "CSS Error :Send AGID to host failed" );
return css;
}
fprintf( stderr, "4\n" );
if( ioctl( i_fd, DVD_AUTH, &auth ) < 0 )
/* Get challenge from host */
if( CSSAuthHost( &ai, &(css.disc) )<0)
{
intf_ErrMsg( "DVD ioctl error in CSSInit (Drive keys)" );
css.b_error = 1;
intf_ErrMsg( "CSS Error :Get challenge from host failed" );
return css;
}
fprintf( stderr, "5\n" );
css.i_agid = ai.lsa.agid;
for( i=0 ; i<KEY_SIZE ; i++ )
/* Send challenge to LU */
if( ioctl( i_fd, DVD_AUTH, &ai )<0 )
{
css.keys.pi_key1[i] = auth.lsk.key[KEY_SIZE -1 -i];
intf_ErrMsg( "CSS Error :Send challenge to LU failed ");
return css;
}
fprintf( stderr, "6\n" );
i=0;
do {
CSSCryptKey( 0, i, css.keys.pi_challenge, css.keys.pi_key_check );
i++;
intf_Msg( "Drive Authentic - using varient %d", i-1 );
} while( (i<32) &&
( memcmp( css.keys.pi_key_check, css.keys.pi_key1, KEY_SIZE ) != 0 ) );
fprintf( stderr, "1\n" );
css.keys.i_version = i-1;
auth.type = DVD_LU_SEND_CHALLENGE;
if( ioctl( i_fd, DVD_AUTH, &auth ) < 0 )
/* Get key1 from LU */
if( ioctl( i_fd, DVD_AUTH, &ai )<0)
{
intf_ErrMsg( "DVD ioctl error in CSSInit (drive Keys)" );
css.b_error = 1;
return css;
intf_ErrMsg( "CSS Error :Get key1 from LU failed ");
return css;
}
fprintf( stderr, "7\n" );
for( i = 0; i < 2*KEY_SIZE; ++i )
/* Send key1 to host */
// if (_CSSAuthHost(&ai, disc) < 0) {
if( CSSAuthHost( &ai, &(css.disc) )<0)
{
css.keys.pi_challenge[i] = auth.hsc.chal[2*KEY_SIZE -1 -i];
intf_ErrMsg( "CSS Error :Send key1 to host failed" );
return css;
}
CSSCryptKey( 1, css.keys.i_version,
css.keys.pi_challenge, css.keys.pi_key2 );
auth.type = DVD_HOST_SEND_KEY2;
for( i = 0 ; i < KEY_SIZE ; ++i )
/* Get challenge from LU */
if( ioctl( i_fd, DVD_AUTH, &ai)<0 )
{
auth.hsk.key[4-i] = css.keys.pi_key2[i];
intf_ErrMsg( "CSS Error :Get challenge from LU failed ");
return css;
}
fprintf( stderr, "8\n" );
if( ioctl( i_fd, DVD_AUTH, &auth ) < 0)
/* Send challenge to host */
if( CSSAuthHost( &ai, &(css.disc) )<0 )
{
intf_ErrMsg( "Send key2 to LU failed (expected)" );
css.b_error = 1;
intf_ErrMsg( "CSS Error :Send challenge to host failed");
return css;
}
fprintf( stderr, "9\n" );
memcpy( css.keys.pi_challenge, css.keys.pi_key1, KEY_SIZE );
memcpy( css.keys.pi_challenge+KEY_SIZE, css.keys.pi_key2, KEY_SIZE );
fprintf( stderr, "10\n" );
CSSCryptKey( 2, css.keys.i_version,
css.keys.pi_challenge, css.keys.pi_key_check );
intf_WarnMsg( 3, "DVD agid : %d", css.i_agid );
fprintf( stderr, "11\n" );
#else
DiscKeys *disc = &discKeys;
dvd_authinfo ai;
int i, agid;
dvd_struct s;
int fd=i_fd;
int tries;
int rv=-1;
css_t css;
memset (&ai, 0, sizeof (ai));
if (CSSGetASF (fd))
return css;
/* Get key2 from host */
if( CSSAuthHost( &ai, &(css.disc) )<0 )
{
intf_ErrMsg( "CSS Error :Get key2 from host failed" );
return css;
}
/* Send key2 to LU */
if( ioctl( i_fd, DVD_AUTH, &ai )<0 )
{
intf_ErrMsg( "CSS Error :Send key2 to LU failed (expected)" );
return css;
}
/* Init sequence, request AGID */
for (tries = 1; (tries < 4)&&(rv== -1) ; ++tries) {
intf_ErrMsg( "Request AGID [%d]...", tries );
ai.type = DVD_LU_SEND_AGID;
ai.lsa.agid = 0;
rv = ioctl (fd, DVD_AUTH, &ai);
if (rv == -1) {
intf_ErrMsg( "N/A, invalidating" );
ai.type = DVD_INVALIDATE_AGID;
ai.lsa.agid = 0;
ioctl (fd, DVD_AUTH, &ai);
}
}
if (rv != -1) {
intf_ErrMsg("Cannot get AGID\n");
if( ai.type == DVD_AUTH_ESTABLISHED )
{
intf_ErrMsg("CSS Error :DVD is authenticated");
}
else if( ai.type == DVD_AUTH_FAILURE )
{
intf_ErrMsg("CSS Error :DVD authentication failed");
}
for (i = 0; i < 10; ++i)
disc->Challenge[i] = i;
/* Send AGID to host */
if (_CSSAuthHost(&ai, disc) < 0) {
intf_ErrMsg("CSS Error :Send AGID to host failed\n");
return css;
}
/* Get challenge from host */
if (_CSSAuthHost(&ai, disc) < 0) {
intf_ErrMsg("CSS Error :Get challenge from host failed\n");
return css;
}
agid = ai.lsa.agid;
/* Send challenge to LU */
if (ioctl(fd, DVD_AUTH, &ai) < 0) {
intf_ErrMsg("CSS Error :Send challenge to LU failed\n");
return css;
}
/* Get key1 from LU */
if (ioctl(fd, DVD_AUTH, &ai) < 0) {
intf_ErrMsg("CSS Error :Get key1 from LU failed\n");
return css;
}
/* Send key1 to host */
if (_CSSAuthHost(&ai, disc) < 0) {
intf_ErrMsg("CSS Error :Send key1 to host failed\n");
return css;
}
/* Get challenge from LU */
if (ioctl(fd, DVD_AUTH, &ai) < 0) {
intf_ErrMsg("CSS Error :Get challenge from LU failed\n");
return css;
}
/* Send challenge to host */
if (_CSSAuthHost (&ai, disc) < 0) {
intf_ErrMsg("CSS Error :Send challenge to host failed\n");
return css;
}
/* Get key2 from host */
if (_CSSAuthHost (&ai, disc) < 0) {
intf_ErrMsg("CSS Error :Get key2 from host failed\n");
return css;
}
/* Send key2 to LU */
if (ioctl(fd, DVD_AUTH, &ai) < 0) {
intf_ErrMsg("CSS Error :Send key2 to LU failed (expected)\n");
return css;
}
if (ai.type == DVD_AUTH_ESTABLISHED)
intf_ErrMsg("CSS Error :DVD is authenticated\n");
else if (ai.type == DVD_AUTH_FAILURE)
intf_ErrMsg("CSS Error :DVD authentication failed\n");
memcpy (disc->Challenge, disc->Key1, KEY_SIZE);
memcpy (disc->Challenge+KEY_SIZE, disc->Key2, KEY_SIZE);
CryptBusKey (disc->varient, disc->Challenge, disc->KeyCheck);
memcpy( css.disc.pi_challenge, css.disc.pi_key1, KEY_SIZE );
memcpy( css.disc.pi_challenge+KEY_SIZE, css.disc.pi_key2, KEY_SIZE );
CSSCryptKey( 2, css.disc.i_varient,
css.disc.pi_challenge,
css.disc.pi_key_check );
intf_Msg( "Received Session Key\n" );
for( i=0 ; i<KEY_SIZE ; i++ )
{
intf_Msg( "%02x", &disc->KeyCheck[i] );
intf_Msg( "%02x", &(css.disc.pi_key_check[i]) );
}
intf_Msg( "\n" );
if (agid < 0)
return css;
if (CSSGetASF (fd) < 0)
return css;
s.type = DVD_STRUCT_DISCKEY;
s.disckey.agid = agid;
memset (s.disckey.value, 0, 2048);
if (ioctl(fd, DVD_READ_STRUCT, &s)<0) {
intf_ErrMsg( "Error : Could not read Disc Key" );
css.b_error = 1;
return css;
}
for (i=0; i<sizeof s.disckey.value; i++)
s.disckey.value[i] ^= disc->KeyCheck[4 - (i % KEY_SIZE)];
// _CSSPrintDebugBytes ("Received Disc Key", s.disckey.value, 10);
if( css.i_agid < 0 )
{
return css;
}
memcpy (disc->KeyCheck, s.disckey.value, 2048);
// if (CSSGetASF (i_fd) < 0)
// return css;
dvd.type = DVD_STRUCT_DISCKEY;
dvd.disckey.agid = css.i_agid;
memset( dvd.disckey.value, 0, 2048 );
if (CSSGetASF (fd) < 0)
if( ioctl( i_fd, DVD_READ_STRUCT, &dvd )<0 )
{
fprintf( stderr, "Error : Could not read Disc Key" );
css.b_error = 1;
return css;
return css;
}
#endif
for (i=0; i<sizeof dvd.disckey.value; i++)
{
dvd.disckey.value[i] ^= css.disc.pi_key_check[4 - (i % KEY_SIZE)];
}
// _CSSPrintDebugBytes ("Received Disc Key", s.disckey.value, 10);
memcpy( css.disc.pi_key_check, dvd.disckey.value, 2048 );
//
// if (CSSGetASF (i_fd) < 0)
// {
// css.b_error = 1;
// return css;
// }
return css;
}
......@@ -1119,9 +834,8 @@ fprintf( stderr, "11\n" );
* the title keys.
* The DVD should have been opened before.
*****************************************************************************/
#define MaxKeys 1000
#define REPEAT 20
struct
{
int verbosity ; /* 0-9 */
......@@ -1133,7 +847,7 @@ struct
typedef struct
{
int occ;
DVD40bitKey key;
DVD_key_t key;
} KeyOcc;
......@@ -1207,233 +921,209 @@ int CSSGetKeys( css_t * p_css )
return 1;
}
#else
#endif
#if 1
/*
* Cracking method from Ethan Hawke.
* Does not use key tables and ioctls.
*/
FILE* in;
unsigned char buf[0x800] ;
DVD40bitKey MyKey ;
int pos ;
int BytesRead ;
int BestPLen ;
int BestP ;
int i,j,k ;
int encrypted=0 ;
int filsize ;
KeyOcc PosKey[MaxKeys] ;
int RegisteredKeys = 0 ;
int TotalKeysFound = 0 ;
int StopScanning = 0 ;
int highest=0 ;
if( (in = fopen( "/dvd/video_ts/vts_01_1.vob", "rb") ) )
{
fprintf( stderr, "CSS:File opened\n" );
pos = 0;
fseek(in,0,SEEK_END);
filsize = ftell(in);
fseek(in,0,SEEK_SET);
do
{
if (params.verbosity >= 1 && filsize > 1024*1024)
{
fprintf(stderr, "%.2f of file read, %i keys found...\r",
pos*100.0/filsize,
TotalKeysFound);
}
BytesRead = fread(buf,1,0x800,in);
if (buf[0x14] & 0x30) // PES_scrambling_control
{
encrypted = 1;
BestPLen = 0;
BestP = 0;
for(i=2;i<0x30;i++)
{
for(j=i; (j < 0x80) && (buf[0x7F - (j%i)] == buf[0x7F-j]); j++);
if ((j>BestPLen) && (j>i))
{
BestPLen = j;
BestP = i;
}
}
if ((BestPLen > 20) && (BestPLen / BestP >= 2))
{
i = CSScracker(0,&buf[0x80],&buf[0x80-(BestPLen/BestP)*BestP],(DVD40bitKey*)&buf[0x54],&MyKey);
while (i>=0)
{
k = 0;
for(j=0;j<RegisteredKeys;j++)
{
if (memcmp(&(PosKey[j].key),&MyKey,sizeof(DVD40bitKey))==0)
{
PosKey[j].occ++ ;
TotalKeysFound++ ;
k = 1 ;
}
}
if (k==0)
{
memcpy(&(PosKey[RegisteredKeys].key), &MyKey, sizeof(DVD40bitKey)) ;
PosKey[RegisteredKeys++].occ = 1 ;
TotalKeysFound++ ;
}
if (params.verbosity >= 2)
{
fprintf(stderr, "\nOfs:%08X - Key: %02X %02X %02X %02X %02X\n",
pos, MyKey[0] ,MyKey[1], MyKey[2],
MyKey[3], MyKey[4]) ;
}
i = CSScracker(i,&buf[0x80],&buf[0x80-(BestPLen/BestP)*BestP],(DVD40bitKey*)&buf[0x54],&MyKey);
}
if (params.scanall==0 && RegisteredKeys==1 && PosKey[0].occ >= params.repetitions)
{
StopScanning = 1;
}
}
}
pos += BytesRead;
} while (BytesRead==0x800 && !StopScanning);
fclose(in);
if (params.verbosity >= 1 && StopScanning)
{
fprintf(stderr, "Found enough occurancies of the same key. Scan stopped.");
}
if (params.verbosity >= 1)
{
fprintf(stderr, "\n\n") ;
}
}
else
{
fprintf(stderr, "FILE ERROR: File could not be opened. [Check if file is readable]\n");
return(1);
}
if (!encrypted)
{
fprintf(stderr, "This file was _NOT_ encrypted!\n");
return(0);
}
if (encrypted && RegisteredKeys==0)
{
fprintf(stderr, "Sorry... Unable to determine keys from file.\n");
return(1);
}
for(i=0;i<RegisteredKeys-1;i++)
{
for(j=i+1;j<RegisteredKeys;j++)
{
if (PosKey[j].occ>PosKey[i].occ)
{
memcpy(&MyKey,&(PosKey[j].key),sizeof(DVD40bitKey));
k = PosKey[j].occ;
memcpy(&(PosKey[j].key),&(PosKey[i].key),sizeof(DVD40bitKey));
PosKey[j].occ = PosKey[i].occ;
memcpy(&(PosKey[i].key),&MyKey,sizeof(DVD40bitKey));
PosKey[i].occ = k;
}
}
}
if (params.verbosity >= 1)
{
fprintf(stderr, " Key(s) & key probability\n--------------------------\n");
highest=0 ;
for(i=0; i<RegisteredKeys; i++)
{
fprintf(stderr, "%d) %02X %02X %02X %02X %02X - %3.2f%%\n", i,
PosKey[i].key[0],PosKey[i].key[1],PosKey[i].key[2],
PosKey[i].key[3],PosKey[i].key[4],
PosKey[i].occ*100.0/TotalKeysFound) ;
if (PosKey[highest].occ*100.0/TotalKeysFound
<= PosKey[i].occ*100.0/TotalKeysFound)
{
highest=i ;
}
}
fprintf(stderr, "\n");
}
/* The "find the key with the highest probability" code
is untested, as I haven't been able to find a VOB that
produces multiple keys (RT)
*/
printf("%02X %02X %02X %02X %02X\n",
PosKey[highest].key[0],PosKey[highest].key[1],PosKey[highest].key[2],
PosKey[highest].key[3],PosKey[highest].key[4]) ;
for( i=0 ; i<5 ; i++ )
u8 pi_buf[0x800] ;
DVD_key_t my_key;
title_key_t title_key[MaxKeys] ;
int i_title;
int i_pos = 0;
int i_bytes_read;
int i_best_plen;
int i_best_p;
int i,j,k;
int i_registered_keys = 0 ;
int i_total_keys_found = 0 ;
int i_highest=0 ;
boolean_t b_encrypted = 0;
boolean_t b_stop_scanning = 0 ;
int i_fd = p_css->i_fd;
for( i_title=0 ; i_title<1/*p_css->i_title_nb*/ ; i_title++ )
{
// p_css->p_title_key->key[i] = PosKey[highest].key[i];
i_pos = p_css->p_title_key[i_title].i;
// FIXME : Ugly Kludge
#if 1
i_fd = open( "/dvd/video_ts/vts_01_1.vob", O_RDONLY|O_NONBLOCK);
fprintf( stderr, "CSS:File opened\n" );
i_pos = 0;
#endif
do
{
i_pos = lseek64( i_fd, i_pos, SEEK_SET );
i_bytes_read = read( i_fd, pi_buf, 0x800 );
if( pi_buf[0x14] & 0x30 ) // PES_scrambling_control
{
b_encrypted = 1;
i_best_plen = 0;
i_best_p = 0;
for( i=2 ; i<0x30 ; i++ )
{
for( j=i ; (j<0x80) &&
(pi_buf[0x7F - (j%i)] == pi_buf[0x7F-j]) ; j++ );
if( (j>i_best_plen) && (j>i) )
{
i_best_plen = j;
i_best_p = i;
}
}
if( (i_best_plen>20) && (i_best_plen / i_best_p >= 2) )
{
i = CSScracker( 0, &pi_buf[0x80],
&pi_buf[0x80 - ( i_best_plen / i_best_p) *i_best_p],
(DVD_key_t*)&pi_buf[0x54],
&my_key );
while( i>=0 )
{
k = 0;
for( j=0 ; j<i_registered_keys ; j++ )
{
if( memcmp( &(title_key[j].key),
&my_key, sizeof(DVD_key_t) ) == 0 )
{
title_key[j].i++;
i_total_keys_found++;
k = 1;
}
}
if( k == 0 )
{
memcpy( &( title_key[i_registered_keys].key),
&my_key,
sizeof(DVD_key_t) );
title_key[i_registered_keys++].i = 1;
i_total_keys_found++;
}
fprintf(stderr, "\nOfs:%08X - Key: %02X %02X %02X %02X %02X\n",
i_pos, my_key[0], my_key[1], my_key[2],
my_key[3], my_key[4] );
i = CSScracker( i, &pi_buf[0x80],
&pi_buf[0x80 -( i_best_plen / i_best_p) *i_best_p],
(DVD_key_t*)&pi_buf[0x54], &my_key);
}
if( i_registered_keys == 1 && title_key[0].i >= REPEAT )
{
b_stop_scanning = 1;
}
}
}
i_pos += i_bytes_read;
} while( i_bytes_read == 0x800 && !b_stop_scanning);
if( b_stop_scanning)
{
fprintf( stderr,
"Found enough occurancies of the same key. Scan stopped.\n" );
}
if( !b_encrypted )
{
fprintf(stderr, "This file was _NOT_ encrypted!\n");
return(0);
}
if( b_encrypted && i_registered_keys == 0 )
{
fprintf(stderr, "Sorry... Unable to determine keys from file.\n");
return(1);
}
for( i=0 ; i<i_registered_keys-1 ; i++ )
{
for( j=i+1 ; j<i_registered_keys ; j++ )
{
if( title_key[j].i > title_key[i].i )
{
memcpy( &my_key, &(title_key[j].key), sizeof(DVD_key_t) );
k = title_key[j].i;
memcpy( &(title_key[j].key),
&(title_key[i].key), sizeof(DVD_key_t) );
title_key[j].i = title_key[i].i;
memcpy( &(title_key[i].key),&my_key, sizeof(DVD_key_t) );
title_key[i].i = k;
}
}
}
fprintf(stderr, " Key(s) & key probability\n---------------------\n");
i_highest = 0;
for( i=0 ; i<i_registered_keys ; i++ )
{
fprintf(stderr, "%d) %02X %02X %02X %02X %02X - %3.2f%%\n", i,
title_key[i].key[0], title_key[i].key[1],
title_key[i].key[2], title_key[i].key[3],
title_key[i].key[4],
title_key[i].i * 100.0 / i_total_keys_found );
if( title_key[i_highest].i * 100.0 / i_total_keys_found
<= title_key[i].i*100.0 / i_total_keys_found )
{
i_highest = i;
}
}
fprintf(stderr, "\n");
/* The "find the key with the highest probability" code
* is untested, as I haven't been able to find a VOB that
* produces multiple keys (RT)
*/
printf( "%02X %02X %02X %02X %02X\n",
title_key[i_highest].key[0],
title_key[i_highest].key[1],
title_key[i_highest].key[2],
title_key[i_highest].key[3],
title_key[i_highest].key[4] );
memcpy( p_css->p_title_key[i_title].key,
title_key[i_highest].key, KEY_SIZE );
}
#endif
return 0;
}
/*****************************************************************************
* CSSDescrambleSector
* ---
* sec : sector to descramble
* key : title key for this sector
*****************************************************************************/
int CSSDescrambleSector( DVD40bitKey* key, unsigned char * sec )
int CSSDescrambleSector( DVD_key_t* key, u8* pi_sec )
{
#if 0
FILE *in,*out ;
unsigned char buf[0x800] ;
int pos ;
int BytesRead ;
int BytesWritten ;
int filsize ;
do {
BytesRead = fread(&buf,1,0x800,in);
if (buf[0x14] & 0x30) // PES_scrambling_control
unsigned int i_t1, i_t2, i_t3, i_t4, i_t5, i_t6;
u8* pi_end = pi_sec + 0x800;
if( pi_sec[0x14] & 0x30) // PES_scrambling_control
{
unsigned int t1,t2,t3,t4,t5,t6;
unsigned char *end=sec+0x800;
t1=((*key)[0] ^ sec[0x54]) | 0x100;
t2=(*key)[1] ^ sec[0x55];
t3= (((*key)[2]) | ((*key)[3]<<8) |
((*key)[4]<<16)) ^ ((sec[0x56]) |
(sec[0x57]<<8) | (sec[0x58]<<16));
t4=t3&7;
t3=t3*2+8-t4;
sec+=0x80;
t5=0;
while(sec!=end)
i_t1 = ((*key)[0] ^ pi_sec[0x54]) | 0x100;
i_t2 = (*key)[1] ^ pi_sec[0x55];
i_t3 = (((*key)[2]) | ((*key)[3] << 8) |
((*key)[4] << 16)) ^ ((pi_sec[0x56]) |
(pi_sec[0x57] << 8) | (pi_sec[0x58] << 16));
i_t4 = i_t3 & 7;
i_t3 = i_t3 * 2 + 8 - i_t4;
pi_sec += 0x80;
i_t5 = 0;
while( pi_sec != pi_end )
{
t4 = pi_css_tab2[t2] ^ pi_css_tab3[t1];
t2=t1>>1;
t1=((t1&1)<<8)^t4;
t4 = pi_css_tab5[t4];
t6=(((((((t3>>3)^t3)>>1)^t3)>>8)^t3)>>5)&0xff;
t3=(t3<<8)|t6;
t6 = pi_css_tab4[t6];
t5+=t6+t4;
*sec++= pi_css_tab1[*sec]^(t5&0xff);
t5>>=8;
i_t4 = pi_css_tab2[i_t2] ^ pi_css_tab3[i_t1];
i_t2 = i_t1>>1;
i_t1 = ( ( i_t1 & 1 ) << 8 ) ^ i_t4;
i_t4 = pi_css_tab5[i_t4];
i_t6 = ((((((( i_t3 >> 3 ) ^ i_t3 ) >> 1 ) ^
i_t3 ) >> 8 ) ^ i_t3 ) >> 5) & 0xff;
i_t3 = (i_t3 << 8 ) | i_t6;
i_t6 = pi_css_tab4[i_t6];
i_t5 += i_t6 + i_t4;
*pi_sec++ = pi_css_tab1[*pi_sec] ^( i_t5 & 0xff );
i_t5 >>= 8;
}
buf[0x14] &= 0x8F;
pi_sec[0x14] &= 0x8F;
}
BytesWritten = fwrite(&buf,1,BytesRead,out);
if (BytesWritten!=BytesRead)
{
fprintf(stderr, "Could not write to output file.\n");
return(1);
}
pos += BytesRead;
} while (BytesRead==0x800);
#endif
return(0);
return(0);
}
src/input/dvd_css.h
View file @ 32e82c69
......@@ -21,21 +21,24 @@
*****************************************************************************/
#define KEY_SIZE 5
typedef unsigned char DVD40bitKey[KEY_SIZE];
typedef u8 DVD_key_t[KEY_SIZE];
typedef struct drive_key_s
typedef struct disc_s
{
u8 pi_challenge[2*KEY_SIZE];
u8 pi_key1[KEY_SIZE];
u8 pi_key2[KEY_SIZE];
u8 pi_key_check[KEY_SIZE];
u8 i_version;
} drive_key_t;
u8 i_varient;
} disc_t;
typedef struct title_key_s
{
u32 i_lba;
u8 key[KEY_SIZE];
u32 i; /* This signification of this parameter
depends on the function it is called from :
*from DVDInit -> i == i_lba
*from CSSGetKeys -> i == i_occ */
DVD_key_t key;
} title_key_t;
typedef struct css_s
......@@ -43,7 +46,7 @@ typedef struct css_s
int i_fd;
boolean_t b_error;
int i_agid;
drive_key_t keys;
disc_t disc;
u8 pi_disc_key[2048];
int i_title_nb;
title_key_t* p_title_key;
......
src/input/input_dvd.c
View file @ 32e82c69
......@@ -2,7 +2,7 @@
* input_dvd.c: DVD reading
*****************************************************************************
* Copyright (C) 1998-2001 VideoLAN
* $Id: input_dvd.c,v 1.4 2001/01/20 20:59:44 stef Exp $
* $Id: input_dvd.c,v 1.5 2001/01/21 09:20:27 stef Exp $
*
* Author: Stphane Borel <stef@via.ecp.fr>
*
......@@ -114,6 +114,7 @@ static void DVDInit( input_thread_t * p_input )
{
thread_dvd_data_t * p_method;
off64_t i_start;
int i;
if( (p_method = malloc( sizeof(thread_dvd_data_t) )) == NULL )
{
......@@ -140,21 +141,24 @@ static void DVDInit( input_thread_t * p_input )
fprintf(stderr, " CSS Init start\n" );
p_method->css = CSSInit( p_input->i_handle );
fprintf(stderr, " CSS Init end\n" );
p_method->css.i_title_nb = 1/*p_method->ifo.vmg.ptt_srpt.i_nb*/;
#if 0
if( (p_title_key =
malloc( p_method->css.i_title_nb *sizeof(title_key_t) )) == NULL )
p_method->css.i_title_nb = p_method->ifo.vmg.mat.i_tts_nb;
if( (p_method->css.p_title_key =
malloc( p_method->css.i_title_nb *
sizeof(p_method->css.p_title_key) ) ) == NULL )
{
intf_ErrMsg( "Out of memory" );
p_input->b_error = 1;
return;
}
#endif
for( i=0 ; i<p_method->css.i_title_nb ; i++ )
{
p_method->css.p_title_key[i].i =
p_method->ifo.p_vts[i].i_pos +
p_method->ifo.p_vts[i].mat.i_tt_vobs_ssector *DVD_LB_SIZE;
}
fprintf(stderr, " CSS Get start\n" );
CSSGetKeys( &(p_method->css) );
fprintf(stderr, " CSS Get end\n" );
}
i_start = p_method->ifo.p_vts[0].i_pos +
......@@ -162,6 +166,7 @@ fprintf(stderr, " CSS Get end\n" );
i_start = lseek64( p_input->i_handle, i_start, SEEK_SET );
fprintf(stderr, "Begin at : %lld\n", (long long)i_start );
#if 1
input_InitStream( p_input, sizeof( stream_ps_data_t ) );
input_AddProgram( p_input, 0, sizeof( stream_ps_data_t ) );
......@@ -308,7 +313,16 @@ static __inline__ int SafeRead( input_thread_t * p_input, byte_t * p_buffer,
int i_nb;
p_method = (thread_dvd_data_t *)p_input->p_plugin_data;
i_nb = read( p_input->i_handle, p_buffer, i_len );
// if( !p_method->b_encrypted )
// {
i_nb = read( p_input->i_handle, p_buffer, i_len );
#if 0
}
else
{
i_nb = read( p_input->i_handle, p_buffer, 4096 );
CSSDescrambleSector( p_method->css.p_title_key.key, p_buffer );
}
switch( i_nb )
{
case 0:
......@@ -320,14 +334,10 @@ static __inline__ int SafeRead( input_thread_t * p_input, byte_t * p_buffer,
default:
break;
}
#if 0
if( p_method->b_encrypted )
{
CSSDescrambleSector( p_method->css.p_title_key.key, p_buffer );
}
#endif
vlc_mutex_lock( &p_input->stream.stream_lock );
p_input->stream.i_tell += i_nb;
p_input->stream.i_tell += i_nb; //lseek64( p_input->i_handle,
// p_input->stream.i_tell+i_len, SEEK_SET );
vlc_mutex_unlock( &p_input->stream.stream_lock );
return( 0 );
}
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment