--- /dev/null
+/*****************************************************************************
+ * css_table.h : Various tables needed by css unencryption
+ *****************************************************************************
+ * Copyright (C) 1999-2001 VideoLAN
+ *
+ * Author: Stéphane Borel <stef@via.ecp.fr>
+ *
+ * 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.
+ *****************************************************************************/
+u8 pi_css_mangle0[256] = {
+0x00,0x81,0x03,0x82,0x06,0x87,0x05,0x84,0x0C,0x8D,0x0F,0x8E,0x0A,0x8B,0x09,0x88,
+0x18,0x99,0x1B,0x9A,0x1E,0x9F,0x1D,0x9C,0x14,0x95,0x17,0x96,0x12,0x93,0x11,0x90,
+0x30,0xB1,0x33,0xB2,0x36,0xB7,0x35,0xB4,0x3C,0xBD,0x3F,0xBE,0x3A,0xBB,0x39,0xB8,
+0x28,0xA9,0x2B,0xAA,0x2E,0xAF,0x2D,0xAC,0x24,0xA5,0x27,0xA6,0x22,0xA3,0x21,0xA0,
+0x60,0xE1,0x63,0xE2,0x66,0xE7,0x65,0xE4,0x6C,0xED,0x6F,0xEE,0x6A,0xEB,0x69,0xE8,
+0x78,0xF9,0x7B,0xFA,0x7E,0xFF,0x7D,0xFC,0x74,0xF5,0x77,0xF6,0x72,0xF3,0x71,0xF0,
+0x50,0xD1,0x53,0xD2,0x56,0xD7,0x55,0xD4,0x5C,0xDD,0x5F,0xDE,0x5A,0xDB,0x59,0xD8,
+0x48,0xC9,0x4B,0xCA,0x4E,0xCF,0x4D,0xCC,0x44,0xC5,0x47,0xC6,0x42,0xC3,0x41,0xC0,
+0xC0,0x41,0xC3,0x42,0xC6,0x47,0xC5,0x44,0xCC,0x4D,0xCF,0x4E,0xCA,0x4B,0xC9,0x48,
+0xD8,0x59,0xDB,0x5A,0xDE,0x5F,0xDD,0x5C,0xD4,0x55,0xD7,0x56,0xD2,0x53,0xD1,0x50,
+0xF0,0x71,0xF3,0x72,0xF6,0x77,0xF5,0x74,0xFC,0x7D,0xFF,0x7E,0xFA,0x7B,0xF9,0x78,
+0xE8,0x69,0xEB,0x6A,0xEE,0x6F,0xED,0x6C,0xE4,0x65,0xE7,0x66,0xE2,0x63,0xE1,0x60,
+0xA0,0x21,0xA3,0x22,0xA6,0x27,0xA5,0x24,0xAC,0x2D,0xAF,0x2E,0xAA,0x2B,0xA9,0x28,
+0xB8,0x39,0xBB,0x3A,0xBE,0x3F,0xBD,0x3C,0xB4,0x35,0xB7,0x36,0xB2,0x33,0xB1,0x30,
+0x90,0x11,0x93,0x12,0x96,0x17,0x95,0x14,0x9C,0x1D,0x9F,0x1E,0x9A,0x1B,0x99,0x18,
+0x88,0x09,0x8B,0x0A,0x8E,0x0F,0x8D,0x0C,0x84,0x05,0x87,0x06,0x82,0x03,0x81,0x00
+};
+
+u8 pi_css_mangle1[256] = {
+0xC4,0xCD,0xCE,0xCB,0xC8,0xC9,0xCA,0xCF,0xCC,0xC5,0xC6,0xC3,0xC0,0xC1,0xC2,0xC7,
+0x14,0x1D,0x1E,0x1B,0x18,0x19,0x1A,0x1F,0x1C,0x15,0x16,0x13,0x10,0x11,0x12,0x17,
+0x24,0x2D,0x2E,0x2B,0x28,0x29,0x2A,0x2F,0x2C,0x25,0x26,0x23,0x20,0x21,0x22,0x27,
+0x34,0x3D,0x3E,0x3B,0x38,0x39,0x3A,0x3F,0x3C,0x35,0x36,0x33,0x30,0x31,0x32,0x37,
+0x04,0x0D,0x0E,0x0B,0x08,0x09,0x0A,0x0F,0x0C,0x05,0x06,0x03,0x00,0x01,0x02,0x07,
+0xD4,0xDD,0xDE,0xDB,0xD8,0xD9,0xDA,0xDF,0xDC,0xD5,0xD6,0xD3,0xD0,0xD1,0xD2,0xD7,
+0xE4,0xED,0xEE,0xEB,0xE8,0xE9,0xEA,0xEF,0xEC,0xE5,0xE6,0xE3,0xE0,0xE1,0xE2,0xE7,
+0xF4,0xFD,0xFE,0xFB,0xF8,0xF9,0xFA,0xFF,0xFC,0xF5,0xF6,0xF3,0xF0,0xF1,0xF2,0xF7,
+0x44,0x4D,0x4E,0x4B,0x48,0x49,0x4A,0x4F,0x4C,0x45,0x46,0x43,0x40,0x41,0x42,0x47,
+0x94,0x9D,0x9E,0x9B,0x98,0x99,0x9A,0x9F,0x9C,0x95,0x96,0x93,0x90,0x91,0x92,0x97,
+0xA4,0xAD,0xAE,0xAB,0xA8,0xA9,0xAA,0xAF,0xAC,0xA5,0xA6,0xA3,0xA0,0xA1,0xA2,0xA7,
+0xB4,0xBD,0xBE,0xBB,0xB8,0xB9,0xBA,0xBF,0xBC,0xB5,0xB6,0xB3,0xB0,0xB1,0xB2,0xB7,
+0x84,0x8D,0x8E,0x8B,0x88,0x89,0x8A,0x8F,0x8C,0x85,0x86,0x83,0x80,0x81,0x82,0x87,
+0x54,0x5D,0x5E,0x5B,0x58,0x59,0x5A,0x5F,0x5C,0x55,0x56,0x53,0x50,0x51,0x52,0x57,
+0x64,0x6D,0x6E,0x6B,0x68,0x69,0x6A,0x6F,0x6C,0x65,0x66,0x63,0x60,0x61,0x62,0x67,
+0x74,0x7D,0x7E,0x7B,0x78,0x79,0x7A,0x7F,0x7C,0x75,0x76,0x73,0x70,0x71,0x72,0x77
+};
+
+u8 pi_css_mangle2[256] = {
+0xC4,0x24,0x14,0x34,0xCE,0x2E,0x1E,0x3E,0xCD,0x2D,0x1D,0x3D,0xCB,0x2B,0x1B,0x3B,
+0x44,0xA4,0x94,0xB4,0x4E,0xAE,0x9E,0xBE,0x4D,0xAD,0x9D,0xBD,0x4B,0xAB,0x9B,0xBB,
+0x04,0xE4,0xD4,0xF4,0x0E,0xEE,0xDE,0xFE,0x0D,0xED,0xDD,0xFD,0x0B,0xEB,0xDB,0xFB,
+0x84,0x64,0x54,0x74,0x8E,0x6E,0x5E,0x7E,0x8D,0x6D,0x5D,0x7D,0x8B,0x6B,0x5B,0x7B,
+0xCC,0x2C,0x1C,0x3C,0xC6,0x26,0x16,0x36,0xC5,0x25,0x15,0x35,0xC3,0x23,0x13,0x33,
+0x4C,0xAC,0x9C,0xBC,0x46,0xA6,0x96,0xB6,0x45,0xA5,0x95,0xB5,0x43,0xA3,0x93,0xB3,
+0x0C,0xEC,0xDC,0xFC,0x06,0xE6,0xD6,0xF6,0x05,0xE5,0xD5,0xF5,0x03,0xE3,0xD3,0xF3,
+0x8C,0x6C,0x5C,0x7C,0x86,0x66,0x56,0x76,0x85,0x65,0x55,0x75,0x83,0x63,0x53,0x73,
+0xC8,0x28,0x18,0x38,0xCA,0x2A,0x1A,0x3A,0xC9,0x29,0x19,0x39,0xCF,0x2F,0x1F,0x3F,
+0x48,0xA8,0x98,0xB8,0x4A,0xAA,0x9A,0xBA,0x49,0xA9,0x99,0xB9,0x4F,0xAF,0x9F,0xBF,
+0x08,0xE8,0xD8,0xF8,0x0A,0xEA,0xDA,0xFA,0x09,0xE9,0xD9,0xF9,0x0F,0xEF,0xDF,0xFF,
+0x88,0x68,0x58,0x78,0x8A,0x6A,0x5A,0x7A,0x89,0x69,0x59,0x79,0x8F,0x6F,0x5F,0x7F,
+0xC0,0x20,0x10,0x30,0xC2,0x22,0x12,0x32,0xC1,0x21,0x11,0x31,0xC7,0x27,0x17,0x37,
+0x40,0xA0,0x90,0xB0,0x42,0xA2,0x92,0xB2,0x41,0xA1,0x91,0xB1,0x47,0xA7,0x97,0xB7,
+0x00,0xE0,0xD0,0xF0,0x02,0xE2,0xD2,0xF2,0x01,0xE1,0xD1,0xF1,0x07,0xE7,0xD7,0xF7,
+0x80,0x60,0x50,0x70,0x82,0x62,0x52,0x72,0x81,0x61,0x51,0x71,0x87,0x67,0x57,0x77
+};
+
+u8 pi_reverse[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
+};
+
--- /dev/null
+/*****************************************************************************
+ * dvd_css.c: Functions for DVD authentification and unscrambling
+ *****************************************************************************
+ * Copyright (C) 1999-2001 VideoLAN
+ *
+ * Author: Stéphane Borel <stef@via.ecp.fr>
+ *
+ * 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.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <malloc.h>
+#include <netinet/in.h>
+#include <sys/ioctl.h>
+//#if defined(__NetBSD__) || defined(__OpenBSD__)
+//# include <sys/dvdio.h>
+//#elif defined(__linux__)
+#include <linux/cdrom.h>
+//#else
+//# error "Need the DVD ioctls"
+//#endif
+
+
+#include "common.h"
+
+#include "intf_msg.h"
+#include "dvd_css.h"
+#include "css_table.h"
+
+/*****************************************************************************
+ * CSS tables
+ *****************************************************************************/
+
+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,
+ 0x3e, 0x7e, 0x36, 0x2b, 0x6e, 0x2e, 0x66, 0x7b,
+ 0xd3, 0x93, 0xdb, 0x06, 0x43, 0x03, 0x4b, 0x96,
+ 0xde, 0x9e, 0xd6, 0x0b, 0x4e, 0x0e, 0x46, 0x9b,
+ 0x57, 0x17, 0x5f, 0x82, 0xc7, 0x87, 0xcf, 0x12,
+ 0x5a, 0x1a, 0x52, 0x8f, 0xca, 0x8a, 0xc2, 0x1f,
+ 0xd9, 0x99, 0xd1, 0x00, 0x49, 0x09, 0x41, 0x90,
+ 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,
+ 0xdc, 0x9c, 0xd4, 0x05, 0x4c, 0x0c, 0x44, 0x95,
+ 0x59, 0x19, 0x51, 0x80, 0xc9, 0x89, 0xc1, 0x10,
+ 0x58, 0x18, 0x50, 0x81, 0xc8, 0x88, 0xc0, 0x11,
+ 0xd7, 0x97, 0xdf, 0x02, 0x47, 0x07, 0x4f, 0x92,
+ 0xda, 0x9a, 0xd2, 0x0f, 0x4a, 0x0a, 0x42, 0x9f,
+ 0x53, 0x13, 0x5b, 0x86, 0xc3, 0x83, 0xcb, 0x16,
+ 0x5e, 0x1e, 0x56, 0x8b, 0xce, 0x8e, 0xc6, 0x1b,
+ 0xb3, 0xf3, 0xbb, 0xa6, 0xe3, 0xa3, 0xeb, 0xf6,
+ 0xbe, 0xfe, 0xb6, 0xab, 0xee, 0xae, 0xe6, 0xfb,
+ 0x37, 0x77, 0x3f, 0x22, 0x67, 0x27, 0x6f, 0x72,
+ 0x3a, 0x7a, 0x32, 0x2f, 0x6a, 0x2a, 0x62, 0x7f,
+ 0xb9, 0xf9, 0xb1, 0xa0, 0xe9, 0xa9, 0xe1, 0xf0,
+ 0xb8, 0xf8, 0xb0, 0xa1, 0xe8, 0xa8, 0xe0, 0xf1,
+ 0x5d, 0x1d, 0x55, 0x84, 0xcd, 0x8d, 0xc5, 0x14,
+ 0x5c, 0x1c, 0x54, 0x85, 0xcc, 0x8c, 0xc4, 0x15,
+ 0xbd, 0xfd, 0xb5, 0xa4, 0xed, 0xad, 0xe5, 0xf4,
+ 0xbc, 0xfc, 0xb4, 0xa5, 0xec, 0xac, 0xe4, 0xf5,
+ 0x39, 0x79, 0x31, 0x20, 0x69, 0x29, 0x61, 0x70,
+ 0x38, 0x78, 0x30, 0x21, 0x68, 0x28, 0x60, 0x71,
+ 0xb7, 0xf7, 0xbf, 0xa2, 0xe7, 0xa7, 0xef, 0xf2,
+ 0xba, 0xfa, 0xb2, 0xaf, 0xea, 0xaa, 0xe2, 0xff };
+
+unsigned char pi_css_tab2[256]=
+{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x09, 0x08, 0x0b, 0x0a, 0x0d, 0x0c, 0x0f, 0x0e,
+ 0x12, 0x13, 0x10, 0x11, 0x16, 0x17, 0x14, 0x15,
+ 0x1b, 0x1a, 0x19, 0x18, 0x1f, 0x1e, 0x1d, 0x1c,
+ 0x24, 0x25, 0x26, 0x27, 0x20, 0x21, 0x22, 0x23,
+ 0x2d, 0x2c, 0x2f, 0x2e, 0x29, 0x28, 0x2b, 0x2a,
+ 0x36, 0x37, 0x34, 0x35, 0x32, 0x33, 0x30, 0x31,
+ 0x3f, 0x3e, 0x3d, 0x3c, 0x3b, 0x3a, 0x39, 0x38,
+ 0x49, 0x48, 0x4b, 0x4a, 0x4d, 0x4c, 0x4f, 0x4e,
+ 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
+ 0x5b, 0x5a, 0x59, 0x58, 0x5f, 0x5e, 0x5d, 0x5c,
+ 0x52, 0x53, 0x50, 0x51, 0x56, 0x57, 0x54, 0x55,
+ 0x6d, 0x6c, 0x6f, 0x6e, 0x69, 0x68, 0x6b, 0x6a,
+ 0x64, 0x65, 0x66, 0x67, 0x60, 0x61, 0x62, 0x63,
+ 0x7f, 0x7e, 0x7d, 0x7c, 0x7b, 0x7a, 0x79, 0x78,
+ 0x76, 0x77, 0x74, 0x75, 0x72, 0x73, 0x70, 0x71,
+ 0x92, 0x93, 0x90, 0x91, 0x96, 0x97, 0x94, 0x95,
+ 0x9b, 0x9a, 0x99, 0x98, 0x9f, 0x9e, 0x9d, 0x9c,
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x89, 0x88, 0x8b, 0x8a, 0x8d, 0x8c, 0x8f, 0x8e,
+ 0xb6, 0xb7, 0xb4, 0xb5, 0xb2, 0xb3, 0xb0, 0xb1,
+ 0xbf, 0xbe, 0xbd, 0xbc, 0xbb, 0xba, 0xb9, 0xb8,
+ 0xa4, 0xa5, 0xa6, 0xa7, 0xa0, 0xa1, 0xa2, 0xa3,
+ 0xad, 0xac, 0xaf, 0xae, 0xa9, 0xa8, 0xab, 0xaa,
+ 0xdb, 0xda, 0xd9, 0xd8, 0xdf, 0xde, 0xdd, 0xdc,
+ 0xd2, 0xd3, 0xd0, 0xd1, 0xd6, 0xd7, 0xd4, 0xd5,
+ 0xc9, 0xc8, 0xcb, 0xca, 0xcd, 0xcc, 0xcf, 0xce,
+ 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
+ 0xff, 0xfe, 0xfd, 0xfc, 0xfb, 0xfa, 0xf9, 0xf8,
+ 0xf6, 0xf7, 0xf4, 0xf5, 0xf2, 0xf3, 0xf0, 0xf1,
+ 0xed, 0xec, 0xef, 0xee, 0xe9, 0xe8, 0xeb, 0xea,
+ 0xe4, 0xe5, 0xe6, 0xe7, 0xe0, 0xe1, 0xe2, 0xe3
+};
+
+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
+};
+
+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
+};
+
+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
+};
+
+
+/*
+ * Local functions
+ */
+
+/*****************************************************************************
+ * CSSGetASF : Get Authentification success flag
+ *****************************************************************************/
+int CSSGetASF( int i_fd )
+{
+#if 0
+ dvd_authinfo auth;
+
+ auth.type = DVD_LU_SEND_ASF;
+ auth.lsasf.asf = 0;
+
+ for( auth.lsasf.agid = 0 ; auth.lsasf.agid < 4 ; auth.lsasf.agid++ )
+ {
+ if( ioctl( i_fd, DVD_AUTH, &auth ) )
+ {
+ 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
+}
+
+/*****************************************************************************
+ * CSSCryptKey : shuffles bits and unencrypt keys.
+ * ---
+ * 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 )
+{
+ /* Permutation table for challenge */
+ u8 ppi_perm_challenge[3][10] =
+ { { 1, 3, 0, 7, 5, 2, 9, 6, 4, 8 },
+ { 6, 1, 9, 3, 8, 5, 7, 4, 0, 2 },
+ { 4, 0, 3, 5, 7, 2, 8, 6, 1, 9 } };
+ /* Permutation table for varient table */
+ u8 ppi_perm_varient[2][32] =
+ { { 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 },
+ { 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 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,
+ 0x80, 0x81, 0x84, 0x85, 0x90, 0x91, 0x94, 0x95,
+ 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;
+ int i_val = 0;
+ int i_term = 0;
+ int i, i_index;
+
+ for( i=0 ; i<10 ; i++ )
+ {
+ pi_scratch[i] = pi_challenge[ppi_perm_challenge[i_key_type][i]];
+ }
+ 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++ )
+ {
+ pi_tmp1[i] = pi_scratch[5+i] ^ pi_css_secret[i];
+ }
+
+ /* 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 ) |
+ ( 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]] );
+
+ for( i=0 ; i<30 ; i++ )
+ {
+ 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 = ( 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] = i_val & 0xFF;
+ i_val >>= 8;
+ }
+
+ /*
+ * 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;
+ }
+ 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;
+ }
+ 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;
+ 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;
+ 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;
+ }
+ pi_tmp1[4] ^= pi_tmp1[0];
+ 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;
+ }
+
+ 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)
+{
+ 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;
+
+ /* Host data send */
+ case DVD_HOST_SEND_CHALLENGE:
+ for (i = 0; i < 10; ++i)
+ ai->hsc.chal[9-i] = disc->Challenge[i];
+
+// _CSSPrintDebugBytes ("Host sending challenge", ai->hsc.chal, 10);
+
+ /* Returning data, let LU change state */
+ break;
+
+ case DVD_HOST_SEND_KEY2:
+ for (i = 0; i < KEY_SIZE; ++i)
+ ai->hsk.key[4-i] = disc->Key2[i];
+
+// _CSSPrintDebugBytes ("Host sending key 2", &disc->Key2[0], LEN_KEY);
+
+ /* Returning data, let LU change state */
+ break;
+
+ default:
+ intf_ErrMsg( "Got invalid state %d", ai->type );
+
+ return -22;
+ }
+
+ return 0;
+}
+
+
+
+#endif
+
+/*****************************************************************************
+ * CSSCracker : title key decryption by cracking
+ *****************************************************************************/
+
+// FIXME : adapt to vlc
+#define KEYSTREAMBYTES 10
+
+static unsigned char invtab4[256];
+
+static int CSScracker(int StartVal,unsigned char* pCrypted,unsigned char* pDecrypted,DVD40bitKey *StreamKey,DVD40bitKey *pkey)
+{
+ unsigned char MyBuf[10];
+ unsigned int t1,t2,t3,t4,t5,t6;
+ unsigned int nTry;
+ unsigned int vCandidate;
+ int i;
+ unsigned int j;
+ int i_exit = -1;
+
+
+ for (i=0;i<10;i++)
+ {
+ MyBuf[i] = pi_css_tab1[pCrypted[i]] ^ pDecrypted[i];
+ }
+
+ /* Test that CSStab4 is a permutation */
+ memset( invtab4, 0, 256 );
+ for( i = 0 ; i < 256 ; i++ )
+ {
+ invtab4[ pi_css_tab4[i] ] = 1;
+ }
+
+ for (i = 0 ; i < 256 ; i++)
+ {
+ if (invtab4[ i ] != 1)
+ {
+ printf( "Permutation error\n" );
+ exit( -1 );
+ }
+ }
+
+ /* initialize the inverse of table4 */
+ for( i = 0 ; i < 256 ; i++ )
+ {
+ invtab4[ pi_css_tab4[i] ] = i;
+ }
+
+ for( nTry = StartVal ; nTry < 65536 ; nTry++ )
+ {
+ t1 = nTry >> 8 | 0x100;
+ t2 = nTry & 0xff;
+ t3 = 0; /* not needed */
+ t5 = 0;
+
+ /* iterate cipher 4 times to reconstruct LFSR2 */
+ for( i = 0 ; i < 4 ; i++ )
+ {
+ /* advance LFSR1 normaly */
+ t4=pi_css_tab2[t2]^pi_css_tab3[t1];
+ t2=t1>>1;
+ t1=((t1&1)<<8)^t4;
+ t4=pi_css_tab5[t4];
+ /* deduce t6 & t5 */
+ t6 = MyBuf[ i ];
+ if( t5 )
+ {
+ t6 = ( t6 + 0xff )&0x0ff;
+ }
+ if( t6 < t4 )
+ {
+ t6 += 0x100;
+ }
+ t6 -= t4;
+ t5 += t6 + t4;
+ t6 = invtab4[ t6 ];
+ /* printf( "%02x/%02x ", t4, t6 ); */
+ /* feed / advance t3 / t5 */
+ t3 = (t3 << 8) | t6;
+ t5 >>= 8;
+ }
+
+ vCandidate = t3;
+
+ /* iterate 6 more times to validate candidate key */
+ for( ; i < KEYSTREAMBYTES ; i++ )
+ {
+ 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;
+ if( (t5 & 0xff) != MyBuf[i] ) break;
+ t5>>=8;
+ }
+
+ if( i == KEYSTREAMBYTES )
+ {
+ /* Do 4 backwards steps of iterating t3 to deduce initial state */
+ t3 = vCandidate;
+ for( i = 0 ; i < 4 ; i++ )
+ {
+ t1 = t3 & 0xff;
+ t3 = ( t3 >> 8 );
+ /* easy to code, and fast enough bruteforce
+ * search for byte shifted in */
+ for( j=0 ; j < 256 ; j++ )
+ {
+ t3 = (t3 & 0x1ffff) | ( j << 17 );
+ t6=(((((((t3>>3)^t3)>>1)^t3)>>8)^t3)>>5)&0xff;
+ if( t6 == t1 ) break;
+ }
+ }
+// printf( "Candidate: t1=%03x t2=%02x t3=%08x\n", 0x100|(nTry>>8),nTry&0x0ff, t3 );
+
+ t4 = (t3>>1) - 4;
+ for(t5=0;t5<8;t5++)
+ {
+ if ( ((t4+t5)*2 + 8 - ((t4+t5)&7))==t3 )
+ {
+ (*pkey)[0] = nTry>>8;
+ (*pkey)[1] = nTry & 0xFF;
+ (*pkey)[2] = ((t4+t5) >> 0) & 0xFF;
+ (*pkey)[3] = ((t4+t5) >> 8) & 0xFF;
+ (*pkey)[4] = ((t4+t5) >> 16) & 0xFF;
+ i_exit = nTry+1;
+ }
+ }
+ }
+ }
+
+ if (i_exit>=0)
+ {
+ (*pkey)[0] ^= (*StreamKey)[0];
+ (*pkey)[1] ^= (*StreamKey)[1];
+ (*pkey)[2] ^= (*StreamKey)[2];
+ (*pkey)[3] ^= (*StreamKey)[3];
+ (*pkey)[4] ^= (*StreamKey)[4];
+ }
+
+ return i_exit;
+}
+
+/*
+ * Authentication and keys
+ */
+
+/*****************************************************************************
+ * CSSInit : CSS Structure initialisation and DVD authentication.
+ *****************************************************************************/
+
+css_t CSSInit( int i_fd )
+{
+#if 0
+ css_t css;
+ dvd_authinfo auth;
+ 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 ) )
+ {
+ css.b_error = 1;
+ return css;
+ }
+#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 )
+ {
+ 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;
+ }
+ css.i_agid = auth.lsa.agid;
+
+fprintf( stderr, "2\n" );
+ /* Get drive keys */
+ for( i = 0 ; i < 10 ; ++i )
+ {
+ css.keys.pi_challenge[i] = i;
+ }
+fprintf( stderr, "3\n" );
+
+ if( ioctl( i_fd, DVD_AUTH, &auth ) < 0 )
+ {
+ intf_ErrMsg( "DVD ioctl error in CSSInit (Drive keys)" );
+ css.b_error = 1;
+ return css;
+ }
+fprintf( stderr, "4\n" );
+
+ if( ioctl( i_fd, DVD_AUTH, &auth ) < 0 )
+ {
+ intf_ErrMsg( "DVD ioctl error in CSSInit (Drive keys)" );
+ css.b_error = 1;
+ return css;
+ }
+fprintf( stderr, "5\n" );
+
+ for( i=0 ; i<KEY_SIZE ; i++ )
+ {
+ css.keys.pi_key1[i] = auth.lsk.key[KEY_SIZE -1 -i];
+ }
+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 )
+ {
+ intf_ErrMsg( "DVD ioctl error in CSSInit (drive Keys)" );
+ css.b_error = 1;
+ return css;
+ }
+fprintf( stderr, "7\n" );
+
+ for( i = 0; i < 2*KEY_SIZE; ++i )
+ {
+ css.keys.pi_challenge[i] = auth.hsc.chal[2*KEY_SIZE -1 -i];
+ }
+ 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 )
+ {
+ auth.hsk.key[4-i] = css.keys.pi_key2[i];
+ }
+fprintf( stderr, "8\n" );
+
+ if( ioctl( i_fd, DVD_AUTH, &auth ) < 0)
+ {
+ intf_ErrMsg( "Send key2 to LU failed (expected)" );
+ css.b_error = 1;
+ 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;
+
+
+ /* 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");
+ }
+
+ 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);
+
+ intf_Msg( "Received Session Key\n" );
+ for( i=0 ; i<KEY_SIZE ; i++ )
+ {
+ intf_Msg( "%02x", &disc->KeyCheck[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);
+
+ memcpy (disc->KeyCheck, s.disckey.value, 2048);
+
+
+ if (CSSGetASF (fd) < 0)
+ {
+ css.b_error = 1;
+ return css;
+ }
+
+
+
+#endif
+
+ return css;
+}
+
+/*****************************************************************************
+ * CSSGetKeys : get the disc key of the media en the dvd device, and then
+ * the title keys.
+ * The DVD should have been opened before.
+ *****************************************************************************/
+
+#define MaxKeys 1000
+
+struct
+{
+ int verbosity ; /* 0-9 */
+ int repetitions ;
+ int scanall ;
+ char *infile ;
+} params ;
+
+typedef struct
+{
+ int occ;
+ DVD40bitKey key;
+} KeyOcc;
+
+
+int CSSGetKeys( css_t * p_css )
+{
+#if 0
+
+ /*
+ * css_auth/libcss method from Derek Fawcus.
+ * Get encrypted keys with ioctls and decrypt them
+ * with cracked player keys
+ */
+ dvd_struct dvd;
+ dvd_authinfo auth;
+ int i, j;
+ if( CSSGetASF( p_css->i_fd ) < 0 )
+ {
+ return 1;
+ }
+
+ /* Disk key */
+ dvd.type = DVD_STRUCT_DISCKEY;
+ dvd.disckey.agid = p_css->i_agid;
+ memset( dvd.disckey.value, 0, 2048 );
+
+ if( ioctl( p_css->i_fd, DVD_READ_STRUCT, &dvd )<0 )
+ {
+ intf_ErrMsg( "DVD ioctl error in CSSGetKeys" );
+ p_css->b_error = 1;
+ return 1;
+ }
+
+ for( i=0 ; i<sizeof(dvd.disckey.value) ; i++ )
+ {
+ dvd.disckey.value[i] ^=
+ p_css->keys.pi_key_check[4 - (i % KEY_SIZE )];
+ }
+
+ memcpy( p_css->pi_disc_key, dvd.disckey.value, 2048 );
+
+ if( CSSGetASF( p_css->i_fd ) < 0 )
+ {
+ return 1;
+ }
+
+ /* Title keys */
+ auth.type = DVD_LU_SEND_TITLE_KEY;
+ auth.lstk.agid = p_css->i_agid;
+
+ for( j=0 ; j<p_css->i_title_nb ; j++ )
+ {
+ auth.lstk.lba = p_css->p_title_key[j].i_lba;
+
+ if( ioctl( p_css->i_fd, DVD_AUTH, &auth )<0 )
+ {
+ intf_ErrMsg( "DVD ioctl error in CSSGetKeys" );
+ p_css->b_error = 1;
+ return 1;
+ }
+
+ for( i=0 ; i<KEY_SIZE ; ++i )
+ {
+ auth.lstk.title_key[i] ^=
+ p_css->keys.pi_key_check[4 - (i % KEY_SIZE)];
+ memcpy( p_css->p_title_key[j].key, auth.lstk.title_key, KEY_SIZE );
+ }
+ }
+
+ if( CSSGetASF( p_css->i_fd ) < 0 )
+ {
+ return 1;
+ }
+
+#else
+
+ /*
+ * 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++ )
+ {
+// p_css->p_title_key->key[i] = PosKey[highest].key[i];
+ }
+
+#endif
+ return 0;
+}
+
+/*****************************************************************************
+ * CSSDescrambleSector
+ *****************************************************************************/
+int CSSDescrambleSector( DVD40bitKey* key, unsigned char * 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 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)
+ {
+ 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;
+ }
+
+ buf[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);
+}
projects / vlc / commitdiff