Написать C dll для C# проекта

[vigorian]

Привет всем, хочу написать простенький сниффер для Arma 2.
Нашел алгоритм декрипта пакетов и появилась идея собрать dll с export DecodePacket EncodePacket, и использовать в c# проекте, но увы знания С равны 0 даже никогда проекты не собирал, если кому не сложно помогите собрать dll вот код:

Код

static unsigned char byte_table[2080] = {0};

int __cdecl sub_B713BD(int a1) // 1.62
{
return ((unsigned __int16)(-5331 * (9 * (a1 ^ ((a1 ^ 0x3D0000u) >> 16)) ^ (9 * (a1 ^ ((a1 ^ 0x3D0000) >> 16)) >> 4))) ^ (unsigned __int16)(668265261 * (9 * (a1 ^ ((a1 ^ 0x3D0000) >> 16)) ^ (9 * (a1 ^ ((a1 ^ 0x3D0000) >> 16)) >> 4)) >> 15)) & 0x7FFF;
}



int DecodePacket(BYTE* packet, int size)
{
int Result = 0;

if (packet && size >= 24){
int unknownVal = 0;
int i = 24;
int unknown_field0 = *(DWORD *)(packet + 0x08);

unknownVal = sub_B713BD(unknown_field0);

do
{
*((BYTE *)packet + i) ^= byte_table[(i + unknownVal) & 0x7FF];
++i;
}
while (i <= packet[0]);

Result = 1;
}

return Result;
}

int EncodePacket(BYTE* packet, int size)
{
int Result = 0;

if (packet && size >= 24){
int unknownVal = 0;
int i = 24;
int unknown_field0 = *(DWORD *)(packet + 0x08);

unknownVal = sub_B713BD(unknown_field0);

do
{
packet[i] ^= byte_table[((WORD)i + unknownVal) & 0x7FF];
++i;
}
while (i <= *(WORD *)packet);

Result = 1;
}
return Result;
}

Заранее спасибо.

[Necroz-Team]

Ксорка на 0x7FF
Что мешает просто эти функции переписать на шарп?

[Emperor]

Что мешает просто эти функции переписать на шарп?

но увы знания С равны 0

А фиг знает.

[Zubastic]

Да тут можно копипастом прямо.

[vigorian]

Ксорка на 0x7FF
Что мешает просто эти функции переписать на шарп?

а как насчет этой функции sub_B713BD, это и есть xor?
Пытался погуглить, нашел такой сампл

public static byte[] CryptPacket(byte[] packet)
{
// create a new instance
byte[] output = new byte[packet.Length];

// process ALL array items
for (int i = 0; i < packet.Length; i++)
{
output[i] = (byte)(0x61 ^ packet[i]);
}

return output;
}
то есть в место 0x61 юзать 0x7FF
не подскажите как переписать, увы с xor никогда не работал.

[PROGRAMMATOR]

Код:

int unknown_field0 = *(DWORD *)(packet + 0x08);

Что там на 8 индексе в пакете?

[h4x0r]

Да простят меня шарп кодеры:redlol:

C# Code

PHP код:

<?php 

public static byte[] byte_table = {

    0x70, 0x38, 0x9C, 0x4E, 0x27, 0x13, 0x89, 0xC4, 0x62, 0xB1, 0x58, 0x2C,

    0x16, 0x8B, 0xC5, 0x62, 0xB1, 0xD8, 0x6C, 0xB6, 0xDB, 0xED, 0x76, 0x3B,

    0x9D, 0x4E, 0xA7, 0xD3, 0x69, 0x34, 0x1A, 0x0D, 0x86, 0xC3, 0x61, 0xB0,

    0xD8, 0xEC, 0x76, 0xBB, 0xDD, 0xEE, 0xF7, 0x7B, 0xBD, 0xDE, 0xEF, 0x77,

    0xBB, 0xDD, 0xEE, 0xF7, 0xFB, 0x7D, 0x3E, 0x1F, 0x8F, 0xC7, 0xE3, 0xF1,

    0xF8, 0xFC, 0x7E, 0xBF, 0xDF, 0xEF, 0x77, 0x3B, 0x1D, 0x0E, 0x87, 0xC3,

    0x61, 0xB0, 0x58, 0xAC, 0xD6, 0xEB, 0x75, 0x3A, 0x9D, 0x4E, 0xA7, 0xD3,

    0xE9, 0xF4, 0xFA, 0xFD, 0x7E, 0xBF, 0x5F, 0xAF, 0xD7, 0xEB, 0x75, 0x3A,

    0x1D, 0x8E, 0x47, 0xA3, 0x51, 0x28, 0x94, 0xCA, 0x65, 0xB2, 0x59, 0x2C,

    0x16, 0x8B, 0x45, 0xA2, 0xD1, 0xE8, 0xF4, 0x7A, 0xBD, 0xDE, 0x6F, 0x37,

    0x9B, 0xCD, 0x66, 0x33, 0x19, 0x0C, 0x06, 0x03, 0x81, 0x40, 0xA0, 0x50,

    0x28, 0x14, 0x0A, 0x85, 0xC2, 0xE1, 0x70, 0xB8, 0x5C, 0x2E, 0x97, 0xCB,

    0x65, 0x32, 0x19, 0x8C, 0x46, 0x23, 0x91, 0x48, 0x24, 0x92, 0xC9, 0x64,

    0x32, 0x99, 0x4C, 0xA6, 0xD3, 0x69, 0x34, 0x1A, 0x0D, 0x86, 0x43, 0x21,

    0x10, 0x88, 0xC4, 0x62, 0xB1, 0xD8, 0xEC, 0xF6, 0x7B, 0x3D, 0x9E, 0xCF,

    0xE7, 0x73, 0xB9, 0xDC, 0x6E, 0xB7, 0x5B, 0x2D, 0x96, 0xCB, 0x65, 0xB2,

    0x59, 0xAC, 0xD6, 0x6B, 0x35, 0x9A, 0x4D, 0xA6, 0xD3, 0x69, 0xB4, 0xDA,

    0xED, 0xF6, 0xFB, 0xFD, 0x7E, 0xBF, 0xDF, 0x6F, 0xB7, 0x5B, 0x2D, 0x96,

    0x4B, 0xA5, 0x52, 0xA9, 0x54, 0xAA, 0x55, 0x2A, 0x95, 0x4A, 0xA5, 0x52,

    0xA9, 0xD4, 0x6A, 0x35, 0x1A, 0x0D, 0x86, 0xC3, 0x61, 0xB0, 0xD8, 0x6C,

    0xB6, 0xDB, 0xED, 0xF6, 0xFB, 0x7D, 0xBE, 0xDF, 0xEF, 0x77, 0x3B, 0x1D,

    0x0E, 0x87, 0x43, 0xA1, 0xD0, 0x68, 0xB4, 0xDA, 0xED, 0x76, 0x3B, 0x9D,

    0x4E, 0x27, 0x13, 0x09, 0x84, 0x42, 0x21, 0x90, 0xC8, 0x64, 0xB2, 0xD9,

    0x6C, 0xB6, 0x5B, 0x2D, 0x16, 0x8B, 0x45, 0xA2, 0x51, 0xA8, 0x54, 0x2A,

    0x15, 0x8A, 0x45, 0x22, 0x91, 0xC8, 0x64, 0xB2, 0x59, 0x2C, 0x96, 0x4B,

    0xA5, 0xD2, 0xE9, 0x74, 0xBA, 0x5D, 0xAE, 0xD7, 0x6B, 0xB5, 0x5A, 0xAD,

    0x56, 0x2B, 0x95, 0xCA, 0x65, 0xB2, 0xD9, 0xEC, 0x76, 0xBB, 0xDD, 0x6E,

    0xB7, 0xDB, 0xED, 0x76, 0xBB, 0x5D, 0xAE, 0xD7, 0xEB, 0xF5, 0x7A, 0x3D,

    0x1E, 0x8F, 0xC7, 0xE3, 0x71, 0xB8, 0xDC, 0x6E, 0x37, 0x1B, 0x8D, 0x46,

    0x23, 0x11, 0x08, 0x04, 0x82, 0xC1, 0x60, 0xB0, 0xD8, 0x6C, 0xB6, 0xDB,

    0xED, 0x76, 0xBB, 0xDD, 0xEE, 0xF7, 0xFB, 0x7D, 0x3E, 0x1F, 0x0F, 0x87,

    0xC3, 0xE1, 0xF0, 0xF8, 0x7C, 0xBE, 0xDF, 0xEF, 0x77, 0xBB, 0x5D, 0xAE,

    0x57, 0xAB, 0xD5, 0xEA, 0x75, 0xBA, 0xDD, 0xEE, 0xF7, 0x7B, 0xBD, 0x5E,

    0x2F, 0x97, 0x4B, 0xA5, 0xD2, 0xE9, 0xF4, 0x7A, 0x3D, 0x1E, 0x0F, 0x07,

    0x83, 0x41, 0xA0, 0x50, 0x28, 0x14, 0x0A, 0x85, 0x42, 0xA1, 0xD0, 0xE8,

    0x74, 0x3A, 0x9D, 0xCE, 0x67, 0x33, 0x19, 0x0C, 0x06, 0x03, 0x01, 0x80,

    0x40, 0xA0, 0x50, 0x28, 0x14, 0x8A, 0xC5, 0xE2, 0x71, 0x38, 0x9C, 0x4E,

    0x27, 0x93, 0xC9, 0x64, 0xB2, 0x59, 0x2C, 0x16, 0x0B, 0x85, 0xC2, 0x61,

    0x30, 0x98, 0x4C, 0xA6, 0xD3, 0x69, 0x34, 0x1A, 0x0D, 0x86, 0xC3, 0x61,

    0x30, 0x98, 0xCC, 0x66, 0xB3, 0xD9, 0xEC, 0xF6, 0x7B, 0xBD, 0xDE, 0x6F,

    0x37, 0x1B, 0x0D, 0x86, 0x43, 0xA1, 0x50, 0x28, 0x14, 0x8A, 0x45, 0xA2,

    0xD1, 0xE8, 0x74, 0x3A, 0x1D, 0x8E, 0xC7, 0x63, 0xB1, 0xD8, 0x6C, 0x36,

    0x1B, 0x8D, 0x46, 0x23, 0x11, 0x08, 0x84, 0xC2, 0x61, 0x30, 0x98, 0xCC,

    0x66, 0xB3, 0xD9, 0xEC, 0x76, 0x3B, 0x9D, 0xCE, 0x67, 0x33, 0x19, 0x0C,

    0x86, 0x43, 0xA1, 0xD0, 0x68, 0xB4, 0x5A, 0x2D, 0x16, 0x8B, 0xC5, 0x62,

    0x31, 0x18, 0x0C, 0x86, 0x43, 0xA1, 0x50, 0x28, 0x94, 0x4A, 0xA5, 0x52,

    0xA9, 0xD4, 0x6A, 0x35, 0x1A, 0x8D, 0xC6, 0xE3, 0x71, 0xB8, 0xDC, 0x6E,

    0xB7, 0xDB, 0xED, 0xF6, 0x7B, 0x3D, 0x1E, 0x0F, 0x87, 0xC3, 0x61, 0x30,

    0x18, 0x8C, 0x46, 0x23, 0x91, 0x48, 0xA4, 0x52, 0xA9, 0xD4, 0x6A, 0xB5,

    0x5A, 0xAD, 0xD6, 0x6B, 0x35, 0x9A, 0xCD, 0x66, 0xB3, 0xD9, 0x6C, 0xB6,

    0xDB, 0xED, 0xF6, 0xFB, 0x7D, 0x3E, 0x1F, 0x8F, 0x47, 0x23, 0x11, 0x08,

    0x84, 0x42, 0xA1, 0xD0, 0xE8, 0x74, 0x3A, 0x9D, 0xCE, 0xE7, 0x73, 0x39,

    0x1C, 0x0E, 0x07, 0x03, 0x81, 0x40, 0xA0, 0x50, 0xA8, 0x54, 0x2A, 0x15,

    0x8A, 0xC5, 0x62, 0xB1, 0x58, 0x2C, 0x96, 0x4B, 0x25, 0x92, 0x49, 0xA4,

    0x52, 0xA9, 0xD4, 0xEA, 0x75, 0xBA, 0x5D, 0x2E, 0x17, 0x0B, 0x85, 0xC2,

    0x61, 0xB0, 0x58, 0xAC, 0xD6, 0x6B, 0x35, 0x1A, 0x0D, 0x06, 0x83, 0xC1,

    0xE0, 0xF0, 0xF8, 0xFC, 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F,

    0xBF, 0xDF, 0x6F, 0x37, 0x1B, 0x0D, 0x06, 0x03, 0x01, 0x00, 0x80, 0x40,

    0xA0, 0x50, 0xA8, 0xD4, 0xEA, 0xF5, 0x7A, 0x3D, 0x1E, 0x8F, 0x47, 0x23,

    0x91, 0x48, 0xA4, 0x52, 0x29, 0x14, 0x8A, 0x45, 0x22, 0x91, 0xC8, 0x64,

    0x32, 0x99, 0xCC, 0xE6, 0x73, 0xB9, 0xDC, 0xEE, 0x77, 0xBB, 0x5D, 0x2E,

    0x17, 0x0B, 0x85, 0x42, 0xA1, 0xD0, 0xE8, 0xF4, 0xFA, 0x7D, 0x3E, 0x1F,

    0x0F, 0x07, 0x03, 0x01, 0x00, 0x00, 0x00, 0x80, 0xC0, 0xE0, 0x70, 0xB8,

    0xDC, 0x6E, 0x37, 0x1B, 0x0D, 0x06, 0x83, 0xC1, 0x60, 0x30, 0x98, 0xCC,

    0x66, 0xB3, 0xD9, 0xEC, 0xF6, 0xFB, 0xFD, 0xFE, 0x7F, 0x3F, 0x1F, 0x0F,

    0x87, 0x43, 0xA1, 0x50, 0xA8, 0x54, 0x2A, 0x95, 0xCA, 0x65, 0xB2, 0x59,

    0x2C, 0x16, 0x8B, 0x45, 0x22, 0x91, 0xC8, 0xE4, 0x72, 0xB9, 0xDC, 0x6E,

    0x37, 0x9B, 0xCD, 0xE6, 0x73, 0xB9, 0xDC, 0x6E, 0xB7, 0xDB, 0x6D, 0xB6,

    0x5B, 0x2D, 0x96, 0x4B, 0xA5, 0xD2, 0x69, 0x34, 0x1A, 0x0D, 0x06, 0x83,

    0x41, 0xA0, 0x50, 0xA8, 0x54, 0xAA, 0xD5, 0xEA, 0xF5, 0xFA, 0xFD, 0x7E,

    0x3F, 0x9F, 0x4F, 0x27, 0x13, 0x89, 0x44, 0x22, 0x91, 0x48, 0xA4, 0xD2,

    0xE9, 0xF4, 0x7A, 0xBD, 0xDE, 0xEF, 0xF7, 0x7B, 0x3D, 0x9E, 0x4F, 0x27,

    0x13, 0x09, 0x04, 0x82, 0xC1, 0x60, 0x30, 0x98, 0xCC, 0xE6, 0x73, 0xB9,

    0x5C, 0xAE, 0xD7, 0xEB, 0xF5, 0x7A, 0x3D, 0x1E, 0x8F, 0x47, 0xA3, 0x51,

    0xA8, 0xD4, 0x6A, 0x35, 0x1A, 0x8D, 0x46, 0x23, 0x91, 0x48, 0xA4, 0x52,

    0xA9, 0xD4, 0xEA, 0xF5, 0x7A, 0xBD, 0xDE, 0x6F, 0x37, 0x9B, 0xCD, 0x66,

    0xB3, 0x59, 0x2C, 0x16, 0x0B, 0x85, 0x42, 0xA1, 0x50, 0x28, 0x14, 0x8A,

    0xC5, 0x62, 0x31, 0x18, 0x0C, 0x06, 0x03, 0x81, 0xC0, 0x60, 0xB0, 0x58,

    0xAC, 0x56, 0xAB, 0xD5, 0xEA, 0x75, 0xBA, 0xDD, 0xEE, 0xF7, 0xFB, 0xFD,

    0x7E, 0x3F, 0x9F, 0x4F, 0xA7, 0xD3, 0xE9, 0xF4, 0x7A, 0xBD, 0x5E, 0xAF,

    0xD7, 0xEB, 0xF5, 0xFA, 0x7D, 0x3E, 0x1F, 0x0F, 0x07, 0x03, 0x81, 0xC0,

    0x60, 0x30, 0x98, 0xCC, 0xE6, 0x73, 0xB9, 0xDC, 0x6E, 0xB7, 0xDB, 0xED,

    0x76, 0x3B, 0x1D, 0x8E, 0x47, 0xA3, 0xD1, 0x68, 0x34, 0x1A, 0x8D, 0xC6,

    0x63, 0x31, 0x18, 0x8C, 0x46, 0x23, 0x91, 0xC8, 0xE4, 0x72, 0x39, 0x9C,

    0x4E, 0xA7, 0x53, 0xA9, 0xD4, 0x6A, 0xB5, 0xDA, 0x6D, 0x36, 0x9B, 0xCD,

    0xE6, 0xF3, 0x79, 0xBC, 0xDE, 0x6F, 0x37, 0x1B, 0x8D, 0x46, 0x23, 0x91,

    0xC8, 0x64, 0x32, 0x99, 0x4C, 0xA6, 0xD3, 0x69, 0xB4, 0xDA, 0x6D, 0xB6,

    0x5B, 0x2D, 0x16, 0x8B, 0xC5, 0x62, 0xB1, 0x58, 0x2C, 0x16, 0x0B, 0x85,

    0x42, 0x21, 0x90, 0x48, 0xA4, 0xD2, 0xE9, 0x74, 0x3A, 0x1D, 0x0E, 0x07,

    0x83, 0x41, 0x20, 0x90, 0x48, 0x24, 0x92, 0x49, 0x24, 0x92, 0xC9, 0xE4,

    0x72, 0xB9, 0x5C, 0x2E, 0x17, 0x0B, 0x05, 0x02, 0x01, 0x80, 0xC0, 0x60,

    0xB0, 0x58, 0x2C, 0x16, 0x0B, 0x85, 0x42, 0x21, 0x90, 0xC8, 0xE4, 0xF2,

    0xF9, 0x7C, 0x3E, 0x1F, 0x0F, 0x07, 0x83, 0x41, 0xA0, 0xD0, 0xE8, 0xF4,

    0xFA, 0xFD, 0x7E, 0xBF, 0xDF, 0xEF, 0x77, 0x3B, 0x1D, 0x0E, 0x07, 0x83,

    0x41, 0xA0, 0x50, 0xA8, 0xD4, 0xEA, 0x75, 0x3A, 0x9D, 0xCE, 0xE7, 0x73,

    0x39, 0x9C, 0x4E, 0xA7, 0x53, 0xA9, 0x54, 0xAA, 0x55, 0xAA, 0x55, 0x2A,

    0x95, 0xCA, 0xE5, 0xF2, 0x79, 0x3C, 0x1E, 0x0F, 0x07, 0x03, 0x81, 0xC0,

    0xE0, 0xF0, 0xF8, 0x7C, 0xBE, 0x5F, 0xAF, 0xD7, 0x6B, 0xB5, 0xDA, 0x6D,

    0xB6, 0xDB, 0xED, 0x76, 0x3B, 0x9D, 0xCE, 0xE7, 0x73, 0x39, 0x1C, 0x0E,

    0x07, 0x83, 0xC1, 0x60, 0xB0, 0x58, 0xAC, 0x56, 0x2B, 0x15, 0x8A, 0xC5,

    0xE2, 0xF1, 0xF8, 0xFC, 0xFE, 0xFF, 0x7F, 0xBF, 0x5F, 0xAF, 0x57, 0x2B,

    0x95, 0xCA, 0x65, 0x32, 0x19, 0x8C, 0x46, 0x23, 0x91, 0x48, 0xA4, 0xD2,

    0xE9, 0x74, 0x3A, 0x9D, 0x4E, 0xA7, 0xD3, 0x69, 0x34, 0x9A, 0x4D, 0x26,

    0x93, 0x49, 0xA4, 0xD2, 0xE9, 0x74, 0xBA, 0xDD, 0x6E, 0xB7, 0x5B, 0x2D,

    0x16, 0x8B, 0x45, 0x22, 0x91, 0xC8, 0xE4, 0x72, 0x39, 0x9C, 0x4E, 0x27,

    0x93, 0xC9, 0xE4, 0x72, 0xB9, 0xDC, 0x6E, 0x37, 0x9B, 0xCD, 0x66, 0x33,

    0x99, 0xCC, 0x66, 0xB3, 0xD9, 0x6C, 0xB6, 0x5B, 0x2D, 0x16, 0x0B, 0x05,

    0x02, 0x01, 0x80, 0x40, 0x20, 0x10, 0x88, 0x44, 0x22, 0x11, 0x88, 0x44,

    0x22, 0x91, 0x48, 0xA4, 0xD2, 0xE9, 0xF4, 0xFA, 0xFD, 0xFE, 0xFF, 0xFF,

    0x7F, 0x3F, 0x9F, 0x4F, 0x27, 0x13, 0x89, 0x44, 0x22, 0x11, 0x08, 0x84,

    0xC2, 0xE1, 0xF0, 0x78, 0xBC, 0xDE, 0xEF, 0xF7, 0xFB, 0x7D, 0x3E, 0x9F,

    0x4F, 0xA7, 0x53, 0x29, 0x94, 0xCA, 0x65, 0xB2, 0xD9, 0xEC, 0xF6, 0xFB,

    0xFD, 0xFE, 0xFF, 0xFF, 0xFF, 0x7F, 0xBF, 0x5F, 0xAF, 0x57, 0xAB, 0x55,

    0x2A, 0x15, 0x0A, 0x05, 0x82, 0x41, 0x20, 0x90, 0x48, 0x24, 0x12, 0x89,

    0x44, 0x22, 0x91, 0xC8, 0x64, 0xB2, 0x59, 0x2C, 0x16, 0x8B, 0xC5, 0xE2,

    0xF1, 0x78, 0xBC, 0x5E, 0xAF, 0xD7, 0x6B, 0x35, 0x9A, 0x4D, 0x26, 0x93,

    0x49, 0x24, 0x12, 0x89, 0xC4, 0xE2, 0xF1, 0x78, 0xBC, 0x5E, 0x2F, 0x17,

    0x0B, 0x85, 0xC2, 0x61, 0x30, 0x98, 0x4C, 0x26, 0x13, 0x09, 0x04, 0x02,

    0x01, 0x80, 0xC0, 0x60, 0x30, 0x98, 0x4C, 0xA6, 0x53, 0xA9, 0x54, 0x2A,

    0x95, 0xCA, 0xE5, 0x72, 0x39, 0x9C, 0xCE, 0xE7, 0x73, 0x39, 0x9C, 0xCE,

    0xE7, 0xF3, 0x79, 0x3C, 0x9E, 0x4F, 0xA7, 0x53, 0x29, 0x94, 0x4A, 0xA5,

    0xD2, 0x69, 0xB4, 0xDA, 0xED, 0xF6, 0xFB, 0xFD, 0xFE, 0x7F, 0xBF, 0x5F,

    0xAF, 0x57, 0x2B, 0x95, 0x4A, 0xA5, 0x52, 0x29, 0x94, 0x4A, 0x25, 0x92,

    0x49, 0xA4, 0xD2, 0x69, 0xB4, 0xDA, 0xED, 0xF6, 0x7B, 0x3D, 0x1E, 0x0F,

    0x87, 0x43, 0xA1, 0x50, 0x28, 0x94, 0x4A, 0x25, 0x92, 0x49, 0xA4, 0x52,

    0x29, 0x14, 0x8A, 0xC5, 0xE2, 0x71, 0x38, 0x1C, 0x0E, 0x87, 0xC3, 0xE1,

    0x70, 0xB8, 0x5C, 0x2E, 0x17, 0x0B, 0x05, 0x82, 0x41, 0xA0, 0x50, 0x28,

    0x94, 0x4A, 0x25, 0x12, 0x09, 0x84, 0xC2, 0x61, 0x30, 0x98, 0xCC, 0xE6,

    0x73, 0x39, 0x9C, 0x4E, 0x27, 0x93, 0xC9, 0x64, 0x32, 0x19, 0x8C, 0x46,

    0x23, 0x91, 0xC8, 0x64, 0x32, 0x99, 0x4C, 0x26, 0x93, 0x49, 0xA4, 0xD2,

    0x69, 0xB4, 0x5A, 0x2D, 0x16, 0x8B, 0x45, 0x22, 0x11, 0x88, 0x44, 0xA2,

    0x51, 0xA8, 0x54, 0x2A, 0x95, 0xCA, 0xE5, 0xF2, 0xF9, 0xFC, 0x7E, 0xBF,

    0x5F, 0x2F, 0x97, 0xCB, 0xE5, 0xF2, 0xF9, 0xFC, 0x7E, 0xBF, 0x5F, 0x2F,

    0x17, 0x8B, 0xC5, 0xE2, 0xF1, 0xF8, 0x7C, 0xBE, 0x5F, 0x2F, 0x17, 0x0B,

    0x85, 0x42, 0x21, 0x90, 0xC8, 0xE4, 0x72, 0x39, 0x1C, 0x0E, 0x07, 0x03,

    0x01, 0x80, 0x40, 0xA0, 0xD0, 0x68, 0x34, 0x1A, 0x8D, 0xC6, 0x63, 0x31,

    0x98, 0x4C, 0x26, 0x13, 0x89, 0xC4, 0xE2, 0x71, 0x38, 0x9C, 0x4E, 0x27,

    0x93, 0x49, 0xA4, 0xD2, 0x69, 0x34, 0x1A, 0x0D, 0x86, 0xC3, 0x61, 0x30,

    0x18, 0x8C, 0x46, 0xA3, 0xD1, 0xE8, 0xF4, 0x7A, 0xBD, 0xDE, 0x6F, 0xB7,

    0x5B, 0xAD, 0x56, 0x2B, 0x15, 0x0A, 0x05, 0x02, 0x81, 0x40, 0x20, 0x90,

    0xC8, 0x64, 0xB2, 0x59, 0x2C, 0x96, 0x4B, 0xA5, 0x52, 0xA9, 0x54, 0xAA,

    0x55, 0xAA, 0xD5, 0x6A, 0xB5, 0x5A, 0xAD, 0xD6, 0x6B, 0x35, 0x1A, 0x0D,

    0x06, 0x83, 0xC1, 0x60, 0xB0, 0xD8, 0xEC, 0xF6, 0xFB, 0xFD, 0xFE, 0xFF,

    0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0xBF, 0x5F, 0xAF, 0x57, 0x2B, 0x15, 0x0A,

    0x05, 0x02, 0x01, 0x80, 0x40, 0x20, 0x90, 0x48, 0xA4, 0x52, 0x29, 0x94,

    0x4A, 0x25, 0x92, 0x49, 0xA4, 0x52, 0x29, 0x94, 0xCA, 0xE5, 0xF2, 0x79,

    0x3C, 0x1E, 0x0F, 0x87, 0xC3, 0xE1, 0xF0, 0xF8, 0xFC, 0xFE, 0x7F, 0xBF,

    0x5F, 0xAF, 0x57, 0xAB, 0x55, 0xAA, 0xD5, 0x6A, 0x35, 0x9A, 0x4D, 0x26,

    0x93, 0x49, 0x24, 0x12, 0x09, 0x84, 0xC2, 0xE1, 0x70, 0xB8, 0x5C, 0x2E,

    0x17, 0x0B, 0x85, 0x42, 0x21, 0x90, 0x48, 0x24, 0x92, 0x49, 0x24, 0x12,

    0x09, 0x04, 0x02, 0x81, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x81, 0x40,

    0xA0, 0x50, 0xA8, 0x54, 0xAA, 0xD5, 0x6A, 0xB5, 0x5A, 0xAD, 0x56, 0x2B,

    0x95, 0x4A, 0x25, 0x12, 0x89, 0xC4, 0x62, 0xB1, 0xD8, 0x6C, 0xB6, 0xDB,

    0x6D, 0x36, 0x9B, 0xCD, 0x66, 0xB3, 0xD9, 0x6C, 0x36, 0x1B, 0x0D, 0x06,

    0x83, 0x41, 0x20, 0x10, 0x88, 0x44, 0x22, 0x91, 0xC8, 0xE4, 0xF2, 0xF9,

    0x7C, 0xBE, 0xDF, 0xEF, 0xF7, 0xFB, 0x7D, 0xBE, 0xDF, 0xEF, 0xF7, 0xFB,

    0x7D, 0xBE, 0xDF, 0x6F, 0xB7, 0xDB, 0x6D, 0xB6, 0xDB, 0x6D, 0xB6, 0xDB,

    0x6D, 0xB6, 0x5B, 0x2D, 0x16, 0x0B, 0x05, 0x02, 0x01, 0x00, 0x00, 0x00,

    0x00, 0x80, 0x40, 0x20, 0x10, 0x88, 0x44, 0x22, 0x11, 0x08, 0x04, 0x02,

    0x81, 0x40, 0xA0, 0xD0, 0xE8, 0xF4, 0xFA, 0xFD, 0x7E, 0xBF, 0x5F, 0xAF,

    0x57, 0x2B, 0x15, 0x0A, 0x05, 0x82, 0x41, 0xA0, 0x50, 0x28, 0x94, 0x4A,

    0xA5, 0x52, 0x29, 0x94, 0xCA, 0x65, 0x32, 0x99, 0xCC, 0xE6, 0x73, 0xB9,

    0xDC, 0xEE, 0xF7, 0xFB, 0x7D, 0x3E, 0x1F, 0x0F, 0x87, 0x43, 0xA1, 0xD0,

    0xE8, 0x74, 0xBA, 0xDD, 0xEE, 0x77, 0xBB, 0x5D, 0x2E, 0x17, 0x0B, 0x05,

    0x82, 0xC1, 0xE0, 0xF0, 0xF8, 0xFC, 0x7E, 0x3F, 0x1F, 0x0F, 0x87, 0xC3,

    0xE1, 0x70, 0xB8, 0xDC, 0x6E, 0xB7, 0xDB, 0x6D, 0xB6, 0x5B, 0xAD, 0x56,

    0x2B, 0x95, 0xCA, 0x65, 0x32, 0x19, 0x0C, 0x06, 0x83, 0xC1, 0x60, 0xB0,

    0xD8, 0xEC, 0x76, 0x3B, 0x9D, 0xCE, 0xE7, 0xF3, 0xF9, 0xFC, 0xFE, 0x7F,

    0xBF, 0xDF, 0x6F, 0xB7, 0x5B, 0xAD, 0xD6, 0xEB, 0x75, 0x3A, 0x9D, 0x4E,

    0xA7, 0x53, 0x29, 0x94, 0xCA, 0xE5, 0x72, 0xB9, 0x5C, 0xAE, 0xD7, 0xEB,

    0xF5, 0xFA, 0xFD, 0xFE, 0xFF, 0x7F, 0xBF, 0x5F, 0x02, 0x00, 0x00, 0x00,

    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x3F,

    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

    0x00, 0x00, 0x00, 0x00 };



public static int sub_B713BD(int a1) // 1.62

{

    return ((ushort)(-5331 * (9 * (a1 ^ ((a1 ^ 0x3D0000u) >> 16)) ^ (9 * (a1 ^ ((a1 ^ 0x3D0000) >> 16)) >> 4))) ^ (ushort)(668265261 * (9 * (a1 ^ ((a1 ^ 0x3D0000) >> 16)) ^ (9 * (a1 ^ ((a1 ^ 0x3D0000) >> 16)) >> 4)) >> 15)) & 0x7FFF;

}



public static int DecodePacket(byte[] packet, int size)

{

    int Result = 0;



    if (packet.Length != 0 && size >= 24)

    {

        int unknownVal = 0;

        int i = 24;

        int unknown_field0 = BitConverter.ToInt32(packet, 8);



        unknownVal = sub_B713BD(unknown_field0);



        do

        {

            packet[i] ^= byte_table[(i + unknownVal) & 0x7FF];

            ++i;

        }

        while (i <= packet[0]);



        Result = 1;

    }



    return Result;

}



public static int EncodePacket(byte[] packet, int size)

{

    int Result = 0;



    if (packet.Length != 0 && size >= 24)

    {

        int unknownVal = 0;

        int i = 24;

        int unknown_field0 = BitConverter.ToInt32(packet, 8);



        unknownVal = sub_B713BD(unknown_field0);



        do

        {

            packet[i] ^= byte_table[((ushort)i + unknownVal) & 0x7FF];

            ++i;

        }

        while (i <= BitConverter.ToInt16(packet, 0));



        Result = 1;

    }

    return Result;

}