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Разработка программы "Формирование и проверка контрольной суммы кластеров" (стр. 5 из 5)

}

for (int i = 0; i < zeros; i++)

{

bs.Add((byte)0);

}

UInt64 N = (UInt64)n * 8;

byte h1 = (byte)(N & 0xFF);

byte h2 = (byte)((N >> 8) & 0xFF);

byte h3 = (byte)((N >> 16) & 0xFF);

byte h4 = (byte)((N >> 24) & 0xFF);

byte h5 = (byte)((N >> 32) & 0xFF);

byte h6 = (byte)((N >> 40) & 0xFF);

byte h7 = (byte)((N >> 48) & 0xFF);

byte h8 = (byte)(N >> 56);

bs.Add(h1);

bs.Add(h2);

bs.Add(h3);

bs.Add(h4);

bs.Add(h5);

bs.Add(h6);

bs.Add(h7);

bs.Add(h8);

byte[] ts = (byte[])bs.ToArray(typeof(byte));

// Декодинг input (byte[]) в output (UInt32[])

UInt32[] output = new UInt32[size / 4];

for (Int64 i = 0, j = 0; i < size; j++, i += 4)

{

output[j] = (UInt32)(ts[i] | ts[i + 1] << 8 | ts[i + 2] << 16 | ts[i + 3] << 24);

}

return output;

}

private static UInt32[] MD5_Trasform(UInt32[] x)

{

UInt32 a, b, c, d;

for (int k = 0; k < x.Length; k += 16)

{

a = A;

b = B;

c = C;

d = D;

/* Раунд1 */

FF(ref a, b, c, d, x[k + 0], S11, 0xd76aa478); /* 1 */

FF(ref d, a, b, c, x[k + 1], S12, 0xe8c7b756); /* 2 */

FF(ref c, d, a, b, x[k + 2], S13, 0x242070db); /* 3 */

FF(ref b, c, d, a, x[k + 3], S14, 0xc1bdceee); /* 4 */

FF(ref a, b, c, d, x[k + 4], S11, 0xf57c0faf); /* 5 */

FF(ref d, a, b, c, x[k + 5], S12, 0x4787c62a); /* 6 */

FF(ref c, d, a, b, x[k + 6], S13, 0xa8304613); /* 7 */

FF(ref b, c, d, a, x[k + 7], S14, 0xfd469501); /* 8 */

FF(ref a, b, c, d, x[k + 8], S11, 0x698098d8); /* 9 */

FF(ref d, a, b, c, x[k + 9], S12, 0x8b44f7af); /* 10 */

FF(ref c, d, a, b, x[k + 10], S13, 0xffff5bb1); /* 11 */

FF(ref b, c, d, a, x[k + 11], S14, 0x895cd7be); /* 12 */

FF(ref a, b, c, d, x[k + 12], S11, 0x6b901122); /* 13 */

FF(ref d, a, b, c, x[k + 13], S12, 0xfd987193); /* 14 */

FF(ref c, d, a, b, x[k + 14], S13, 0xa679438e); /* 15 */

FF(ref b, c, d, a, x[k + 15], S14, 0x49b40821); /* 16 */

/* Раунд2 */

GG(ref a, b, c, d, x[k + 1], S21, 0xf61e2562); /* 17 */

GG(ref d, a, b, c, x[k + 6], S22, 0xc040b340); /* 18 */

GG(ref c, d, a, b, x[k + 11], S23, 0x265e5a51); /* 19 */

GG(ref b, c, d, a, x[k + 0], S24, 0xe9b6c7aa); /* 20 */

GG(ref a, b, c, d, x[k + 5], S21, 0xd62f105d); /* 21 */

GG(ref d, a, b, c, x[k + 10], S22, 0x2441453); /* 22 */

GG(ref c, d, a, b, x[k + 15], S23, 0xd8a1e681); /* 23 */

GG(ref b, c, d, a, x[k + 4], S24, 0xe7d3fbc8); /* 24 */

GG(ref a, b, c, d, x[k + 9], S21, 0x21e1cde6); /* 25 */

GG(ref d, a, b, c, x[k + 14], S22, 0xc33707d6); /* 26 */

GG(ref c, d, a, b, x[k + 3], S23, 0xf4d50d87); /* 27 */

GG(ref b, c, d, a, x[k + 8], S24, 0x455a14ed); /* 28 */

GG(ref a, b, c, d, x[k + 13], S21, 0xa9e3e905); /* 29 */

GG(ref d, a, b, c, x[k + 2], S22, 0xfcefa3f8); /* 30 */

GG(ref c, d, a, b, x[k + 7], S23, 0x676f02d9); /* 31 */

GG(ref b, c, d, a, x[k + 12], S24, 0x8d2a4c8a); /* 32 */

/* Раунд3 */

HH(ref a, b, c, d, x[k + 5], S31, 0xfffa3942); /* 33 */

HH(ref d, a, b, c, x[k + 8], S32, 0x8771f681); /* 34 */

HH(ref c, d, a, b, x[k + 11], S33, 0x6d9d6122); /* 35 */

HH(ref b, c, d, a, x[k + 14], S34, 0xfde5380c); /* 36 */

HH(ref a, b, c, d, x[k + 1], S31, 0xa4beea44); /* 37 */

HH(ref d, a, b, c, x[k + 4], S32, 0x4bdecfa9); /* 38 */

HH(ref c, d, a, b, x[k + 7], S33, 0xf6bb4b60); /* 39 */

HH(ref b, c, d, a, x[k + 10], S34, 0xbebfbc70); /* 40 */

HH(ref a, b, c, d, x[k + 13], S31, 0x289b7ec6); /* 41 */

HH(ref d, a, b, c, x[k + 0], S32, 0xeaa127fa); /* 42 */

HH(ref c, d, a, b, x[k + 3], S33, 0xd4ef3085); /* 43 */

HH(ref b, c, d, a, x[k + 6], S34, 0x4881d05); /* 44 */

HH(ref a, b, c, d, x[k + 9], S31, 0xd9d4d039); /* 45 */

HH(ref d, a, b, c, x[k + 12], S32, 0xe6db99e5); /* 46 */

HH(ref c, d, a, b, x[k + 15], S33, 0x1fa27cf8); /* 47 */

HH(ref b, c, d, a, x[k + 2], S34, 0xc4ac5665); /* 48 */

/* Раунд4 */

II(ref a, b, c, d, x[k + 0], S41, 0xf4292244); /* 49 */

II(ref d, a, b, c, x[k + 7], S42, 0x432aff97); /* 50 */

II(ref c, d, a, b, x[k + 14], S43, 0xab9423a7); /* 51 */

II(ref b, c, d, a, x[k + 5], S44, 0xfc93a039); /* 52 */

II(ref a, b, c, d, x[k + 12], S41, 0x655b59c3); /* 53 */

II(ref d, a, b, c, x[k + 3], S42, 0x8f0ccc92); /* 54 */

II(ref c, d, a, b, x[k + 10], S43, 0xffeff47d); /* 55 */

II(ref b, c, d, a, x[k + 1], S44, 0x85845dd1); /* 56 */

II(ref a, b, c, d, x[k + 8], S41, 0x6fa87e4f); /* 57 */

II(ref d, a, b, c, x[k + 15], S42, 0xfe2ce6e0); /* 58 */

II(ref c, d, a, b, x[k + 6], S43, 0xa3014314); /* 59 */

II(ref b, c, d, a, x[k + 13], S44, 0x4e0811a1); /* 60 */

II(ref a, b, c, d, x[k + 4], S41, 0xf7537e82); /* 61 */

II(ref d, a, b, c, x[k + 11], S42, 0xbd3af235); /* 62 */

II(ref c, d, a, b, x[k + 2], S43, 0x2ad7d2bb); /* 63 */

II(ref b, c, d, a, x[k + 9], S44, 0xeb86d391); /* 64 */

A += a;

B += b;

C += c;

D += d;

}

return new UInt32[] { A, B, C, D };

}

private static byte[] MD5Array(byte[] input)

{

MD5_Init();

UInt32[] block = MD5_Append(input);

UInt32[] bits = MD5_Trasform(block);

// Кодирует bits (UInt32[]) в output (byte[]).

byte[] output = new byte[bits.Length * 4];

for (int i = 0, j = 0; i < bits.Length; i++, j += 4)

{

output[j] = (byte)(bits[i] & 0xff);

output[j + 1] = (byte)((bits[i] >> 8) & 0xff);

output[j + 2] = (byte)((bits[i] >> 16) & 0xff);

output[j + 3] = (byte)((bits[i] >> 24) & 0xff);

}

return output;

}

private static string ArrayToHexString(byte[] array, bool uppercase)

{

string hexString = "";

string format = "x2";

if (uppercase)

{

format = "X2";

}

foreach (byte b in array)

{

hexString += b.ToString(format);

}

return hexString;

}

private static string MD5File(string fileName)

{

FileStream fs = File.Open(fileName, FileMode.Open, FileAccess.Read);

byte[] array = new byte[fs.Length];

fs.Read(array, 0, (int)fs.Length);

byte[] digest = MD5Array(array);

fs.Close();

return ArrayToHexString(digest, false);

}

}

}

//HardDrive.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace kurs_pogulyat

{

class HardDrive

{

private string model = "";

private string type = "";

private string serialNo = "";

private string bytesPerSector = "";

private string mediaType = "";

private string partitions = "";

private string sectorsPerTrack = "";

private string signature = "";

private string size = "";

private string freespace = "";

private string status = "";

private string totalCylinders = "";

private string totalHeads = "";

private string totalSectors = "";

private string totalTracks = "";

private string tracksPerCylinder = "";

private string firmwareRevision = "";

public string Model

{

get { return model; }

set { model = value; }

}

public string Type

{

get { return type; }

set { type = value; }

}

public string SerialNo

{

get { return serialNo; }

set { serialNo = value; }

}

public string BytesPerSector

{

get { return bytesPerSector; }

set { bytesPerSector = value; }

}

public string MediaType

{

get { return mediaType; }

set { mediaType = value; }

}

public string Partitions

{

get { return partitions; }

set { partitions = value; }

}

public string SectorsPerTrack

{

get { return sectorsPerTrack; }

set { sectorsPerTrack = value; }

}

public string Signature

{

get { return signature; }

set { signature = value; }

}

public string Size

{

get { return size; }

set { size = value; }

}

public string FreeSpace

{

get { return freespace; }

set { freespace = value; }

}

public string Status

{

get { return status; }

set { status = value; }

}

public string TotalCylinders

{

get { return totalCylinders; }

set { totalCylinders = value; }

}

public string TotalHeads

{

get { return totalHeads; }

set { totalHeads = value; }

}

public string TotalSectors

{

get { return totalSectors; }

set { totalSectors = value; }

}

public string TotalTracks

{

get { return totalTracks; }

set { totalTracks = value; }

}

public string TracksPerCylinder

{

get { return tracksPerCylinder; }

set { tracksPerCylinder = value; }

}

public string FirmwareRevision

{

get { return firmwareRevision; }

set { firmwareRevision = value; }

} }

}

//Program.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Windows.Forms;

namespace kurs_pogulyat

{

static class Program

{

[STAThread]

static void Main()

{

Application.EnableVisualStyles();

Application.SetCompatibleTextRenderingDefault(false);

Application.Run(new Form1());

}

}

}