/// <summary>
/// パスワードファイルとして、ファイルからSHA-256ハッシュを取得してバイト列にする
/// Get a string of the SHA-256 hash from a file such as the password file
/// </summary>
/// <param name="FilePath"></param>
/// <returns></returns>
private byte[] GetPasswordFileHash3(string FilePath)
{
byte[] result = new byte[32];
using (FileStream fs = new FileStream(FilePath, FileMode.Open, FileAccess.Read))
{
ReadOnlyCollection <byte> hash = Sha256.HashFile(fs);
for (int i = 0; i < 32; i++)
{
result[i] = hash[i];
}
return(result);
}
/*
* byte[] buffer = new byte[255];
* byte[] result = new byte[32];
*
* using (FileStream fs = new FileStream(FilePath, FileMode.Open, FileAccess.Read))
* {
* //SHA1CryptoServiceProviderオブジェクト
* using (SHA256CryptoServiceProvider sha256 = new SHA256CryptoServiceProvider())
* {
* byte[] array_bytes = sha256.ComputeHash(fs);
* for (int i = 0; i < 32; i++)
* {
* result[i] = array_bytes[i];
* }
* }
* }
* //string text = System.Text.Encoding.ASCII.GetString(result);
* return (result);
*/
}
/// <summary>
/// 計算してチェックサム（SHA-256）を得る
/// Get a check sum (SHA-256) to calculate
/// </summary>
/// <param name="dataToCalculate"></param>
/// <returns></returns>
public static string GetSha256FromFile(string FilePath)
{
using (FileStream fs = new FileStream(FilePath, FileMode.Open, FileAccess.Read))
{
ReadOnlyCollection <byte> hash = Sha256.HashFile(fs);
StringBuilder result = new StringBuilder();
result.Capacity = 32;
foreach (byte b in hash)
{
result.Append(b.ToString());
}
return(result.ToString());
}
}
private async void button1_Click(object sender, EventArgs e)
{
hashTextbox.Text = "";
DialogResult result = openFileDialog1.ShowDialog();
if (result == DialogResult.OK)
{
//Wyłączenie przycisków
button1.Enabled = false;
hashStringTexBox.Enabled = false;
hashing.Visible = true;
fileNameLabel.Text = openFileDialog1.FileName;
progressBar1.Maximum = 1000; // Aby zrobić progress bar płynny
FileStream fs = await Task.Run(() => File.OpenRead(openFileDialog1.FileName));
hashResult = await Task <string> .Run(() => Sha256.ByteArrayToString(Sha256.HashFile(fs,
(pr) =>
{
if (this.InvokeRequired)
{
this.BeginInvoke(new Action(() => { progressBar1.Value = (int)pr; })); //Synchronizacja wątku
}
})));
hashTextbox.Text = hashResult ?? null;
hashTextbox.SelectionStart = hashTextbox.Text.Length;
//Włączenie przycików
button1.Enabled = true;
hashStringTexBox.Enabled = true;
hashing.Visible = false;
}
}
static void Main(string[] args)
{
ReadOnlyCollection <byte> hash = Sha256.HashFile(File.OpenRead(@"foo.bin"));
System.Console.Out.WriteLine("{0}", Util.ArrayToString(hash));
}
static void Main(string[] args)
{
string s;
FileStream fs = new FileStream(@"C:\Users\aayum\Source\Repos\SHA2-Csharp\creation.txt", FileMode.Open, FileAccess.Read);
ReadOnlyCollection <byte> hash = Sha256.HashFile(fs);
long len = fs.Length;
System.Console.WriteLine("length : {0}", fs.Length);
fs.Close();
byte[] buff = new byte[len];
using (BinaryReader reader = new BinaryReader(new FileStream(@"C:\Users\aayum\Source\Repos\SHA2-Csharp\creation.txt", FileMode.Open)))
{
reader.BaseStream.Seek(0, SeekOrigin.Begin);
reader.Read(buff, 0, (int)len);
}
foreach (byte t in buff)
{
System.Console.WriteLine(t);
}
System.Console.Out.WriteLine("{0}", Util.ArrayToString(hash));
byte[] initialDump = File.ReadAllBytes(@"C:\Users\aayum\Source\Repos\SHA2-Csharp\creation.txt");
foreach (byte m in initialDump)
{
System.Console.WriteLine(m);
}
System.Console.WriteLine("Initial dump ends here!!!");
// System.Console.WriteLine(BitConverter.ToString(send));
//byte buffer = new byte[] { 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
var buffer = new byte[] { 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
// AppendAllBytes(@"C:\Users\aayum\Source\Repos\SHA2-Csharp\test.txt",buffer);
// using(StreamWriter sw = File.AppendText(@"C:\Users\aayum\Source\Repos\SHA2-Csharp\test.txt"))
// {
// sw.WriteLine("extra boyyyy!!!");
//}
//getInitialPadding n = new Sha2.getInitialPadding();
int[] l = new int[2];
l[0] = (int)len / 100;
l[1] = (int)len % 100;
buffer[63] = (byte)l[1];
buffer[62] = (byte)l[0];
byte[] x = new byte[512];
x = getInitialPadding.padding;
Array.Resize(ref x, getInitialPadding.padding.Length);
byte[] final = new byte[1024];
x.CopyTo(final, 0);
buffer.CopyTo(final, x.Length);
int i = x.Length + buffer.Length;
Array.Resize(ref final, x.Length + buffer.Length);
System.Console.WriteLine(BitConverter.ToString(x));
System.Console.WriteLine(BitConverter.ToString(final));
byte[] y = new byte[] { 0x1 };
AppendAllBytes(@"C:\Users\aayum\Source\Repos\SHA2-Csharp\creation.txt", y);
AppendAllBytes(@"C:\Users\aayum\Source\Repos\SHA2-Csharp\creation.txt", final);
System.Console.WriteLine("Appending done");
byte[] dump = File.ReadAllBytes(@"C:\Users\aayum\Source\Repos\SHA2-Csharp\creation.txt");
foreach (byte c in dump)
{
System.Console.WriteLine(c);
}
//System.Console.WriteLine(BitConverter.ToString(x));
//FileStream fs2 = new FileStream(@"C:\Users\aayum\Source\Repos\SHA2-Csharp\test.txt", FileMode.Open, FileAccess.Read);
//ReadOnlyCollection<byte> hash2 = Sha256.HashFile(fs);
//fs.Close();
//System.Console.Out.WriteLine("{0}", Util.ArrayToString(hash2));
//byte[] x2 = new byte[512];
//x2 = getInitialPadding.padding;
//Array.Resize(ref x, getInitialPadding.padding.Length);
//System.Console.WriteLine(BitConverter.ToString(x2));
System.Console.Read();
}
