public static string EncryptPassword(string password)
{
byte[] passwordBytes = Encoding.UTF8.GetBytes(password);
using (SHA256CryptoServiceProvider sha256 = new SHA256CryptoServiceProvider())
{
sha256.TransformFinalBlock(passwordBytes, 0, passwordBytes.Length);
return(Encoding.UTF8.GetString(sha256.Hash));
}
}
static void Main3(string[] args)
{
var buf = new byte[0];
var sha256 = new SHA256CryptoServiceProvider();
sha256.TransformFinalBlock(buf, 0, 0);
var tester = new AutoTest();
tester.Test();
const string ftp_uri = "ftp://100.100.100.145/config/System Variables.sys";
var request = (FtpWebRequest)WebRequest.Create(ftp_uri);
request.Credentials = new NetworkCredential("anon", "12345");
request.UseBinary = true;
request.UsePassive = true;
request.KeepAlive = false;
request.Method = WebRequestMethods.Ftp.DownloadFile;
var rsp = request.GetResponse();
Console.WriteLine("Got Response:");
using (var reader = new StreamReader(rsp.GetResponseStream()))
{
Console.WriteLine(reader.ReadToEnd());
}
Console.WriteLine("\n\n\n\n\n");
Console.WriteLine("Absolute File URI");
var uri = new Uri("C:\\foo\\bar.txt");
ShowProps(uri);
//Console.WriteLine("Relative File URI");
//var uri3 = new Uri("\\foo\\..\\..\\bar.txt", UriKind.Absolute);
//ShowProps(uri3);
Console.WriteLine("\nFTP URI");
var uri2 = new Uri(ftp_uri.ToUpper());
ShowProps(uri2);
Console.WriteLine("\n\n\n\n\n");
var eng = new FileVerifier.FVEngine();
var cs = eng.AddFileAuto(ftp_uri, "C:\\ftp\\out.txt");
Console.WriteLine(cs);
foreach (var item in eng.GetData())
{
Console.WriteLine($"{item.Key}: {item.Value}");
}
}
public string GenerateHash()
{
string Reason = "Motivo";
string Location = "Localização";
string Contact = "Contato";
string signatureFieldName = null;
appearance.SetVisibleSignature(new Rectangle(500, 150, 400, 200), 1, signatureFieldName);
appearance.SignDate = DateTime.Now;
appearance.Reason = Reason;
appearance.Location = Location;
appearance.Contact = Contact;
StringBuilder buf = new StringBuilder();
buf.Append("Digitally signed by");
buf.Append("\n");
buf.Append(userName);
buf.Append("\n");
buf.Append("Date: " + appearance.SignDate);
appearance.Layer2Text = buf.ToString();
appearance.Acro6Layers = true;
appearance.CertificationLevel = 0;
PdfSignature dic = GeneratePdfSignature();
appearance.CryptoDictionary = dic;
Dictionary <PdfName, int> exclusionSizes = new Dictionary <PdfName, int>();
exclusionSizes.Add(PdfName.CONTENTS, (RESERVED_SPACE_SIGNATURE * 2) + 2);
appearance.PreClose(exclusionSizes);
HashAlgorithm sha = new SHA256CryptoServiceProvider();
Stream s = appearance.GetRangeStream();
int read = 0;
byte[] buff = new byte[0x2000];
while ((read = s.Read(buff, 0, 0x2000)) > 0)
{
sha.TransformBlock(buff, 0, read, buff, 0);
}
sha.TransformFinalBlock(buff, 0, 0);
StringBuilder hex = new StringBuilder(sha.Hash.Length * 2);
foreach (byte b in sha.Hash)
{
hex.AppendFormat("{0:x2}", b);
}
return(hex.ToString());
}
private string Gethash(string name)
{
// 進行状況を表示するための設定や変数
int percent = 0;
// ファイルをUTF-8エンコードでバイト配列化
byte[] byteValue = File.ReadAllBytes(name);
// SHA256のハッシュ値を取得する
using (SHA256 crypto = new SHA256CryptoServiceProvider())
{
int length = byteValue.Length;
decimal doneSize = 0;
for (int offset = 0; offset < length; offset += blockSize)
{
if (offset + blockSize < length)
{
crypto.TransformBlock(byteValue, offset, blockSize, null, 0);
doneSize = offset + blockSize;
}
else
{
crypto.TransformFinalBlock(byteValue, offset, length - offset);
doneSize = length;
}
if (percent != doneSize * 100 / length)
{
percent = (int)(doneSize * 100 / length);
Dispatcher.Invoke(() =>
{
dl_ProgressBar.Value = percent;
dl_progress_label.Content = $"{percent}%";
});
}
}
byte[] hashValue = crypto.Hash;
StringBuilder hashedText = new StringBuilder();
for (int i = 0; i < hashValue.Length; i++)
{
hashedText.AppendFormat("{0:X2}", hashValue[i]);
}
return(hashedText.ToString());
}
}
//schimbare functie pentru iText
private string generateHash()
{
appearance.SetVisibleSignature(new Rectangle(500, 150, 400, 200), 1, "signature");
appearance.SignDate = DateTime.Now;
appearance.Reason = "Test Licenta";
appearance.Location = "Bucuresti";
appearance.Contact = "mta";
StringBuilder buf = new StringBuilder();
buf.Append("Semnat digital de");
buf.Append("\n");
buf.Append(userName);
buf.Append("\n");
buf.Append("Date: " + appearance.SignDate);
appearance.Layer2Text = buf.ToString();
appearance.Acro6Layers = true;
appearance.CertificationLevel = 0;
PdfSignature dic = new PdfSignature(PdfName.ADOBE_PPKLITE, PdfName.ADBE_PKCS7_DETACHED)
{
Date = new PdfDate(appearance.SignDate),
Name = userName
};
dic.Reason = appearance.Reason;
dic.Location = appearance.Location;
dic.Contact = appearance.Contact;
appearance.CryptoDictionary = dic;
Dictionary <PdfName, int> exclusionSizes = new Dictionary <PdfName, int>();
exclusionSizes.Add(PdfName.CONTENTS, (csize * 2) + 2);
appearance.PreClose(exclusionSizes);
HashAlgorithm sha = new SHA256CryptoServiceProvider();
Stream s = appearance.GetRangeStream();
int read = 0;
byte[] buff = new byte[0x2000];
while ((read = s.Read(buff, 0, 0x2000)) > 0)
{
sha.TransformBlock(buff, 0, read, buff, 0);
}
sha.TransformFinalBlock(buff, 0, 0);
return(System.Convert.ToBase64String(sha.Hash));
}
private void ButtonTransformFinalBlock_Click(object sender, EventArgs e)
{
byte[] data = Encoding.UTF8.GetBytes(textBoxLastInputData.Text);
sha256.TransformFinalBlock(data, 0, data.Length);
textBoxHashBytes.Text = BitConverter.ToString(sha256.Hash);
if (textBoxHashBytes.Text != BitConverter.ToString(ComputeHashTest()))
{
MessageBox.Show("Error!");
}
else
{
MessageBox.Show("Hash identicos");
}
sha256.Dispose();
}
