public Boolean Decreypt(string encrypt, int ID)
{
//Get Public File
GetKey objKey = new GetKey();
DataRow drKey = objKey.drSearchStudentKey(ID);
string PublicKey1 = drKey[0].ToString();
// obtain an OpenPGP signed message
String signedString = encrypt;
// Extract the message and check the validity of the signature
String plainText;
// create an instance of the library
PGPLib pgp = new PGPLib();
SignatureCheckResult signatureCheck;
try
{
signatureCheck = pgp.VerifyString(signedString,
new FileInfo(PublicKey1), out plainText);
}
catch
{
return(false);
}
string strData1 = plainText;
// Print the results
Console.WriteLine("Extracted plain text message is " + plainText);
if (signatureCheck == SignatureCheckResult.SignatureVerified)
{
// Console.WriteLine("Signature OK");
return(true);
}
else if (signatureCheck == SignatureCheckResult.SignatureBroken)
{
//Console.WriteLine("Signature of the message is either broken or forged");
return(false);
}
else if (signatureCheck == SignatureCheckResult.PublicKeyNotMatching)
{
// Console.WriteLine("The provided public key doesn't match the signature");
return(false);
}
else if (signatureCheck == SignatureCheckResult.NoSignatureFound)
{
// Console.WriteLine("This message is not digitally signed");
return(false);
}
return(false);
}
public void Decreypt(string encrypt)
{
//Get Public File
GetKey objKey = new GetKey();
int ID = Convert.ToInt32(Session["ID"].ToString());
DataRow drKey = objKey.drSearchStudentKey(ID);
string PublicKey1 = drKey[0].ToString();
// obtain an OpenPGP signed message
String signedString = encrypt;
// Extract the message and check the validity of the signature
String plainText;
// create an instance of the library
PGPLib pgp = new PGPLib();
//SignatureCheckResult signatureCheck = pgp.VerifyString(signedString,
// new FileInfo(@"C:\Users\Dua'a-Orcas\Desktop\finalProject\WebApplication1 - Copy (2)\WebApplication1\Sig\public_key_exported.asc"),
// out plainText);
SignatureCheckResult signatureCheck = pgp.VerifyString(signedString,
new FileInfo(PublicKey1), out plainText);
string strData1 = plainText;
// Print the results
Console.WriteLine("Extracted plain text message is " + plainText);
if (signatureCheck == SignatureCheckResult.SignatureVerified)
{
Console.WriteLine("Signature OK");
Result = true;
}
else if (signatureCheck == SignatureCheckResult.SignatureBroken)
{
Console.WriteLine("Signature of the message is either broken or forged");
}
else if (signatureCheck == SignatureCheckResult.PublicKeyNotMatching)
{
Console.WriteLine("The provided public key doesn't match the signature");
}
else if (signatureCheck == SignatureCheckResult.NoSignatureFound)
{
Console.WriteLine("This message is not digitally signed");
}
}
protected void btnSave_Click(object sender, EventArgs e)
{
int ID = Convert.ToInt32(Session["ID"].ToString());
string password = txtPassword.Text.ToString();
string Email = labEmail.Text.ToString();
SignatureStudents objj = new SignatureStudents();
objj.CreateSignature(password, Email, ID);
string pathPub = System.Web.HttpContext.Current.Server.MapPath("../PageStudents/Sig") + "/" + ID + ".asc";
string PrivateKey = "Sig/" + ID + "pr" + ".asc";
GetKey objKey = new GetKey();
objKey.AddKeyStudent(pathPub, ID);
downloadfile(PrivateKey);
}
protected void btnSave_Click(object sender, EventArgs e)
{
int ID = Convert.ToInt32(Session["ID"].ToString());
Studnets loginStudent = new Studnets();
DataRow loginS = loginStudent.drSearchStudentEmail(ID);
string password = null;
string Email = null;
if (loginS != null)
{
password = loginS["Password"].ToString();
Email = loginS["Email"].ToString();
}
//string password ="******";
//string Email = "duaa.tan @gmail.com";
CreateSignature(password, Email, ID);
string PublicKey = "C:/Users/Dua'a-Orcas/Desktop/WebApplication1/WebApplication1/WebApplication1/PageStudents/Sig/" + ID + ".asc";
string PrivateKey = "Sig/" + ID + "pr" + ".asc";
string PublicKey1 = "Sig/" + ID + ".asc";
GetKey objKey = new GetKey();
objKey.AddKeyStudent(PublicKey, ID);
downloadfile(PrivateKey);
}
