private String AskQuestions(String userID, String email)
{
Core core = new Core(Server.passphrase);
DatabaseConnection connection = new DatabaseConnection();
String dbUserid = connection.getUserID(email);
connection.close();
if (userID == null)
{
ErrorLog_Write(email + ": Email does not exist!");
Console.WriteLine(email + ": Email does not exist!");
throw new Exception("Invalid user");
}
if (userID != dbUserid)
{
ErrorLog_Write(email + ": User id does not exist!");
Console.WriteLine(email + ": User id does not exist!");
throw new Exception("Invalid user");
}
String questions = core.ReadSettingsFile();
Message result = new Message(questions);
result.Sign(core.PrivateKey);
return(result.ToString());
}
private void SignDetached(String filename, String passphrase, String outfile)
{
try
{
core.InitializeKeys(passphrase);
}
catch
{
Console.Error.WriteLine("Invalid passphrase");
return;
}
Message message = new Message(File.ReadAllBytes(filename));
message.Sign(core.PrivateKey, false);
if (Util.Write(outfile, message.getSignature(), true))
{
Console.Error.WriteLine("Output written to {0}", outfile);
}
}
private void Sign(String filename, String passphrase)
{
try
{
core.InitializeKeys(passphrase);
}
catch
{
Console.Error.WriteLine("Invalid passphrase");
return;
}
String outFile = filename + ".pses";
Message message = new Message(File.ReadAllText(filename, Encoding.UTF8));
message.Sign(core.PrivateKey);
if (Util.Write(outFile, message.ToString()))
{
Console.Error.WriteLine("Output written to {0}", outFile);
}
}
public String KeyObt(String email, DateTime date) //get public key of a user ( complete )
{
ActionLog_Write(email + ": KeyObt");
Console.WriteLine(beginProtocol);
Console.WriteLine(email + ": KeyObt");
int index = email.IndexOf('@');
String domainName = email.Substring(index, email.Length - index);
String publicKey = null;
Core core = new Core(Server.passphrase);
if (core.GetXmlNodeInnerText("domain") == domainName)
{
DatabaseConnection connection = new DatabaseConnection();
publicKey = connection.getPublicKey(email, date);
connection.close();
}
else
{
byte[] rawCertData = Certificate.SearchCertificate(domainName);
if (rawCertData == null)
{
if (ConnectRootServer(core.GetXmlNodeInnerText("root_server")))
{
if (GetCertificate(domainName))
{
rawCertData = Certificate.SearchCertificate(domainName);
}
}
}
byte[] foreignServerCertPK = Certificate.GetPublicKey(rawCertData);
String foreignServerXmlPK = Crypto.CertToXMLKey(foreignServerCertPK);
Console.WriteLine("Public key of " + domainName + ":\n" + foreignServerXmlPK);
String foreignServerHost = Certificate.GetHostName(rawCertData);
ActionLog_Write("Connecting to foreign PractiSES server (" + foreignServerHost + ")...");
Console.WriteLine("Connecting to foreign PractiSES server ({0})...", foreignServerHost);
IServer foreignServer = (IServer)Activator.GetObject(typeof(IServer), "http://" + foreignServerHost + "/PractiSES");
String signedPublicKey = foreignServer.KeyObt(email, date);
if (signedPublicKey != null)
{
Message foreignmessage = new Message(signedPublicKey);
//****************
if (foreignmessage.Verify(foreignServerXmlPK))
{
publicKey = foreignmessage.getCleartext();
}
//****************
}
}
if (publicKey == null)
{
ActionLog_Write("Error - " + email + ": Email does not exist!");
Console.WriteLine("Error - " + email + ": Email does not exist!");
throw new Exception("Invalid user");
}
Message message = new Message(publicKey);
message.AddComment("Email", email);
message.Sign(core.PrivateKey);
String result = message.ToString();
return(result);
}
private void SignDetached(String filename, String passphrase, String outfile)
{
try
{
core.InitializeKeys(passphrase);
}
catch
{
Console.Error.WriteLine("Invalid passphrase");
return;
}
Message message = new Message(File.ReadAllBytes(filename));
message.Sign(core.PrivateKey, false);
if (Util.Write(outfile, message.getSignature(), true))
{
Console.Error.WriteLine("Output written to {0}", outfile);
}
}
private void Sign(String filename, String passphrase)
{
try
{
core.InitializeKeys(passphrase);
}
catch
{
Console.Error.WriteLine("Invalid passphrase");
return;
}
String outFile = filename + ".pses";
Message message = new Message(File.ReadAllText(filename, Encoding.UTF8));
message.Sign(core.PrivateKey);
if (Util.Write(outFile, message.ToString()))
{
Console.Error.WriteLine("Output written to {0}", outFile);
}
}
//get public key of a user ( complete )
public String KeyObt(String email, DateTime date)
{
ActionLog_Write(email + ": KeyObt");
Console.WriteLine(beginProtocol);
Console.WriteLine(email + ": KeyObt");
int index = email.IndexOf('@');
String domainName = email.Substring(index, email.Length - index);
String publicKey = null;
Core core = new Core(Server.passphrase);
if (core.GetXmlNodeInnerText("domain") == domainName)
{
DatabaseConnection connection = new DatabaseConnection();
publicKey = connection.getPublicKey(email, date);
connection.close();
}
else
{
byte[] rawCertData = Certificate.SearchCertificate(domainName);
if (rawCertData == null)
{
if (ConnectRootServer(core.GetXmlNodeInnerText("root_server")))
{
if (GetCertificate(domainName))
{
rawCertData = Certificate.SearchCertificate(domainName);
}
}
}
byte[] foreignServerCertPK = Certificate.GetPublicKey(rawCertData);
String foreignServerXmlPK = Crypto.CertToXMLKey(foreignServerCertPK);
Console.WriteLine("Public key of " + domainName + ":\n" + foreignServerXmlPK);
String foreignServerHost = Certificate.GetHostName(rawCertData);
ActionLog_Write("Connecting to foreign PractiSES server (" + foreignServerHost + ")...");
Console.WriteLine("Connecting to foreign PractiSES server ({0})...", foreignServerHost);
IServer foreignServer = (IServer)Activator.GetObject(typeof(IServer), "http://" + foreignServerHost + "/PractiSES");
String signedPublicKey = foreignServer.KeyObt(email, date);
if (signedPublicKey != null)
{
Message foreignmessage = new Message(signedPublicKey);
//****************
if (foreignmessage.Verify(foreignServerXmlPK))
{
publicKey = foreignmessage.getCleartext();
}
//****************
}
}
if (publicKey == null)
{
ActionLog_Write("Error - " + email + ": Email does not exist!");
Console.WriteLine("Error - " + email + ": Email does not exist!");
throw new Exception("Invalid user");
}
Message message = new Message(publicKey);
message.AddComment("Email",email);
message.Sign(core.PrivateKey);
String result = message.ToString();
return result;
}
private String AskQuestions(String userID, String email)
{
Core core = new Core(Server.passphrase);
DatabaseConnection connection = new DatabaseConnection();
String dbUserid = connection.getUserID(email);
connection.close();
if (userID == null)
{
ErrorLog_Write(email + ": Email does not exist!");
Console.WriteLine(email + ": Email does not exist!");
throw new Exception("Invalid user");
}
if (userID != dbUserid)
{
ErrorLog_Write(email + ": User id does not exist!");
Console.WriteLine(email + ": User id does not exist!");
throw new Exception("Invalid user");
}
String questions = core.ReadSettingsFile();
Message result = new Message(questions);
result.Sign(core.PrivateKey);
return result.ToString();
}
