static void Main(string[] args)
{
try
{
Logger.Initialize();
byte[] data = "Hello world".GetBytes();
SignKeys signKeys = DataSigner.GenerateSignKeyPair();
byte[] signature = DataSigner.Sign(data, signKeys.PublicAndPrivate);
bool valid = DataSigner.IsSignatureValid(data, signature, signKeys.PublicOnly);
Console.WriteLine(valid ? "Valid" : "NOT Valid");
data[0] = 41;
valid = DataSigner.IsSignatureValid(data, signature, signKeys.PublicOnly);
Console.WriteLine(valid ? "Valid" : "NOT Valid");
data[0] = "H".GetBytes()[0];
valid = DataSigner.IsSignatureValid(data, signature, signKeys.PublicOnly);
Console.WriteLine(valid ? "Valid" : "NOT Valid");
}
catch (Exception e)
{
Logger.LogError("Unhandled exception", e);
Console.WriteLine("Error: " + e.Message);
}
Console.WriteLine("Press a key to exit");
Console.ReadKey();
}
private void buttonGenerateAndSaveMasterKeypair_Click(object sender, EventArgs e)
{
try
{
if (string.IsNullOrEmpty(this.textBoxDOUsername.Text))
{
MessageBox.Show("You must enter a DO user name");
return;
}
if (string.IsNullOrEmpty(this.textBoxDORoleName.Text))
{
MessageBox.Show("You must enter a DO role name");
return;
}
IPreService proxy = GetPreProxy();
this.masterKeypair = proxy.GenerateKeyPair();
SignKeys doSignKeyPair = DataSigner.GenerateSignKeyPair();
proxy = GetPreProxy();
byte[] doUserName = proxy.Encrypt(this.masterKeypair.Public, this.textBoxDOUsername.Text.GetBytes());
proxy = GetPreProxy();
byte[] doRoleName = proxy.Encrypt(this.masterKeypair.Public, this.textBoxDORoleName.Text.GetBytes());
IGatewayService gwProxy = GetServiceProxy();
gwProxy.InitializeSystem(this.myId, doUserName, doRoleName, doSignKeyPair.PublicOnly);
string filename = FileDialogs.AskUserForFileNameToSaveIn();
if (!string.IsNullOrEmpty(filename))
{
if (!Path.HasExtension(filename))
{
filename = filename + ".xml";
}
KeyCollection keys = new KeyCollection();
keys.MasterPublicKey = Convert.ToBase64String(this.masterKeypair.Public);
keys.MasterPrivateKey = Convert.ToBase64String(this.masterKeypair.Private);
keys.PrivateKey = keys.MasterPrivateKey;
keys.PublicKey = keys.MasterPublicKey;
keys.SignKeys = Convert.ToBase64String(doSignKeyPair.PublicAndPrivate);
XmlFile.WriteFile(keys, filename);
this.labelKeyStatus.Text = "Keys including MASTER KEYS loaded";
MessageBox.Show("Done");
}
}
catch (Exception ex)
{
MessageBox.Show("Error: " + ex.Message);
Logger.LogError("Error generating master keypair", ex);
}
}
private void buttonGenerateKeypairsForUser_Click(object sender, EventArgs e)
{
try
{
if (string.IsNullOrEmpty(this.textBoxNewUserId.Text))
{
MessageBox.Show("You must enter a username");
return;
}
this.newUserId = GuidCreator.CreateGuidFromString(this.textBoxNewUserId.Text);
if (this.masterKeypair == null)
{
MessageBox.Show("You must load master key pair first");
return;
}
string filename = FileDialogs.AskUserForFileNameToSaveIn();
if (!string.IsNullOrEmpty(filename))
{
if (!Path.HasExtension(filename))
{
filename = filename + ".xml";
}
this.signKeyPair = DataSigner.GenerateSignKeyPair();
IPreService proxy = GetPreProxy();
this.userKeypair = proxy.GenerateKeyPair();
proxy = GetPreProxy();
this.delegationToken.ToUser = proxy.GenerateDelegationKey(this.masterKeypair.Private, this.userKeypair.Public);
IGatewayService gateWayproxy = GetServiceProxy();
gateWayproxy.RegisterUser(this.myId, this.newUserId, this.delegationToken, this.signKeyPair.PublicOnly);
UserKeys uk = new UserKeys();
uk.MasterKeyPublicKey = Convert.ToBase64String(this.masterKeypair.Public);
uk.UserPrivateKey = Convert.ToBase64String(this.userKeypair.Private);
uk.UserSignKeys = Convert.ToBase64String(this.signKeyPair.PublicAndPrivate);
XmlFile.WriteFile(uk, filename);
MessageBox.Show("Done");
}
}
catch (Exception ex)
{
MessageBox.Show("Error: " + ex.Message);
Logger.LogError("Error generating user keypair", ex);
}
}
public static SignKeys GenerateSignKeyPair()
{
SignKeys keys = new SignKeys();
using (DSACryptoServiceProvider dsa = new DSACryptoServiceProvider())
{
keys.PublicAndPrivate = dsa.ExportCspBlob(true);
keys.PublicOnly = dsa.ExportCspBlob(false);
}
return(keys);
}
private void buttonCreateUser_Click(object sender, EventArgs e)
{
try
{
if (this.treeViewRoles.SelectedNode == null ||
!(this.treeViewRoles.SelectedNode.Tag is RoleDescription))
{
return;
}
if (string.IsNullOrEmpty(this.textBoxNewUserName.Text))
{
MessageBox.Show("You must enter a username");
return;
}
Guid newUserId = GuidCreator.CreateGuidFromString(this.textBoxNewUserName.Text);
if (this.masterKeypair == null && this.keyPair == null)
{
MessageBox.Show("You must load your key pair first");
return;
}
string filename = FileDialogs.AskUserForFileNameToSaveIn();
if (!string.IsNullOrEmpty(filename))
{
if (!Path.HasExtension(filename))
{
filename = filename + ".xml";
}
SignKeys userSignKeyPair = DataSigner.GenerateSignKeyPair();
IPreService proxy;
KeyPair userKeypair;
DelegationToken userDelegationToken;
if (this.masterKeypair != null)
{
proxy = GetPreProxy();
userKeypair = proxy.GenerateKeyPair();
userDelegationToken = new DelegationToken();
proxy = GetPreProxy();
userDelegationToken.ToUser = proxy.GenerateDelegationKey(this.masterKeypair.Private, userKeypair.Public);
}
else
{
userKeypair = this.keyPair; // I am not a DO, so when creating a new user then reuse my key
userDelegationToken = null; // I do not know my own delegation key. The server will put it in for me.
}
proxy = GetPreProxy();
byte[] username = proxy.Encrypt(this.keyPair.Public, this.textBoxNewUserName.Text.GetBytes());
User user = new User();
user.DelegationToken = userDelegationToken;
user.Id = newUserId;
user.Name = username;
user.SignPublicKey = userSignKeyPair.PublicOnly;
RoleDescription role = (RoleDescription)this.treeViewRoles.SelectedNode.Tag;
IGatewayService gateWayproxy = GetServiceProxy();
gateWayproxy.CreateUser(this.myId, role.Id, user);
KeyCollection uk = new KeyCollection();
uk.PublicKey = Convert.ToBase64String(this.keyPair.Public); // use original DO public key
uk.PrivateKey = Convert.ToBase64String(userKeypair.Private);
uk.SignKeys = Convert.ToBase64String(userSignKeyPair.PublicAndPrivate);
XmlFile.WriteFile(uk, filename);
buttonRefreshRolesAndUsers_Click(this, EventArgs.Empty);
}
}
catch (Exception ex)
{
MessageBox.Show("Error: " + ex.Message);
Logger.LogError("Error generating user keypair", ex);
}
}
