private static RsaKeyPair GetRsaKeyPair(RSA rsa, string comment)
{
const string sshrsa = "ssh-rsa";
// Use Bouncy castle's pem reader to get the modulus and exponent as a byte array
PemReader reader = new PemReader(new StringReader(rsa.PublicKeyAsPEM));
RsaKeyParameters r = (RsaKeyParameters)reader.ReadObject();
byte[] sshrsa_bytes = Encoding.Default.GetBytes(sshrsa);
byte[] n = r.Modulus.ToByteArray();
byte[] e = r.Exponent.ToByteArray();
Buffer buf = new Buffer(sshrsa_bytes.Length + 4 + e.Length + 4 + n.Length + 4);
// Add the bytes
buf.add(sshrsa_bytes, e, n);
// Encode in Base64
string buffer64 = buf.AsBase64String();
// Set the base DTO
RsaKeyPair pair = new RsaKeyPair()
{
PublicSSHKey = string.Format("ssh-rsa {0} {1}", buffer64, comment),
PublicKeyAsPEM = rsa.PublicKeyAsPEM,
PrivateKeyAsPEM = rsa.PrivateKeyAsPEM,
// Later add parameters if required.
};
return pair;
}
private void importButton_Click(object sender, RoutedEventArgs e)
{
RsaKeyPair result = new RsaKeyPair()
{
PublicKey = publicTextBox.Text,
PrivateKey = privateTextBox.Text,
Timestamp = (int)(DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalSeconds
};
bool error = false;
if (Crypto.PublicKeyFromPem(result.PublicKey) == null)
{
Result = null;
error = true;
errorTextBlock.Visibility = Visibility.Visible;
}
if (!result.PublicOnly && Crypto.PrivateKeyFromPem(result.PrivateKey) == null)
{
Result = null;
error = true;
errorTextBlock.Visibility = Visibility.Visible;
}
if (!error)
{
Result = result;
this.Close();
}
}
public void CreateKeyPair()
{
var pair = new RsaKeyPair();
Assert.NotNull(pair.PublicKey);
Assert.NotNull(pair.PrivateKey);
}
private static RsaKeyPair GetRsaKeyPair(RSA rsa, string comment)
{
const string sshrsa = "ssh-rsa";
// Use Bouncy castle's pem reader to get the modulus and exponent as a byte array
PemReader reader = new PemReader(new StringReader(rsa.PublicKeyAsPEM));
RsaKeyParameters r = (RsaKeyParameters)reader.ReadObject();
byte[] sshrsa_bytes = Encoding.Default.GetBytes(sshrsa);
byte[] n = r.Modulus.ToByteArray();
byte[] e = r.Exponent.ToByteArray();
Buffer buf = new Buffer(sshrsa_bytes.Length + 4 + e.Length + 4 + n.Length + 4);
// Add the bytes
buf.add(sshrsa_bytes, e, n);
// Encode in Base64
string buffer64 = buf.AsBase64String();
// Set the base DTO
RsaKeyPair pair = new RsaKeyPair()
{
PublicSSHKey = string.Format("ssh-rsa {0} {1}", buffer64, comment),
PublicKeyAsPEM = rsa.PublicKeyAsPEM,
PrivateKeyAsPEM = rsa.PrivateKeyAsPEM,
// Later add parameters if required.
};
return(pair);
}
public static Certificate Deserialize(string data, RsaKeyPair key)
{
var result = new Certificate(key);
result.AddChain(new CertificateChain(data));
return(result);
}
/// <summary>
/// Create a new private/public key pair as PEM formatted strings.
/// </summary>
/// <returns>An <see cref="RsaKeyPair"/>.</returns>
public static RsaKeyPair GenerateRsaKeyPair()
{
var rsaGenerator = new RsaKeyPairGenerator();
rsaGenerator.Init(new KeyGenerationParameters(new SecureRandom(), 2048));
var keyPair = rsaGenerator.GenerateKeyPair();
var rsaKeyPair = new RsaKeyPair();
using (var privateKeyTextWriter = new StringWriter())
{
var pemWriter = new PemWriter(privateKeyTextWriter);
pemWriter.WriteObject(keyPair.Private);
pemWriter.Writer.Flush();
rsaKeyPair.PrivateKey = privateKeyTextWriter.ToString();
}
using (var publicKeyTextWriter = new StringWriter())
{
var pemWriter = new PemWriter(publicKeyTextWriter);
pemWriter.WriteObject(keyPair.Public);
pemWriter.Writer.Flush();
rsaKeyPair.PublicKey = publicKeyTextWriter.ToString();
}
return(rsaKeyPair);
}
public static Csr GenerateCsr(CsrDetails csrDetails, RsaKeyPair rsaKeyPair, string messageDigest = "SHA256")
{
var rsaKeys = CryptoKey.FromPrivateKey(rsaKeyPair.Pem, null);
// Translate from our external form to our OpenSSL internal form
// Ref: https://www.openssl.org/docs/manmaster/crypto/X509_NAME_new.html
var xn = new X509Name();
if (!string.IsNullOrEmpty(csrDetails.CommonName /**/)) xn.Common = csrDetails.CommonName; // CN;
if (!string.IsNullOrEmpty(csrDetails.Country /**/)) xn.Common = csrDetails.Country; // C;
if (!string.IsNullOrEmpty(csrDetails.StateOrProvince /**/)) xn.Common = csrDetails.StateOrProvince; // ST;
if (!string.IsNullOrEmpty(csrDetails.Locality /**/)) xn.Common = csrDetails.Locality; // L;
if (!string.IsNullOrEmpty(csrDetails.Organization /**/)) xn.Common = csrDetails.Organization; // O;
if (!string.IsNullOrEmpty(csrDetails.OrganizationUnit /**/)) xn.Common = csrDetails.OrganizationUnit; // OU;
if (!string.IsNullOrEmpty(csrDetails.Description /**/)) xn.Common = csrDetails.Description; // D;
if (!string.IsNullOrEmpty(csrDetails.Surname /**/)) xn.Common = csrDetails.Surname; // S;
if (!string.IsNullOrEmpty(csrDetails.GivenName /**/)) xn.Common = csrDetails.GivenName; // G;
if (!string.IsNullOrEmpty(csrDetails.Initials /**/)) xn.Common = csrDetails.Initials; // I;
if (!string.IsNullOrEmpty(csrDetails.Title /**/)) xn.Common = csrDetails.Title; // T;
if (!string.IsNullOrEmpty(csrDetails.SerialNumber /**/)) xn.Common = csrDetails.SerialNumber; // SN;
if (!string.IsNullOrEmpty(csrDetails.UniqueIdentifier /**/)) xn.Common = csrDetails.UniqueIdentifier; // UID;
var xr = new X509Request(0, xn, rsaKeys);
var md = MessageDigest.CreateByName(messageDigest); ;
xr.Sign(rsaKeys, md);
using (var bio = BIO.MemoryBuffer())
{
xr.Write(bio);
return new Csr(bio.ReadString());
}
}
/// <summary>
/// Creates a new wire message.
/// </summary>
/// <param name="messageType">Message type name</param>
/// <param name="serializedMessage">Serialized message</param>
/// <param name="serializer">Serializer used to serialize the signed content</param>
/// <param name="keyPair">RSA key pair to be used for creating a RSA signature for the message data</param>
/// <param name="sharedSecret">Shared secret (wire message will be not encrypted, if null)</param>
/// <param name="error">Species whether the wire message is in error state</param>
/// <param name="uniqueCallKey">Unique key to correlate RPC call</param>
/// <returns>The created wire message</returns>
/// <exception cref="ArgumentException">Thrown if the message type is left empty.</exception>
public WireMessage CreateWireMessage(
string messageType,
byte[] serializedMessage,
ISerializerAdapter serializer,
RsaKeyPair keyPair = null,
byte[] sharedSecret = null,
bool error = false,
byte[] uniqueCallKey = null)
{
if (string.IsNullOrWhiteSpace(messageType))
{
throw new ArgumentException("Message type must not be empty.", nameof(messageType));
}
byte[] iv =
sharedSecret == null
? new byte[0]
: AesEncryption.GenerateIv();
byte[] rawContent;
if (keyPair != null && sharedSecret != null)
{
var signedMessageData =
new SignedMessageData()
{
MessageRawData = serializedMessage,
Signature =
RsaSignature.CreateSignature(
keySize: keyPair.KeySize,
sendersPrivateKeyBlob: keyPair.PrivateKey,
rawData: serializedMessage)
};
rawContent = serializer.Serialize(typeof(SignedMessageData), signedMessageData);
}
else
{
rawContent = serializedMessage;
}
byte[] messageContent =
sharedSecret == null
? rawContent
: AesEncryption.Encrypt(
dataToEncrypt: rawContent,
sharedSecret: sharedSecret,
iv: iv);
return
(new WireMessage()
{
MessageType = messageType,
Data = messageContent,
Iv = iv,
Error = error,
UniqueCallKey = uniqueCallKey
});
}
private void ciphertextTextBox_TextChanged(object sender, TextChangedEventArgs e)
{
if (!editingPlaintext && !string.IsNullOrWhiteSpace(ciphertextTextBox.Text))
{
lastPlaintext = false;
editingCiphertext = true;
if (identityComboBox.SelectedIndex != -1)
{
RsaKeyPair selectedKey = KeyManager.Keys[identityComboBox.SelectedIndex];
if (!selectedKey.PublicOnly)
{
string cipher = ciphertextTextBox.Text.Split(new char[] { ']', '[' }, StringSplitOptions.RemoveEmptyEntries).Last();
cipher = cipher.Replace("\n", "");
string error = string.Empty;
byte[] cipherBytes = null;
try
{
cipherBytes = Convert.FromBase64String(cipher);
}
catch
{
error = "Invalid Base64";
}
string plain = "";
if (string.IsNullOrWhiteSpace(error))
{
try
{
plain = System.Text.Encoding.UTF8.GetString(Crypto.RsaDecrypt(selectedKey.PrivateCsp, cipherBytes));
}
catch
{
error = "Decryption Failure";
}
}
if (string.IsNullOrWhiteSpace(error))
{
plaintextTextBox.Text = plain;
arrowRight.Visibility = Visibility.Collapsed;
arrowLeft.Visibility = Visibility.Visible;
errorTextBlock.Visibility = Visibility.Collapsed;
}
else
{
errorTextBlock.Visibility = Visibility.Visible;
errorTextBlock.Text = error;
}
}
}
}
editingCiphertext = false;
}
// Static Methods
public static Account Create(List <string> contactEmails)
{
var key = RsaKeyPair.New();
return(new Account(key)
{
Contact = contactEmails
});
}
// Sign up user with passed credentials. RSA key pair will be generated automatically.
public static bool SignUp(string name, string login, string password)
{
// Generate new key pair.
var keyPair = RsaKeyPair.GenerateKeyPair();
// Persist private key. Not the best place to do it, but it doesn't matter.
CredentialsManager.Store(login, keyPair.PrivateKeyXml);
// Client method call.
return(AppUser.GetInstance().Client.SignUp(login, name, password, keyPair.PublicKeyXml));
}
/// <summary>
/// Writes the public key from the private key specified.
/// </summary>
/// <param name="privateKeyFile"></param>
public static void WriteRsaKeyPair(string privateKeyFile, string comment)
{
RsaKeyPair pair = GenerateRsaKeyPair(privateKeyFile, comment);
// We only need to write the public key since we already got the private one.
TextWriter tw = new StreamWriter(privateKeyFile + ".pub", false);
tw.WriteLine(pair.PublicSSHKey);
tw.Close();
}
public static void RsaManagerTests()
{
string data = "HelloWorld!!!";
Console.WriteLine("█ BER");
RsaKeyPair keyPair = RsaManager.CreateKeyPair(4096, RsaKeyEncoding.Ber);
Console.WriteLine("Public:\n" + keyPair.PublicKey);
Console.WriteLine("Private:\n" + keyPair.PrivateKey);
string encrypted = RsaManager.EncryptToBase64(data, keyPair.PublicKey);
Console.WriteLine("Encrypted: " + encrypted);
Console.WriteLine("Decrypted: " + RsaManager.DecryptFromBase64(encrypted, keyPair.PrivateKey));
Console.WriteLine("█ XML");
keyPair = RsaManager.CreateKeyPair(4096, RsaKeyEncoding.Xml, false);
Console.WriteLine("Public:\n" + keyPair.PublicKey);
Console.WriteLine("Private:\n" + keyPair.PrivateKey);
encrypted = RsaManager.EncryptToBase64(data, keyPair.PublicKey);
Console.WriteLine("Encrypted: " + encrypted);
Console.WriteLine("Decrypted: " + RsaManager.DecryptFromBase64(encrypted, keyPair.PrivateKey));
Console.WriteLine("█ XML INDENTED");
keyPair = RsaManager.CreateKeyPair(4096, RsaKeyEncoding.Xml);
Console.WriteLine("Public:\n" + keyPair.PublicKey);
Console.WriteLine("Private:\n" + keyPair.PrivateKey);
encrypted = RsaManager.EncryptToBase64(data, keyPair.PublicKey);
Console.WriteLine("Encrypted: " + encrypted);
Console.WriteLine("Decrypted: " + RsaManager.DecryptFromBase64(encrypted, keyPair.PrivateKey));
Console.WriteLine("█ JSON");
keyPair = RsaManager.CreateKeyPair(4096, RsaKeyEncoding.Json, false);
Console.WriteLine("Public:\n" + keyPair.PublicKey);
Console.WriteLine("Private:\n" + keyPair.PrivateKey);
encrypted = RsaManager.EncryptToBase64(data, keyPair.PublicKey);
Console.WriteLine("Encrypted: " + encrypted);
Console.WriteLine("Decrypted: " + RsaManager.DecryptFromBase64(encrypted, keyPair.PrivateKey));
Console.WriteLine("█ JSON INDENTED");
keyPair = RsaManager.CreateKeyPair(512, RsaKeyEncoding.Json);
Console.WriteLine("Public:\n" + keyPair.PublicKey);
Console.WriteLine("Private:\n" + keyPair.PrivateKey);
encrypted = RsaManager.EncryptToBase64(data, keyPair.PublicKey);
Console.WriteLine("Encrypted: " + encrypted);
Console.WriteLine("Decrypted: " + RsaManager.DecryptFromBase64(encrypted, keyPair.PrivateKey));
Console.WriteLine("█ PEM");
keyPair = RsaManager.CreateKeyPair(4096, RsaKeyEncoding.Pem);
Console.WriteLine("Public:\n" + keyPair.PublicKey);
Console.WriteLine("Private:\n" + keyPair.PrivateKey);
encrypted = RsaManager.EncryptToBase64(data, keyPair.PublicKey);
Console.WriteLine("Encrypted: " + encrypted);
Console.WriteLine("Decrypted: " + RsaManager.DecryptFromBase64(encrypted, keyPair.PrivateKey));
}
private const string XmlPublicAndPrivateKeyPattern = "(\\s*<\\s*RSAKeyValue\\s*>\\s*(?:\\s*<\\s*Modulus\\s*>\\s*[a-zA-Z0-9\\+\\/]+={0,2}\\s*<\\/\\s*Modulus\\s*>()|\\s*<\\s*Exponent\\s*>\\s*[a-zA-Z0-9\\+\\/]+={0,2}\\s*<\\/\\s*Exponent\\s*>()|\\s*<\\s*P\\s*>\\s*[a-zA-Z0-9\\+\\/]+={0,2}\\s*<\\/\\s*P\\s*>()|\\s*<\\s*Q\\s*>\\s*[a-zA-Z0-9\\+\\/]+={0,2}\\s*<\\/\\s*Q\\s*>()|\\s*<\\s*DP\\s*>\\s*[a-zA-Z0-9\\+\\/]+={0,2}\\s*<\\/\\s*DP\\s*>()|\\s*<\\s*DQ\\s*>\\s*[a-zA-Z0-9\\+\\/]+={0,2}\\s*<\\/\\s*DQ\\s*>()|\\s*<\\s*InverseQ\\s*>\\s*[a-zA-Z0-9\\+\\/]+={0,2}\\s*<\\/\\s*InverseQ\\s*>()|\\s*<\\s*D\\s*>\\s*[a-zA-Z0-9\\+\\/]+={0,2}\\s*<\\/\\s*D\\s*>()){8}\\s*<\\/\\s*RSAKeyValue\\s*>\\s*\\2\\3\\4\\5\\6\\7\\8\\9)|(\\s*<\\s*RSAKeyValue\\s*>\\s*(?:\\s*<\\s*Modulus\\s*>\\s*[a-zA-Z0-9\\+\\/]+={0,2}\\s*<\\/\\s*Modulus\\s*>()|\\s*<\\s*Exponent\\s*>\\s*[a-zA-Z0-9\\+\\/]+={0,2}\\s*<\\/\\s*Exponent\\s*>()){2}\\s*<\\/\\s*RSAKeyValue\\s*>\\s*\\11\\12)"; //https://regex101.com/r/fQV2VN/4 (\s*<\s*RSAKeyValue\s*>\s*(?:\s*<\s*Modulus\s*>\s*[a-zA-Z0-9\+\/]+={0,2}\s*<\/\s*Modulus\s*>()|\s*<\s*Exponent\s*>\s*[a-zA-Z0-9\+\/]+={0,2}\s*<\/\s*Exponent\s*>()|\s*<\s*P\s*>\s*[a-zA-Z0-9\+\/]+={0,2}\s*<\/\s*P\s*>()|\s*<\s*Q\s*>\s*[a-zA-Z0-9\+\/]+={0,2}\s*<\/\s*Q\s*>()|\s*<\s*DP\s*>\s*[a-zA-Z0-9\+\/]+={0,2}\s*<\/\s*DP\s*>()|\s*<\s*DQ\s*>\s*[a-zA-Z0-9\+\/]+={0,2}\s*<\/\s*DQ\s*>()|\s*<\s*InverseQ\s*>\s*[a-zA-Z0-9\+\/]+={0,2}\s*<\/\s*InverseQ\s*>()|\s*<\s*D\s*>\s*[a-zA-Z0-9\+\/]+={0,2}\s*<\/\s*D\s*>()){8}\s*<\/\s*RSAKeyValue\s*>\s*\2\3\4\5\6\7\8\9)|(\s*<\s*RSAKeyValue\s*>\s*(?:\s*<\s*Modulus\s*>\s*[a-zA-Z0-9\+\/]+={0,2}\s*<\/\s*Modulus\s*>()|\s*<\s*Exponent\s*>\s*[a-zA-Z0-9\+\/]+={0,2}\s*<\/\s*Exponent\s*>()){2}\s*<\/\s*RSAKeyValue\s*>\s*\11\12)
public static RsaKeyPair CreateRsaKeyPair(this uint keySize, RsaKeyEncoding encoding = RsaKeyEncoding.Ber, bool indent = true)
{
RsaKeyPair result;
using (RSACryptoServiceProvider Csp = new RSACryptoServiceProvider((int)keySize))
{
switch (encoding)
{
case RsaKeyEncoding.Xml:
result = new RsaKeyPair(
publicKey: XDocument.Parse(Csp.ToXmlString(false)).ToString(indent ? SaveOptions.None : SaveOptions.DisableFormatting),
privateKey: XDocument.Parse(Csp.ToXmlString(true)).ToString(indent ? SaveOptions.None : SaveOptions.DisableFormatting)
);
break;
case RsaKeyEncoding.Json:
RSAParameters parameters = Csp.ExportParameters(true);
var pubKey = new
{
Modulus = (parameters.Modulus !).ToBase64(),
Exponent = (parameters.Exponent !).ToBase64(),
};
var privKey = new
{
Modulus = (parameters.Modulus !).ToBase64(),
Exponent = (parameters.Exponent !).ToBase64(),
P = (parameters.P !).ToBase64(),
Q = (parameters.Q !).ToBase64(),
DP = (parameters.DP !).ToBase64(),
DQ = (parameters.DQ !).ToBase64(),
InverseQ = (parameters.InverseQ !).ToBase64(),
D = (parameters.D !).ToBase64()
};
var options = new JsonSerializerOptions
{
WriteIndented = indent
};
result = new RsaKeyPair(JsonSerializer.Serialize(pubKey, options), JsonSerializer.Serialize(privKey, options));
break;
case RsaKeyEncoding.Pem:
result = new RsaKeyPair($"{RsaPemPublicKeyInitialString}{Environment.NewLine}{Csp.ExportSubjectPublicKeyInfo().ToBase64(HashExtensions.PemLineBreaksLength)}{Environment.NewLine}{RsaPemPublicKeyFinalString}",
$"{RsaPemPrivateKeyInitialString}{Environment.NewLine}{Csp.ExportPkcs8PrivateKey().ToBase64(HashExtensions.PemLineBreaksLength)}{Environment.NewLine}{RsaPemPrivateKeyFinalString}");
break;
default:
result = new RsaKeyPair(publicKey: Csp.ExportSubjectPublicKeyInfo().ToBase64(), privateKey: Csp.ExportPkcs8PrivateKey().ToBase64());
break;
}
ValidateRsaPublicKey(result.PublicKey);
ValidateRsaPrivateKey(result.PrivateKey);
return(result);
}
}
// Ctor
public Certificate(RsaKeyPair key = null)
{
// Generate new RSA key for certificate
if (key == null)
{
Key = RsaKeyPair.New();
}
else
{
Key = key;
}
}
public static async Task <Account> LoadAsync(string contactEmail)
{
var location = await _localStorage.LoadAccount(contactEmail);
var privateKeyPem = await _localStorage.LoadPrivateKey(contactEmail);
//var publicKeyPem = await _localStorage.LoadPublicKey(contactEmail);
var key = new RsaKeyPair(privateKeyPem);
return(new Account(key, location));
}
/// <summary>
/// Writes a pair of files representing the Public Key in ssh-required format
/// and the Private key in PEM format.
/// </summary>
/// <param name="bits"></param>
/// <param name="comment"></param>
/// <param name="privFileName"></param>
public static void WriteRsaKeyPair(int bits, string comment, string privFileName)
{
RsaKeyPair pair = GenerateRsaKeyPair(bits, comment);
TextWriter tw;
tw = new StreamWriter(privFileName, false);
tw.WriteLine(pair.PrivateKeyAsPEM);
tw.Close();
tw = new StreamWriter(privFileName + ".pub", false);
tw.WriteLine(pair.PublicSSHKey);
tw.Close();
}
public void TestRsaEncryptAndDecrypt()
{
string _data = "I am union guy."
, _dataEncrypted = ""
, _dataDecrypted = "";
RsaKeyPair _rsaKeyPair = new RsaKeyPair();
RsaKeyFormat _rsaKeyFormat = RsaKeyFormat.PEM;
_dataEncrypted = RsaHelper.Encrypt(_rsaKeyFormat, _rsaKeyPair.PublicKey_PEM, _data);
_dataDecrypted = RsaHelper.Decrypt(_rsaKeyFormat, _rsaKeyPair.PrivateKey_PEM, _dataEncrypted);
Assert.AreEqual(_data, _dataDecrypted, string.Format("Data = {0}, DataEncrypted = {1}, DataDecrypted = {2}", _data, _dataEncrypted, _dataDecrypted));
}
public static void SaveKey(RsaKeyPair Key)
{
string json = Key.ToJson();
byte[] bytes = Crypto.RsaEncrypt(masterKey.PublicCsp, System.Text.Encoding.UTF8.GetBytes(json));
string filename = $"{path}\\{Key.Hash.Replace("+", "").Replace("=", "").Replace("/", "").Substring(0, 16)}.key";
if (System.IO.File.Exists(filename))
{
System.IO.File.Delete(filename);
}
System.IO.File.WriteAllBytes(filename, bytes);
}
public void EncryptAndDecrypt()
{
var pair = new RsaKeyPair();
var str = "Hello";
var encoded = RsaCipher.Encrypt(str, pair.PublicKey);
Assert.NotEqual(str, encoded);
var decoded = RsaCipher.Decrypt(encoded, pair.PrivateKey);
Assert.Equal(str, decoded);
}
public void SaveAndLoad()
{
var pair = new RsaKeyPair();
pair.SaveToFile(PairFile);
var pair2 = new RsaKeyPair();
pair2.LoadFromFile(PairFile);
Assert.Equal(pair.PublicKey.Parameters.Exponent, pair2.PublicKey.Parameters.Exponent);
Assert.Equal(pair.PublicKey.Parameters.Modulus, pair2.PublicKey.Parameters.Modulus);
Assert.Equal(pair2.PublicKey.Parameters.D, null);
}
/// <summary>
/// Creates a new instance of the RemotingClient class.
/// </summary>
/// <param name="config">Configuration settings</param>
public RemotingClient(ClientConfig config) : this()
{
if (config == null)
{
throw new ArgumentException("No config provided and no default configuration found.");
}
Serializer = config.Serializer ?? new BsonSerializerAdapter();
MessageEncryption = config.MessageEncryption;
_config = config;
if (MessageEncryption)
{
_keyPair = new RsaKeyPair(config.KeySize);
}
_channel = config.Channel ?? new WebsocketClientChannel();
_channel.Init(this);
_rawMessageTransport = _channel.RawMessageTransport;
_rawMessageTransport.ReceiveMessage += OnMessage;
_rawMessageTransport.ErrorOccured += (s, exception) =>
{
if (exception != null)
{
throw exception;
}
throw new NetworkException(s);
};
_clientInstances.AddOrUpdate(
key: config.UniqueClientInstanceName,
addValueFactory: uniqueInstanceName => this,
updateValueFactory: (uniqueInstanceName, oldClient) =>
{
oldClient?.Dispose();
return(this);
});
if (!config.IsDefault)
{
return;
}
RemotingClient.DefaultRemotingClient ??= this;
}
private void exportButton_Click(object sender, RoutedEventArgs e)
{
RsaKeyPair key = ((Button)e.OriginalSource).DataContext as RsaKeyPair;
Microsoft.Win32.SaveFileDialog dlg = new Microsoft.Win32.SaveFileDialog();
dlg.FileName = MakeValidFileName((string.IsNullOrWhiteSpace(key.Note) ? "" : key.Note + ".") + (key.PublicOnly ? "Public." : "") + key.Hash.Substring(0, 16));//key.Hash.Substring(0,16);
dlg.Filter = "JSON (.json)|*.json|plain text (*.txt)|*.txt|All files (*.*)|*.*";
dlg.FilterIndex = 1;
dlg.RestoreDirectory = true;
dlg.Title = "Export Key";
if (dlg.ShowDialog() == true)
{
try
{
if (System.IO.File.Exists(dlg.FileName))
{
System.IO.File.Delete(dlg.FileName);
}
if (dlg.FileName.EndsWith(".JSON", StringComparison.InvariantCultureIgnoreCase))
{
System.IO.File.WriteAllText(dlg.FileName, key.ToJson());
}
else
{
string text = key.PublicKey;
if (!key.PublicOnly)
{
text += "\n" + key.PrivateKey;
}
text += "\n";
System.IO.File.WriteAllText(dlg.FileName, text);
}
MessageBox.Show("File saved", "Success", MessageBoxButton.OK, MessageBoxImage.Asterisk);
}
catch (Exception ex)
{
MessageBox.Show($"Encountered an error while trying to write to\n{dlg.FileName}", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
}
private void plaintextTextBox_TextChanged(object sender, TextChangedEventArgs e)
{
if (!editingCiphertext && !string.IsNullOrWhiteSpace(plaintextTextBox.Text))
{
lastPlaintext = true;
editingPlaintext = true;
if (identityComboBox.SelectedIndex != -1)
{
RsaKeyPair selectedKey = KeyManager.Keys[identityComboBox.SelectedIndex];
byte[] buffer = Crypto.RsaEncrypt(selectedKey.PublicCsp, System.Text.Encoding.UTF8.GetBytes(plaintextTextBox.Text));
string cipher = $"[{selectedKey.Hash.Substring(0, 16)}]\n{Convert.ToBase64String(buffer)}";
ciphertextTextBox.Text = cipher;
arrowRight.Visibility = Visibility.Visible;
arrowLeft.Visibility = Visibility.Collapsed;
}
}
editingPlaintext = false;
}
public void VerifySignature_should_return_true_if_signature_is_valid()
{
int keySize = 4096;
var keyPair = new RsaKeyPair(keySize);
var data = Encoding.UTF8.GetBytes("Test");
var signature =
RsaSignature.CreateSignature(
keySize: keySize,
sendersPrivateKeyBlob: keyPair.PrivateKey,
rawData: data);
var result =
RsaSignature.VerifySignature(
keySize: keySize,
sendersPublicKeyBlob: keyPair.PublicKey,
rawData: data,
signature: signature);
Assert.Equal(512, signature.Length);
Assert.True(result);
}
public static void Initialize(string Password)
{
if (Initialized)
{
return;
}
path = System.Environment.GetFolderPath(System.Environment.SpecialFolder.ApplicationData) + @"\OradeTech\CryptoTool\Keys";
if (!System.IO.Directory.Exists(path))
{
System.IO.Directory.CreateDirectory(path);
}
salt = System.Text.Encoding.UTF8.GetBytes(Password);
masterKey = Crypto.RsaKeysFromPassword(Password, salt);
var files = System.IO.Directory.GetFiles(path);
foreach (string keyFile in files)
{
try
{
byte[] buffer = System.IO.File.ReadAllBytes(keyFile);
byte[] decrypted = Crypto.RsaDecrypt(masterKey.PrivateCsp, buffer);
string json = System.Text.Encoding.UTF8.GetString(decrypted);
RsaKeyPair key = RsaKeyPair.FromJson(json);
Keys.Add(key);
}
catch
{
Console.WriteLine("Failed to load key");
}
}
Initialized = true;
}
public Account(RsaKeyPair key)
: this()
{
Key = key;
Signer = new JwsSigner(Key);
}
private void privateTextBox_TextChanged(object sender, TextChangedEventArgs e)
{
Result = null;
errorTextBlock.Visibility = Visibility.Hidden;
}
// Ctor
public JwsSigner(RsaKeyPair key)
{
_key = key;
}
public Account(RsaKeyPair key, string location)
: this(key)
{
Location = new Uri(location);
}
public static Csr GenerateCsr(CsrDetails csrDetails, RsaKeyPair rsaKeyPair, string messageDigest = "SHA256")
{
var rsaKeys = CryptoKey.FromPrivateKey(rsaKeyPair.Pem, null);
// Translate from our external form to our OpenSSL internal form
// Ref: https://www.openssl.org/docs/manmaster/crypto/X509_NAME_new.html
var xn = new X509Name();
if (!string.IsNullOrEmpty(csrDetails.CommonName /**/))
{
xn.Common = csrDetails.CommonName; // CN;
}
if (!string.IsNullOrEmpty(csrDetails.Country /**/))
{
xn.Common = csrDetails.Country; // C;
}
if (!string.IsNullOrEmpty(csrDetails.StateOrProvince /**/))
{
xn.Common = csrDetails.StateOrProvince; // ST;
}
if (!string.IsNullOrEmpty(csrDetails.Locality /**/))
{
xn.Common = csrDetails.Locality; // L;
}
if (!string.IsNullOrEmpty(csrDetails.Organization /**/))
{
xn.Common = csrDetails.Organization; // O;
}
if (!string.IsNullOrEmpty(csrDetails.OrganizationUnit /**/))
{
xn.Common = csrDetails.OrganizationUnit; // OU;
}
if (!string.IsNullOrEmpty(csrDetails.Description /**/))
{
xn.Common = csrDetails.Description; // D;
}
if (!string.IsNullOrEmpty(csrDetails.Surname /**/))
{
xn.Common = csrDetails.Surname; // S;
}
if (!string.IsNullOrEmpty(csrDetails.GivenName /**/))
{
xn.Common = csrDetails.GivenName; // G;
}
if (!string.IsNullOrEmpty(csrDetails.Initials /**/))
{
xn.Common = csrDetails.Initials; // I;
}
if (!string.IsNullOrEmpty(csrDetails.Title /**/))
{
xn.Common = csrDetails.Title; // T;
}
if (!string.IsNullOrEmpty(csrDetails.SerialNumber /**/))
{
xn.Common = csrDetails.SerialNumber; // SN;
}
if (!string.IsNullOrEmpty(csrDetails.UniqueIdentifier /**/))
{
xn.Common = csrDetails.UniqueIdentifier; // UID;
}
var xr = new X509Request(0, xn, rsaKeys);
var md = MessageDigest.CreateByName(messageDigest);;
xr.Sign(rsaKeys, md);
using (var bio = BIO.MemoryBuffer())
{
xr.Write(bio);
return(new Csr(bio.ReadString()));
}
}
private void cancelButton_Click(object sender, RoutedEventArgs e)
{
Result = null;
this.Close();
}
