private static Route GenerateRoute(IList <NodeInfo> possibleNodes, int startSequenceId = 0, Route oldRoute = null)
{
var nodes = new RouteNode[3];
var i = 0;
while (i < nodes.Length)
{
var nodeIndex = SodiumCore.GetRandomNumber(possibleNodes.Count);
var node = possibleNodes[nodeIndex];
if (nodes.Any(n => n != null && n.Node.Id == node.Id))
{
continue;
}
var keyPair = PublicKeyBox.GenerateKeyPair();
nodes[i++] = new RouteNode
{
EphemeralPublicKey = keyPair.PublicKey,
SymmetricKey = GenerateSymmetricKey(node.PublicKey, null, keyPair.PublicKey, keyPair.PrivateKey),
Node = node
};
}
return(new Route
{
StartSequenceId = startSequenceId,
OldRoute = oldRoute,
Nodes = nodes
});
}
private void GeneratePasswordButton_Click(object sender, RoutedEventArgs e)
{
string characters = "";
string password = "";
if (settings.GetUseLowercase() == true)
{
characters += "abcdefghijklmnopqrstuvwxyz";
}
if (settings.GetUseUppercase() == true)
{
characters += "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
}
if (settings.GetUseNumbers() == true)
{
characters += "0123456789";
}
if (settings.GetUseSpecialchars() == true)
{
characters += settings.GetAllowedSpecialchars();
}
for (int i = 0; i < settings.GetDefaultPasswordlength(); i++)
{
int random = SodiumCore.GetRandomNumber(characters.Length);
char c = characters[random];
password += c;
}
GeneratedPasswordTextbox.Text = password;
}
public static string[] AESEncryption(string key, string plainText)
{
var nonce = SecretAead.GenerateNonce();
var encodedKey = Encoding.UTF8.GetBytes(key);
var encodedData = SodiumCore.GetRandomBytes(SodiumCore.GetRandomNumber(1147483647));
var cipherText = SecretAead.Encrypt(Encoding.UTF8.GetBytes(plainText), nonce, encodedKey, encodedData);
return(new[] { Encoding.UTF8.GetString(cipherText), Encoding.UTF8.GetString(nonce), Encoding.UTF8.GetString(encodedData) });
}
private static List <string> GetRandomWords(string[] wordlist, int length)
{
var words = new List <string>();
var textInfo = CultureInfo.CurrentCulture.TextInfo;
for (int i = 0; i < length; i++)
{
int randomLine = SodiumCore.GetRandomNumber(wordlist.Length);
words.Add(textInfo.ToTitleCase(wordlist[randomLine]));
}
return(words);
}
private static List <string> GetRandomWords(string[] wordlist, int length)
{
var words = new List <string>();
var textInfo = new CultureInfo("en-US", useUserOverride: false).TextInfo;
for (int i = 0; i < length; i++)
{
int randomLine = SodiumCore.GetRandomNumber(wordlist.Length);
words.Add(textInfo.ToTitleCase(wordlist[randomLine]));
}
return(words);
}
public void GetRandomNumbersTest()
{
var n1 = SodiumCore.GetRandomNumber(1600);
var n2 = SodiumCore.GetRandomNumber(25550);
var n3 = SodiumCore.GetRandomNumber(5);
var n4 = SodiumCore.GetRandomNumber(2147483647);
var n5 = SodiumCore.GetRandomNumber(0); //always 0
Assert.IsNotNull(n1);
Assert.IsNotNull(n2);
Assert.IsNotNull(n3);
Assert.IsNotNull(n4);
Assert.IsNotNull(n5);
Assert.Less(n1, 1600);
Assert.Less(n2, 25550);
Assert.Less(n3, 5);
Assert.Less(n4, 2147483647);
Assert.AreEqual(n5, 0);
}
public static string GetRandomString(int length, StringFormat[] lst)
{
StringBuilder sb = new StringBuilder();
string keyspace = "";
if (lst.Any(x => x == StringFormat.Number))
{
keyspace = "0123456789";
}
if (lst.Any(x => x == StringFormat.Letter))
{
keyspace += "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
}
else
{
if (lst.Any(x => x == StringFormat.Upper))
{
keyspace += "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
}
if (lst.Any(x => x == StringFormat.Lower))
{
keyspace += "abcdefghijklmnopqrstuvwxyz";
}
}
if (lst.Any(x => x == StringFormat.Symbol))
{
keyspace += "~!@#$%^&*()_+`-={}|[]\\:\";'<>?,./";
}
for (int i = 0; i < length; i++)
{
sb.Append(keyspace[SodiumCore.GetRandomNumber(keyspace.Length)]);
}
return(sb.ToString());
}
/// <summary>
/// Random number.
/// </summary>
/// <returns>The numbers.</returns>
/// <param name="n">N.</param>
public static int RandomNumbers(int n)
{
Guard.Argument(n, nameof(n)).NotNegative();
return(SodiumCore.GetRandomNumber(n));
}
public DiffieHellman()
{
secretKey = SodiumCore.GetRandomBytes(SodiumCore.GetRandomNumber(1147483647));
}
public static string randomString()
{
var randomBytes = SodiumCore.GetRandomBytes(SodiumCore.GetRandomNumber(1147483647));
return(Encoding.UTF8.GetString(randomBytes));
}
/// <summary>
/// Random number.
/// </summary>
/// <returns>The numbers.</returns>
/// <param name="n">N.</param>
public static int RandomNumbers(int n)
{
return(SodiumCore.GetRandomNumber(n));
}
public static int RandomNumber(int n) => SodiumCore.GetRandomNumber(n);
