/// <summary>
/// Generate a random token or verification code.
/// </summary>
/// <param name="length">The exact length of the token.</param>
/// <returns>The radom token generated.</returns>
protected string GenerateToken(int length = 30)
{
// Create a new token.
Nequeo.Invention.TokenGenerator token = new Invention.TokenGenerator();
return(token.Random(length));
}
/// <summary>
/// Generate the password.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnPasswordGeneratorGen_Click(object sender, EventArgs e)
{
// Get the minumum and maximum values.
int min = Int32.Parse(txtPasswordGeneratorMin.Text);
int max = Int32.Parse(txtPasswordGeneratorMax.Text);
// If the minumum is greater than the maximum
if (min > max)
{
MessageBox.Show(this, "The minimum length must not be greater than the maximum length.", "Invalid Length",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
Invention.IRandomGenerator gen = null;
string genValue = string.Empty;
// Select the generation type.
switch (_selection)
{
case 1:
gen = new Invention.PasswordStandardGenerator();
break;
case 2:
gen = new Invention.LowerUpperCaseGenerator();
break;
case 3:
gen = new Invention.NumberLowerCaseGenerator();
break;
case 4:
gen = new Invention.NumberUpperCaseGenerator();
break;
case 5:
gen = new Invention.LowerCaseGenerator();
break;
case 6:
gen = new Invention.UpperCaseGenerator();
break;
case 7:
gen = new Invention.NumberGenerator();
break;
case 8:
gen = new Invention.TokenGenerator();
break;
case 9:
break;
case 0:
default:
gen = new Invention.PasswordGenerator();
break;
}
// Select the generation type.
switch (_selection)
{
case 9:
genValue = Guid.NewGuid().ToString();
break;
default:
genValue = gen.Random(min, max);
break;
}
// Generate the password.
txtPasswordGeneratorGen.Text = genValue;
// Get the password length score.
int passwordLengthScore = 0;
passwordStrengthLevel.Text = Invention.Validation.
PasswordStrength(genValue, out passwordLengthScore).ToString().Replace('_', ' ') + ", " +
"Score = " + passwordLengthScore.ToString() + ", Exellent > 100";
// Calculate the entropy value.
double bitRate = 0.0;
double metricRate = 0.0;
double entropy = Invention.Validation.EntropyShannon(genValue, out bitRate, out metricRate);
lblEntropyValue.Text = entropy.ToString() + ", Bit Rate = " + bitRate.ToString() + ", Metric Rate = " + metricRate.ToString();
// calculate the years taken to crak the password.
double combinations = 1;
double crackYears = Invention.Validation.PasswordCrackTime(genValue, out combinations);
string newNumber = "";
int exponNotation = 0;
string metricPrefixName = "";
string metricPrefixSymbol = "";
string name = Invention.Converter.GetNumberShortScaleName(crackYears, out newNumber, out exponNotation, out metricPrefixName, out metricPrefixSymbol);
lblPasswordCrackTimeValue.Text = newNumber.Split('.')[0] + " " + metricPrefixSymbol + " (" + name + ") Years" + " (" + crackYears + " Years)";
txtPasswordCombinations.Text = combinations.ToString();
}
}
/// <summary>
/// Genrate a new nonce.
/// </summary>
/// <param name="size">The size of the nonce.</param>
/// <returns>The nonce data.</returns>
public string GenerateNonce(int size = 30)
{
Nequeo.Invention.TokenGenerator token = new Invention.TokenGenerator();
return(token.Random(size));
}
