/// <summary>
/// Generates a password of length <paramref name="passwordLength"/> from the given pool of
/// symbols in <paramref name="parameters"/>
/// </summary>
/// <param name="passwordLength">Length of the password.</param>
/// <param name="parameters">The parameters.</param>
/// <returns></returns>
public static string GeneratePassword(int passwordLength, PasswordGeneratorParameters parameters)
{
#region generate pool of symbols
List<char> pool = GenerateSymbolPool(parameters);
#endregion generate pool of symbols
#region generate password
char[] password = new char[passwordLength];
Random rand = new Random();
int poolSize = pool.Count - 1;
for (int i = 0; i < passwordLength; i++)
{
password[i] = pool[rand.Next(0, poolSize)];
}
#endregion generate password
return new string(password);
}
/// <summary>
/// Generates a pool of symbols
/// </summary>
/// <param name="parameters">The parameters.</param>
/// <returns></returns>
private static List<char> GenerateSymbolPool(PasswordGeneratorParameters parameters)
{
List<char> pool = new List<char>();
// copy the alpha chars into the source pool
if (parameters.HasFlag(PasswordGeneratorParameters.AlphaLowercase))
{
pool.AddRange(alpha);
}
// add the alpha capital to the source pool
if (parameters.HasFlag(PasswordGeneratorParameters.AlphaCapital))
{
pool.AddRange(alphaCaps);
}
// add the numeric values to the source pool
if (parameters.HasFlag(PasswordGeneratorParameters.Numeric))
{
pool.AddRange(numeric);
}
// add the symbols to the source pool
if (parameters.HasFlag(PasswordGeneratorParameters.Symbols))
{
pool.AddRange(symbols);
}
return pool;
}