/// <summary>
/// Generates a random string.
/// </summary>
/// <param name="length"></param>
/// <param name="generatorOptions"></param>
/// <returns></returns>
public static string GenerateRandomString(int length, StringGeneratorOptions generatorOptions)
{
if (Convert.ToInt32(generatorOptions) == 0)
throw new Exception("At least one generator option must be specified");
var charString = "";
if (generatorOptions.HasFlag(StringGeneratorOptions.UpperCase))
charString += CharsetUpperCase;
if (generatorOptions.HasFlag(StringGeneratorOptions.LowerCase))
charString += CharsetLowerCase;
if (generatorOptions.HasFlag(StringGeneratorOptions.Digits))
charString += CharsetDigits;
if (generatorOptions.HasFlag(StringGeneratorOptions.Special))
charString += CharsetSpecial;
var chars = charString.ToCharArray();
var data = new byte[1];
var result = new StringBuilder(length);
SecureRandomBc.NextBytes(data);
data = new byte[length];
SecureRandomBc.NextBytes(data);
foreach (var dataByte in data)
{
result.Append(chars[dataByte % chars.Length]);
}
return result.ToString();
}
/// <summary>
/// Generates a random string.
/// </summary>
/// <param name="length"></param>
/// <param name="generatorOptions"></param>
/// <returns></returns>
public static string GenerateRandomString(int length, StringGeneratorOptions generatorOptions)
{
if (Convert.ToInt32(generatorOptions) == 0)
{
throw new Exception("At least one generator option must be specified");
}
var charString = "";
if (generatorOptions.HasFlag(StringGeneratorOptions.UpperCase))
{
charString += CharsetUpperCase;
}
if (generatorOptions.HasFlag(StringGeneratorOptions.LowerCase))
{
charString += CharsetLowerCase;
}
if (generatorOptions.HasFlag(StringGeneratorOptions.Digits))
{
charString += CharsetDigits;
}
if (generatorOptions.HasFlag(StringGeneratorOptions.Special))
{
charString += CharsetSpecial;
}
var chars = charString.ToCharArray();
var data = new byte[1];
var result = new StringBuilder(length);
SecureRandomBc.NextBytes(data);
data = new byte[length];
SecureRandomBc.NextBytes(data);
foreach (var dataByte in data)
{
result.Append(chars[dataByte % chars.Length]);
}
return(result.ToString());
}