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using System;
using System.Security.Cryptography;
using System.Text;
namespace Dough.Utilities
{
public static class Random
{
private const string RandomStringCharacters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
private static readonly char[] RandomPasswordCharacters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890".ToCharArray();
public static string String(int length)
{
var stringChars = new char[length];
var random = new System.Random();
for (var i = 0; i < stringChars.Length; i++)
stringChars[i] = RandomStringCharacters[random.Next(RandomStringCharacters.Length)];
return new string(stringChars);
}
public static string Password(int length)
{
var data = new byte[4*length];
using (var crypto = new RNGCryptoServiceProvider())
{
crypto.GetBytes(data);
}
var result = new StringBuilder(length);
for (var i = 0; i < length; i++)
{
var rnd = BitConverter.ToUInt32(data, i * 4);
var idx = rnd % RandomPasswordCharacters.Length;
result.Append(RandomPasswordCharacters[idx]);
}
return result.ToString();
}
public static int Number(int length)
{
var random = new System.Random();
return random.Next(0, length);
}
public static string NumericalString(int length)
{
var stringChars = new char[length];
var random = new System.Random();
for (var i = 0; i < stringChars.Length; i++)
stringChars[i] = RandomStringCharacters[random.Next(RandomStringCharacters.Length)];
return new string(stringChars);
}
}
}
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