LookingGlass/Util/RandomStringGenerator.cs

using System.Security.Cryptography;
using System.Text;

namespace LookingGlass.Util;

public class RandomStringGenerator
{
    private static readonly char[] chars =
        "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*+?".ToCharArray();

    public static string GenerateRandomString(int length)
    {
        var stringBuilder = new StringBuilder();
        using (var rng = RandomNumberGenerator.Create())
        {
            byte[] buffer = new byte[1];
            for (int i = 0; i < length; i++)
            {
                rng.GetBytes(buffer);
                var randomIndex = buffer[0] % chars.Length;
                stringBuilder.Append(chars[randomIndex]);
            }
        }
        return stringBuilder.ToString();
    }
}