>>>I think a better solution would be to include the username and DateTime() in the seed of Random() - yes not static any more
>>
>>Hmm, I'd think the chances of two people attempting to use the same username on the same day are quite a bit higher than 22,000,000 to 1 ?
>
> Really ? Same UserName + same date + same time . We could even add to the seed the output of a static Random ............
Wasn't wide awake this morning - forgetting the "+ same time" bit.....
>
>Update: - we can even throw in a couple of md5 hashes - just for the fun of it
>
>Update2:
>
>The problem with Michel's code is that the 'target space' is so small (double consonants really counts as a single char, and only 11 possibilites or so)
>
>By expanding the space 36 chars ^ 6 - class Michel4 - I do not get any two equal consecutive passwords - at all
>Add to those uppercase >> (26 * 2 + 10)^6 ...
>
>
>Made a simple class
>
>
> class test
> {
>
> static void Main(string[] args)
> {
> string pw1, pw2;
>
> int dups = 0;
>
> dups = 0;
>
> pw1 = Michel4.GeneratePasswordAlpha(6);
> for (int i = 10000000 * 10 ; --i != 0; ) // times 10 compared to yesterday
> {
> pw2 = Michel4.GeneratePasswordAlpha(6);
>
> if (pw1 == pw2)
> {
> Console.WriteLine("{0} {1} {2}", pw1, pw2, pw1 == pw2);
> dups++;
> }
>
> pw1 = pw2;
> }
>
>
> Console.WriteLine("Michel4 dups = {0}", dups);
>
> Console.ReadLine();
>
> }
>
> }
>
> public class Michel4
> {
> const string chars = "abcedfghijklmnopqrstuvwxyz0123456789";
> static readonly int charsLength = chars.Length;
> static Random rnd = new Random();
>
> public static string GeneratePasswordAlpha(int tnLength)
> {
> int i;
> StringBuilder sb = new StringBuilder(tnLength);
>
> for (i = tnLength; --i >= 0; )
> sb.Append(chars[rnd.Next(charsLength)]);
> return sb.ToString();
>
> }
> }
>Boy. Michel can have the busiest web site in the world by the time you've finished (G)
Best,
Viv
