cryptography - How to predict the next GUID from a given GUID? -


I've sent 10000 mails to our customers and the format of each mail 

  Http: //example.com/LogIn?key= {guid}

Unfortunately I sent guid were random guids (code generated by the test code> Guid.NewGuid () ) That's why customers have received all invalid links ...

Based on the 404 received from the webserver, I have some grids I sent. I have read that the grid generator is weak in windows so that you can predict the next GUID which you already have. Does anyone know how? If I can do that I can make grids which I have accepted, then the link will work again.

The way Windows has generated the GUID, it has changed many times, and a lot on the Internet All reasonable credible advice is completely wrong (possibly only old, maybe always completely wrong).

The last time I noticed this (some years ago, probably XP SP2), I stepped down in the OS code to see what was actually going on and it was creating a random number Was there.

I suspect that you will have a lot of luck predetermined from one GUID to another if you generate them by default


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