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Editorial Team
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Asked: 2026-05-16T18:22:50+00:00

I tried this: Console.WriteLine(Convert.ToBase64String(Encoding.UTF8.GetBytes(hi))); Console.WriteLine(Convert.ToBase64String(Encoding.UTF8.GetBytes(Convert.ToBase64String(Encoding.UTF8.GetBytes(hi))))); and I get different results for them, although I

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I tried this:

Console.WriteLine(Convert.ToBase64String(Encoding.UTF8.GetBytes("hi")));

Console.WriteLine(Convert.ToBase64String(Encoding.UTF8.GetBytes(Convert.ToBase64String(Encoding.UTF8.GetBytes("hi")))));

and I get different results for them, although I thought that it should be the same

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1 Answer

  1. Editorial Team

    In the second line you’re not inverting the conversion to Base64, just reapplying it.

    You want to use Convert.FromBase64String and say:

    Console.WriteLine(
     Convert.ToBase64String(
        Convert.FromBase64String(
               Convert.ToBase64String(Encoding.UTF8.GetBytes("hi")))));
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