RijndaelManaged Key and vector error "Specified key is not a valid size for this algorithm".

Greetings Experts!

Will you send me an example of how to create the RijndaelManaged key and the vector and then how to convert it to a format I can save on the web.config, you see, I created it using RijndaelManaged.GenerateKey() and RijndaelManaged.GenerateIV() then converted to a string and saved it on the web.config . However when I retrieve the value from the web.config and then use Encoding.ASCII.GetBytes("Key") to pass the value to RijndaelManged.Key I get error: "Specified key is not a valid size for this algorithm". I hope this is clear, I really appreciate your help with this, I am stuck. I am using VS 2010, ASP.NET 4.0 with VB.NET 4.0,
ClassicCPLusAsked:
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vr6rConnect With a Mentor Commented:
Try using Convert.ToBase64String(key) to convert to a string to store in your webconfig, and then use Convert.FromBase64String("your_web_config_var") to convert back into a byte[] array to pass to your manage class.

I currently use this very method, except I store them as strings in sql.
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ClassicCPLusAuthor Commented:
Thank You!!!! it worked perfect :). Have a wonderful x-mas the best for 2014.
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