SHA256.Create

Experimenting with the SHA256 class and now struggling with the Create method overload that takes the hashname as a parameter

Code:

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SHA256 alg1 = SHA256.Create(); // returns a default SHA256Managed instance
SHA256 alg2 = new SHA256Cng(); // returns a SHA256Cng instance
SHA256 alg3 = SHA256.Create("SHA256Cng"); //always returns null

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Guess I'm not passing a correct string !?!?
Any suggestions ?

According to MSDN, you can't get SHA256Cng with the String Create Method:
http://msdn.microsoft.com/library/we...v=vs.110).aspx

It doesn't list any additional valid parameters for the SHA256 class.

Have a look into the ComputeHash method as well