Difference between SHA256CryptoServiceProvider and SHA256Managed
<p>The .Net SHA256Managed class is supported in all framework versions while the SHA256CryptoServiceProvider class is only supported from framework 3.5 and above.</p>

<p>Why is the SHA256CryptoServiceProvider introduced ? It seems to do the same as the  SHA256Managed class, but the latter performs better. </p>

<p>What am I missing and why should I use the SHA256CryptoServiceProvider ?</p>
