title: Botan tutorials or examples for creating the SHA-256 hash of a password
body: <p>I'm porting a portion of a .NET application to Qt on Linux.  I am trying to replicate the results of a .NET function to create the SHA-256 hash of a password + salt.  The .NET code is </p>
  
  <pre><code>return new SHA256Managed().ComputeHash(buffer);
  </code></pre>
  
  <p>Where buffer is the salt concatenated to the password.  </p>
  
  <p>I considered several crytopgraphic libraries including QCA and Botan and after reading several comments, I decided to try Botan.  However, I'm not finding the right place in the documentation to perform the equivalent of the code listed above.</p>
  
  <p>Can someone point me to the place in the fine manual or a tutorial that discusses the use of Botan to create a simple hash?  I've been google searching for a couple hours without finding a solution.  There are many example of SHA-256 hashing for pipes and streams but I have yet to find the example of a simple hash calculation.</p>