title: ASCIIEncoding In Windows Phone 7
body: <p>Is there a way to use ASCIIEncoding in Windows Phone 7?</p>
  
  <p>Unless I'm doing something wrong <code>Encoding.ASCII</code> doesn't exist and I'm needing it for C# -> PHP encryption (as PHP only uses ASCII in SHA1 encryption).</p>
  
  <p>Any suggestions?</p>