title: how to digitally sign xml string in android
body: <p>Hi all i have xml string that I should send along with HttpRequest to the URL. Before sending it to the server,I need to digitally sign the xml string with password for security purpose.
  I want to know how to implement this in android. To do xml digital signing,we need following libraries: javax.xml.crypto,javax.xml.crypto.dsig,javax.xml.crypto.dsig.keyinfo,javax.xml.crypto.dsig.spec,javax.xml.crypto.dom,javax.xml.crypto.dsig.dom
  But unfortunately this libraries are not supported by android.
  Is there any other way to digitally sign xml string in android.
  Plz note I am to do it from java but not in android.
  Thanks in advance</p>