This is a simple example of validating an XML Signature using theJSR 105 API. The example assumes the validating key is containedin a KeyValue KeyInfo element in the XML Signature.Command Line Usage:  $ export JWSDP_HOME=<pathname to JWSDP>  $ $JWSDP_HOME/apache-ant/bin/ant  This will validate the signature in the file envelopedSignature.xml in   the current working directory.   To validate a different signature, run as follows:  $ $JWSDP_HOME/apache-ant/bin/ant -Dsample.args="signature.xml"     where "signature.xml" is the pathname of the file.