| <SignatureProperties xmlns="http://www.w3.org/2000/09/xmldsig#" xmlns:foo="http://www.usps.gov/foo" Id="signature-properties-1"> | |
| <SignatureProperty Target="#signature"> | |
| <SignerAddress xmlns="urn:demo"><IP>192.168.21.138</IP></SignerAddress> | |
| </SignatureProperty> | |
| </SignatureProperties> |