<?xml version="1.0" encoding="UTF-8"?>
<foo:Foo xmlns:foo="http://example.com/foo#" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:ec="http://www.w3.org/2001/10/xml-exc-c14n#" ID="foo">
  <foo:Bar>bar</foo:Bar>
  <ds:Signature>
    <ds:SignedInfo>
      <ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
      <ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/>
      <ds:Reference URI="cid:fooDocument">
        <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
        <ds:DigestValue>tdQEXD9Gb6kf4sxqvnkjKhpXzfEE96JucW4KHieJ33g=</ds:DigestValue>
      </ds:Reference>
    </ds:SignedInfo>
    <ds:SignatureValue>JI5XLfznf8BsNA5vtm0kPG5kni983qrJV1EFx4oZnb6tPvARvPbtR1oEaxnB5ROQJ6xzBuuxDsUFT1BNNUR8vL1S2qPk80USXwNhl0Cfa4mDULNw1rRhN6q82VEvAC/Hb32mvgKDLlJZymdafZhUUeEmaQj+YHsTU54kPCY5w+E=</ds:SignatureValue>
  </ds:Signature>
</foo:Foo>