1 <?xml version="1.0" encoding="ISO-8859-1"?>
 2 <Envelope xmlns="http://example.org/envelope">
 3   <Body>
 4     Olá mundo
 5   </Body>
 6   <Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
 7     <SignedInfo>
 8       <CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
 9       <SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256" />
10       <Reference URI="">
11         <Transforms>
12           <Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" />
13         </Transforms>
14         <DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" />
15         <DigestValue>XmEzFTF6w33nhHfeQqIZKwITz3H2mbBvShxWn+ML/7s=</DigestValue>
16       </Reference>
17     </SignedInfo>
18     <SignatureValue>C/NE8YqqNcySFxRazwbxZSUsoAoeqgbEDiVn+yg1zZY1Evb7VMV1MdoDJM39f7L26e9H//br6sjHZn7s+LGCJp9F2ZmCgiJxSOxqy2yCt6perxoKF3MDQmDRnMtglKeWNSBfYZRWEcA64PMMHz5WS5DCIVTcgU7lFzgMpUfYLOs=</SignatureValue>
19     <KeyInfo>
20       <KeyValue><RSAKeyValue><Modulus>4IlzOY3Y9fXoh3Y5f06wBbtTg94Pt6vcfcd1KQ0FLm0S36aGJtTSb6pYKfyX7PqCUQ8wgL6xUJ5GRPEsu9gyz8ZobwfZsGCsvu40CWoT9fcFBZPfXro1Vtlh/xl/yYHm+Gzqh0Bw76xtLHSfLfpVOrmZdwKmSFKMTvNXOFd0V18=</Modulus><Exponent>AQAB</Exponent></RSAKeyValue></KeyValue>
21     </KeyInfo>
22   </Signature>
23 </Envelope>