Signing a xml with specific structure

[japs 0]

I´ve been searching on how to do this but with no luck, the thing is, i need to sign a certificate and the xml result must match the example below:

 

<Signer>
 <dsig:X509IssuerName>dnQualifier=wBz3yptkPxbHI/\+LUUeH5R6rQfI=,CN=.cc-admin-x,
 OU=.cc-ra-1a.s430-2.ca.example.com,O=.ca.example.com</dsig:X509IssuerName>
 <dsig:X509SerialNumber>6992</dsig:X509SerialNumber>
</Signer>

The first thing i did was to create a private.key and a some_file.pem using PHP written on the first example here and i did it successfully. Then, i used this library(robrichards/xmlseclibs) to sign the certificate and everything went ok, but the final result is not the same, the differences are:

• The sign portion appears at the end of the file
• The hash string is enormous instead of the 29 caracters shown in the example
• The dnQualifier, CN=, OU= and O do not appear on the xml even if i did fill them when creating the .pem file
• Finally the X509SerialNumber does not appear to.

To create the xml i´m using the new DomDocument and i´m quite new doing this, could anyone point me out in the right direction?

Regards, thanks for your time.