[xmlsec] PEM Keys comparison

[Juan Luis Prieto Martinez]

Hi all,
 
I am building a library for a project using xmlSec as the main API. 
The main problem I am facing is the comparison of 2 keys extracted from a pem certificates. To do so I try to extract a key from a file and the other is passed to me by a parameter of my funciton, the parameter is already a xmlSecKey structure.
To get the first Key I do this:
        nCert0 = xmlSecCryptoAppKeyCertLoad(key0, certfile, xmlSecKeyDataFormatPem);
I am not able to handle the crypto material inside the key. So it is the case with the parameter that I use to compare with. 
 
I have tried different approaches to this issue with no success, please have you ever had this issue before?
If not can you tell me once you get the xmlSecKeyDataPtr how to extract the value to see the key?
 
Kind Regards
Juan Luis
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