Certificate conversions etc...
https://www.xolphin.com/support/Certificate_conversions/Convert_pfx_file_to_pem_file Convert pfx file to pem file Conversion to a combined PEM file To convert a PFX file to a PEM file that contains both the certificate and private key, the following command needs to be used: # openssl pkcs12 -in filename.pfx -out cert.pem -nodes Conversion to separate PEM files We can extract the private key form a PFX to a PEM file with this command: # openssl pkcs12 -in filename.pfx -nocerts -out key.pem Exporting the certificate only: # openssl pkcs12 -in filename.pfx -clcerts -nokeys -out cert.pem Removing the password from the extracted private key: # openssl rsa -in key.pem -out server.key https://www.aleksey.com/xmlsec/xmldsig-verifier.html https://www.cryptosys.net/sc14n/example-signed-xmldsig.html https://github.com/robrichards/xmlseclibs