Zur Erstellung von .pem .key aus einer .pfx-Datei

1. To convert a PFX file to a PEM file that contains both the certificate and private key:

   openssl pkcs12 -in filename.pfx -out cert.pem -nodes

2. To convert a PFX file to separate public and private key PEM files:
   • Extracts the private key form a PFX to a PEM file:

     openssl pkcs12 -in filename.pfx -nocerts -out key.pem

   • Exports the certificate (includes the public key only):

     openssl pkcs12 -in filename.pfx -clcerts -nokeys -out cert.pem

   • Removes the password (paraphrase) from the extracted private key (optional):

     openssl rsa -in key.pem -out server.key