Extracting private key and key certificate from .pfx file.

gistfile1.sh

// create private key (any password is ok)
openssl pkcs12 -in xxx.pfx -nocerts -out example.key

// remove password
openssl rsa -in example.key -out example.key

// generate private/public pair
openssl pkcs12 -in xxx.pfx -out privpub.pem

// get public certificate from privpub
openssl x509 -inform pem -in privpub.pem -pubkey -out example.crt -outform pem

// remove files
rm privpub.pem
rm xxxx.pfx