A blog by Devendra Tewari
The following openssl command can be used to export private key and certificate in a pfx or p12 file to pem
openssl pkcs12 -nodes -in file.pfx -out key.pem -passin pass:foobar
Add -nocerts if you don’t want to export certificate.
If you need the public key for the private key in key.pem
openssl rsa -in key.pem -out key.pub -pubout
If you need information on the public key (modulus, exponent…)
openssl rsa -pubin -in key.pub -text
You can also obtain the same information from the private key file
openssl rsa -in key.pem -pubout -text
If you need to create pfx from private key and certificate in pem format
openssl pkcs12 -inkey key.pem -in cert.pem -export -out file.pfx -passout pass:foobar