Extract public key from cer file to use in nusoap

Question

Can someone tell me how can I extract a public keu in .pem format from a .cer file ? I'm trying to configure webservice over https with nusoap.

Tks, ED

Answer 1

Any time I need to convert certificate formats I like to hop on my Linux shell and use the openssl CLI.

Take a look at this page for common openssl commands. You will be most interested in the one titled "Convert DER (.crt .cer .der) to PEM".

Answer 2

openssl x509 -inform der -in <certificate> -noout -pubkey

Should print out the public key.