Extract private key and certificate from kpcs7 (.p7b) file

I have a .p7b file. How do I extract the key and certificate? I tried openssl, but I am not able to get the exact command/options.

Thanks!

Can I get a private key from a p7b?

A P7B file only contains certificates and chain certificates (Intermediate CAs), not the private key.

How extract p7b certificate in Linux?

p7b -print_certs to extract 2 certs from the . p7b file. openssl pkcs7 -inform DER -outform PEM -in certificate. p7b -print_certs -out certificat_bundle.

Does PKCS7 contain private key?

As with the single binary certificate, the PKCS #7 package does not contain any private keys.

PKCS#7 file doesn't include private keys. As for certificate(s) you have not specified what platform you are using and how your question is related to programming.