Extract public/private key from PKCS12 file for later use in SSH-PK-Authentication
certificate, openssl, pkcs#12, ssh, x509
Solution
You can use following commands to extract public/private key from a PKCS#12 container:
PKCS#1 Private key
openssl pkcs12 -in yourP12File.pfx -nocerts -out privateKey.pem
Certificates:
openssl pkcs12 -in yourP12File.pfx -clcerts -nokeys -out publicCert.pem
Problem
I want to extract the public and private key from my `PKCS#12` file for later use in SSH-Public-Key-Authentication. Right now, I'm generating keys via ssh-keygen which I put into `.ssh/authorized_key`, respective somewhere on the client-side. In future, I want to use the keys from a `PKCS#12` container, so I've to extract the public-key first from `PKCS#12` and then put them into the `.ssh/authorized_keys` file. Is there any chance to get this working via `openssl`? Are the keys in `PKCS#12` compatible for ssh-public-key authentication?