SSH

cat id_rsa.ssh id_rsa.x509.pub > id_rsa.pem

note: PEM = ssh (priv) + x509 (pub) note: x509 = crt ///

use: id_rsa -> pem use: id_rsa.pub -> default ssh use: id_rsa.pub.pem -> pem

open-ssh -> RSA pem: ssh-keygen -p -N "" -m pem -f id_rsa.openssh

• pub key .pem: openssl rsa -pubout -in id_rsa.pem -out id_rsa.pem.pub

• pem (text) -> der (binary) openssl rsa -inform PEM -outform DER -in id_rsa.pem -out id_rsa.der