According to this, this command can be used: ssh-keygen -f id_rsa -e -m pem This will convert your public key to an OpenSSL compatible format. Your private key is already in PEM format and can be used as is (as Michael Hampton stated). Double check if AWS isn’t asking for a (X.509) certificate in PEM … Read more
This field is a comment, and can be changed or ignored at will. It is set to user@host by default by ssh-keygen. The OpenSSH sshd(8) man page describes the format of a public key thus: Public keys consist of the following space-separated fields: options, keytype, base64-encoded key, comment. . . . The comment field is … Read more
To change the passphrase on your default key: $ ssh-keygen -p If you need to specify a key, pass the -f option: $ ssh-keygen -p -f ~/.ssh/id_dsa then provide your old and new passphrase (twice) at the prompts. (Use ~/.ssh/id_rsa if you have an RSA key.) More details from man ssh-keygen: […] SYNOPSIS ssh-keygen [-q] … Read more