puttygen

https://linux.die.net/man/1/puttygen

Convert the .ppk files to the regular ssh style key files (called PEM files - even though they don't get a .pem in the file name).

• puttygen id_dsa.ppk -O private-openssh -o your_id_dsa

puttygen id_dsa.ppk -O private-openssh -o your_id_dsa
puttygen: cannot perform this action on a public-key-only input file

puttygen -O fingerprint your_public_key.pub

Related terms

• ssh-keygen
• .ppk
• .pem

See also

• PuTTY, puttygen, ppk, plink, pageant, pscp, KiTTY
• SSH: ssh, TLS, .ppk, .pem, .crt, .pub, ED25519, Key exchange method (KEX), public key, private key, ssh -Q kex, IAMUserSSHKeys, known_hosts, ssh tunnel, Dropbear

https://unix.stackexchange.com/questions/74545/what-is-the-difference-between-an-openssh-key-and-putty-key