![]() Ssh-keygen is also used to generate groups for use in Diffie-Hellman group exchange (DH-GEX). If invoked without any arguments, ssh-keygen will generate an RSA key. The type of key to be generated is specified with the -t option. ssh-keygen can create keys for use by SSH protocol version 2. Ssh-keygen generates, manages and converts authentication keys for ssh(1). ![]() Y verify -f allowed_signers_file -I signer_identity -n namespace -s signature_file Retrieve the fingerprint of a key in MD5 Hex: ssh-keygen -l -E md5 -f ~/.ssh/filenameĬhange the password of a key: ssh-keygen -p -f ~/.ssh/filenameĬhange the type of the key format (for example from OPENSSH format to PEM), the file will be rewritten in-place: ssh-keygen -p -N "" -m PEM -f ~/.ssh/OpenSSH_private_key Remove the keys of a host from the known_hosts file (useful when a known host has a new key): ssh-keygen -R remote_host Generate an RSA 4096-bit key with email as a comment: ssh-keygen -t dsa|ecdsa|ed25519|rsa -b 4096 -C " comment|email" ![]() Generate an ed25519 key with 100 key derivation function rounds: ssh-keygen -t ed25519 -a 100 ![]() Specify file in which to save the key: ssh-keygen -f ~/.ssh/filename OpenSSH authentication key utility Examples (TL DR) ![]()
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