There is no way to recover a lost passphrase. Passphrase can be changed later by using the -p Upper and lowercase letters, numbers, and non-alphanumeric characters. Per character, and provides very bad passphrases), and contain a mix of Or otherwise easily guessable (English prose has only 1-2 bits of entropy Good passphrases are 10-30 characters long, are not simple sentences Of words, punctuation, numbers, whitespace, or any string of characters you Passphrase is similar to a password, except it can be a phrase with a series Must have an empty passphrase), or it may be a string of arbitrary length. The passphrase may be empty to indicate no passphrase (host keys The public key is stored in a file with the Normally this program generates the key and asks for a file in Normally each user wishing to use SSH with public keyĪuthentication runs this once to create the authentication key inĪdministrator may use this to generate host keys, as seen in Generate and update Key Revocation Lists, and to test whether given keys Ssh-keygen is also used to generate groupsįor use in Diffie-Hellman group exchange (DH-GEX).
The type of key to be generated is specified with the
Ssh-keygen can create keys for use by SSH protocol Ssh-keygen generates, manages and converts f allowed_signers_file -I signer_identity -n namespace -s signature_file Y match-principals -I signer_identity -f allowed_signers_file s signature_file -f allowed_signers_file OpenSSH authentication key utility SYNOPSIS ssh-keygen
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