Good passphrases are 10-30 characters long, are not simple sentences or otherwise easily guessable (English prose has only 1-2 bits of entropy per character, and provides very bad passphrases and contain a mix of upper and lowercase letters, num bers, and non-alphanumeric characters.
This option is useful to delete hashed hosts (see the rdc client 6.1 vista -H option above).
Id : key_id Revokes a certificate with the specified key ID string.National Security Agency (NSA aspects of its security have been called into question.i ' This option will read an unencrypted private (or public) key file in SSH2-compatible format and print an OpenSSH compatible private (or public) key to stdout.The ssh-keygen utility is used to generate, manage, and convert authentication keys.By default, certificates are valid from unix Epoch to the distant future.R hostname Removes all keys belonging to hostname from a known_hosts file.Please see the certificates section for details.
For example: 52w1d (valid from now to 52 weeks and one day from now -4w:4w (valid from four weeks ago to four weeks from now : (valid from 12:30 PM, January 1st, 2010 xp sp2 activation key to 12:30 PM, January 1st, 2011 -1d:20110101 (valid from yesterday to midnight.
Revoking keys using a KRL specification offers explicit control over the types of record used to revoke keys and may be used to directly revoke certificates by serial number or key ID without having the com plete original certificate on hand.
KRLs may be updated using the -u flag in addition to -k.
W generator Specify desired generator when testing candidate moduli for DH- GEX.
C comment Provides new comment.The comment can tell what the key is for, or whatever is useful.ssh/id_rsa Contains the protocol version 2 RSA authentication identity of the user.What's the difference between versions 1 and 2 of the SSH protocol?Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo de Raadt and Dug Song removed many bugs, re-added newer features and created OpenSSH.Section, Configuring ssh-agent with a GUI.n ' Extract the public key from smartcard.If the passphrase is lost or forgotten, a new key must be generated and copied to the corresponding public key to other machines.This operation is only supported for RSA1 keys and keys stored in the newer OpenSSH format.