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Diff for /src/usr.bin/ssh/ssh-keygen.1 between version 1.23 and 1.23.2.2

version 1.23, 2000/10/09 21:30:43 version 1.23.2.2, 2001/02/19 17:19:29
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   .\"     $OpenBSD$
   .\"
 .\"  -*- nroff -*-  .\"  -*- nroff -*-
 .\"  .\"
 .\" Author: Tatu Ylonen <ylo@cs.hut.fi>  .\" Author: Tatu Ylonen <ylo@cs.hut.fi>
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 .Nd authentication key generation  .Nd authentication key generation
 .Sh SYNOPSIS  .Sh SYNOPSIS
 .Nm ssh-keygen  .Nm ssh-keygen
 .Op Fl dq  .Op Fl q
 .Op Fl b Ar bits  .Op Fl b Ar bits
   .Op Fl t Ar type
 .Op Fl N Ar new_passphrase  .Op Fl N Ar new_passphrase
 .Op Fl C Ar comment  .Op Fl C Ar comment
 .Op Fl f Ar output_keyfile  .Op Fl f Ar output_keyfile
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 .Nm ssh-keygen  .Nm ssh-keygen
 .Fl l  .Fl l
 .Op Fl f Ar input_keyfile  .Op Fl f Ar input_keyfile
 .Nm ssh-keygen  
 .Fl R  
 .Sh DESCRIPTION  .Sh DESCRIPTION
 .Nm  .Nm
 generates and manages authentication keys for  generates and manages authentication keys for
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 .Nm  .Nm
 defaults to generating an RSA key for use by protocols 1.3 and 1.5;  defaults to generating an RSA key for use by protocols 1.3 and 1.5;
 specifying the  specifying the
 .Fl d  .Fl t
 flag will create a DSA key instead for use by protocol 2.0.  option allows you to create a key for use by protocol 2.0.
 .Pp  .Pp
 Normally each user wishing to use SSH  Normally each user wishing to use SSH
 with RSA or DSA authentication runs this once to create the authentication  with RSA or DSA authentication runs this once to create the authentication
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 appended.  appended.
 The program also asks for a passphrase.  The program also asks for a passphrase.
 The passphrase may be empty to indicate no passphrase  The passphrase may be empty to indicate no passphrase
 (host keys must have empty passphrase), or it may be a string of  (host keys must have an empty passphrase), or it may be a string of
 arbitrary length.  arbitrary length.
 Good passphrases are 10-30 characters long and are  Good passphrases are 10-30 characters long and are
 not simple sentences or otherwise easily guessable (English  not simple sentences or otherwise easily guessable (English
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 Used by  Used by
 .Pa /etc/rc  .Pa /etc/rc
 when creating a new key.  when creating a new key.
   .It Fl t Ar type
   Specifies the type of the key to create.
   The possible values are
   .Dq rsa1
   for protocol version 1 and
   .Dq rsa
   or
   .Dq dsa
   for protocol version 2.
   The default is
   .Dq rsa .
 .It Fl C Ar comment  .It Fl C Ar comment
 Provides the new comment.  Provides the new comment.
 .It Fl N Ar new_passphrase  .It Fl N Ar new_passphrase
 Provides the new passphrase.  Provides the new passphrase.
 .It Fl P Ar passphrase  .It Fl P Ar passphrase
 Provides the (old) passphrase.  Provides the (old) passphrase.
 .It Fl R  
 If RSA support is functional, immediately exits with code 0.  If RSA  
 support is not functional, exits with code 1.  This flag will be  
 removed once the RSA patent expires.  
 .It Fl x  .It Fl x
 This option will read a private  This option will read a private
 OpenSSH DSA format file and print a SSH2-compatible public key to stdout.  OpenSSH DSA format file and print a SSH2-compatible public key to stdout.
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 print an OpenSSH compatible private (or public) key to stdout.  print an OpenSSH compatible private (or public) key to stdout.
 .It Fl y  .It Fl y
 This option will read a private  This option will read a private
 OpenSSH DSA format file and print an OpenSSH DSA public key to stdout.  OpenSSH format file and print an OpenSSH public key to stdout.
 .El  .El
 .Sh FILES  .Sh FILES
 .Bl -tag -width Ds  .Bl -tag -width Ds
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 The contents of this file should be added to  The contents of this file should be added to
 .Pa $HOME/.ssh/authorized_keys2  .Pa $HOME/.ssh/authorized_keys2
 on all machines  on all machines
 where you wish to log in using DSA authentication.  where you wish to log in using public key authentication.
 There is no need to keep the contents of this file secret.  There is no need to keep the contents of this file secret.
 .El  .El
 .Sh AUTHOR  .Sh AUTHORS
 Tatu Ylonen <ylo@cs.hut.fi>  OpenSSH is a derivative of the original and free
 .Pp  ssh 1.2.12 release by Tatu Ylonen.
 OpenSSH  Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos,
 is a derivative of the original (free) ssh 1.2.12 release, but with bugs  Theo de Raadt and Dug Song
 removed and newer features re-added.  removed many bugs, re-added newer features and
 Rapidly after the 1.2.12 release,  created OpenSSH.
 newer versions bore successively more restrictive licenses.  Markus Friedl contributed the support for SSH
 This version of OpenSSH  protocol versions 1.5 and 2.0.
 .Bl -bullet  
 .It  
 has all components of a restrictive nature (i.e., patents, see  
 .Xr ssl 8 )  
 directly removed from the source code; any licensed or patented components  
 are chosen from  
 external libraries.  
 .It  
 has been updated to support ssh protocol 1.5.  
 .It  
 contains added support for  
 .Xr kerberos 8  
 authentication and ticket passing.  
 .It  
 supports one-time password authentication with  
 .Xr skey 1 .  
 .El  
 .Sh SEE ALSO  .Sh SEE ALSO
 .Xr ssh 1 ,  .Xr ssh 1 ,
 .Xr ssh-add 1 ,  .Xr ssh-add 1 ,
 .Xr ssh-agent 1 ,  .Xr ssh-agent 1 ,
 .Xr sshd 8 ,  .Xr sshd 8
 .Xr ssl 8  
Legend:
Removed from v.1.23  
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  Added in v.1.23.2.2