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NTP-KEYGEN(8)			       Programmer's Manual			    NTP-KEYGEN(8)

NAME
       ntp-keygen - Create a NTP host key

SYNOPSIS
       ntp-keygen [-flag [value]]... [--opt-name [[=| ]value]]...

       All arguments must be options.

DESCRIPTION
       This  manual  page briefly documents the ntp-keygen command.  If there is no new host key,
       look for an existing one.  If one is not found, create it.

OPTIONS
       -c scheme, --certificate=scheme
	      certificate scheme.

	      scheme is one of RSA-MD2, RSA-MD5, RSA-SHA, RSA-SHA1, RSA-MDC2, RSA-RIPEMD160, DSA-
	      SHA, or DSA-SHA1.

	      Select  the  certificate message digest/signature encryption scheme.  Note that RSA
	      schemes must be used with a RSA sign key and DSA schemes must be used  with  a  DSA
	      sign key.  The default without this option is RSA-MD5.

       -d, --debug-level
	      Increase output debug message level.  This option may appear an unlimited number of
	      times.

	      Increase the debugging message output level.

       -D string, --set-debug-level=string
	      Set the output debug message level.  This option may appear an unlimited number  of
	      times.

	      Set the output debugging level.  Can be supplied multiple times, but each overrides
	      the previous value(s).

       -e, --id-key
	      Write IFF or GQ identity keys.

	      Write the IFF or GQ client keys to the standard output.  This is intended for auto-
	      matic key distribution by mail.

       -G, --gq-params
	      Generate GQ parameters and keys.

	      Generate	parameters and keys for the GQ identification scheme, obsoleting any that
	      may exist.

       -H, --host-key
	      generate RSA host key.

	      Generate new host keys, obsoleting any that may exist.

       -I, --iffkey
	      generate IFF parameters.

	      Generate parameters for the IFF identification  scheme,  obsoleting  any	that  may
	      exist.

       -i issuer-name, --issuer-name=issuer-name
	      set issuer name.

	      Set the suject name to name.  This is used as the subject field in certificates and
	      in the file name for host and sign keys.

       -M, --md5key
	      generate MD5 keys.

	      Generate MD5 keys, obsoleting any that may exist.

       -m modulus, --modulus=modulus
	      modulus.	This option takes an integer number as its argument.  The value of  modu-
	      lus is constrained to being:
		  in the range	256 through 2048

	      The number of bits in the prime modulus.	The default is 512.

       -P, --pvt-cert
	      generate PC private certificate.

	      Generate a private certificate.  By default, the program generates public certifi-
	      cates.

       -p passwd, --pvt-passwd=passwd
	      output private password.

	      Encrypt generated files containing private data with the specified password and the
	      DES-CBC algorithm.

       -q passwd, --get-pvt-passwd=passwd
	      input private password.

	      Set the password for reading files to the specified password.

       -S sign, --sign-key=sign
	      generate sign key (RSA or DSA).

	      Generate a new sign key of the designated type, obsoleting any that may exist.  By
	      default, the program uses the host key as the sign key.

       -s host, --subject-name=host
	      set subject name.

	      Set the issuer name to name.  This is used for the issuer field in certificates and
	      in the file name for identity files.

       -T, --trusted-cert
	      trusted certificate (TC scheme).

	      Generate a trusted certificate.  By default, the program generates a non-trusted
	      certificate.

       -V num, --mv-params=num
	      generate <num> MV parameters.  This option takes an integer number as its argument.

	      Generate parameters and keys for the Mu-Varadharajan (MV) identification scheme.

       -v num, --mv-keys=num
	      update <num> MV keys.  This option takes an integer number as its argument.

	      This option has not been fully documented.

       -?, --help
	      Display extended usage information and exit.

       -!, --more-help
	      Extended usage information passed thru pager.

       -> [rcfile], --save-opts[=rcfile]
	      Save the option state to rcfile.	The default is the last configuration file listed
	      in the OPTION PRESETS section, below.

       -< rcfile, --load-opts=rcfile, --no-load-opts
	      Load options from rcfile.  The no-load-opts form will disable the loading of ear-
	      lier RC/INI files.  --no-load-opts is handled early, out of order.

       - [{v|c|n}], --version[={v|c|n}]
	      Output version of program and exit.  The default mode is `v', a simple version.
	      The `c' mode will print copyright information and `n' will print the full copyright
	      notice.

OPTION PRESETS
       Any option that is not marked as not presettable may be preset by loading values from con-
       figuration ("RC" or ".INI") file(s) and values from environment variables named:
	 NTP_KEYGEN_<option-name> or NTP_KEYGEN
       The  environmental  presets  take  precedence (are processed later than) the configuration
       files.  The homerc files are "$HOME", and ".".  If any of these are directories, then  the
       file .ntprc is searched for within those directories.

AUTHOR
       David L. Mills and/or others
       Please send bug reports to:  http://bugs.ntp.org, bugs@ntp.org

       see html/copyright.html

       This manual page was AutoGen-erated from the ntp-keygen option definitions.

(ntp 4.2.6p5)				    2011-12-24				    NTP-KEYGEN(8)
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