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NTP-KEYGEN(1)                                Programmer's Manual                               NTP-KEYGEN(1)



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 previ-ous previous
              ous 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  automatic  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 modulus is con-strained constrained
              strained 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 certificates.

       -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 earlier 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 configuration
       ("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 4.2.6)                                      2009-12-10                                    NTP-KEYGEN(1)