GENDSA(1)                   OpenSSL                   GENDSA(1)





NAME
       gendsa - generate a DSA private key from a set of param-
       eters

SYNOPSIS
       openssl gendsa [-out filename] [-des] [-des3] [-idea]
       [-rand file(s)] [-engine id] [paramfile]

DESCRIPTION
       The gendsa command generates a DSA private key from a
       DSA parameter file (which will be typically generated by
       the openssl dsaparam command).

OPTIONS
       -des|-des3|-idea
           These options encrypt the private key with the DES,
           triple DES, or the IDEA ciphers respectively before
           outputting it. A pass phrase is prompted for.  If
           none of these options is specified no encryption is
           used.

       -rand file(s)
           a file or files containing random data used to seed
           the random number generator, or an EGD socket (see
           RAND_egd(3)).  Multiple files can be specified sepa-
           rated by a OS-dependent character.  The separator is
           ; for MS-Windows, , for OpenVMS, and : for all oth-
           ers.

       -engine id
           specifying an engine (by it's unique id string) will
           cause req to attempt to obtain a functional refer-
           ence to the specified engine, thus initialising it
           if needed. The engine will then be set as the
           default for all available algorithms.

       paramfile
           This option specifies the DSA parameter file to use.
           The parameters in this file determine the size of
           the private key. DSA parameters can be generated and
           examined using the openssl dsaparam command.

NOTES
       DSA key generation is little more than random number
       generation so it is much quicker that RSA key generation
       for example.

SEE ALSO
       dsaparam(1), dsa(1), genrsa(1), rsa(1)



0.9.7c                     2003-01-30                 GENDSA(1)
