NAME
gendsa - generate a DSA private key from a set of
parameters
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 (3)).
Multiple files can be specified separated by a OS-dependent
character. The separator is ; for MS-Windows, , for
OpenVMS, and : for all others.
- -engine id
- specifying an engine (by it's unique
id string) will cause req to attempt to obtain a
functional reference 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)