GENDSA 1 2003-07-24 0.9.9-dev OpenSSL

NAME

gendsa - generate a DSA private key from a set of parameters

LIBRARY

libcrypto, -lcrypto

SYNOPSIS

ooppeennssssll ggeennddssaa [--oouutt ffiilleennaammee] [--ddeess] [--ddeess33] [--iiddeeaa] [--rraanndd ffiillee((ss))] [--eennggiinnee iidd] [ppaarraammffiillee]

DESCRIPTION

The ggeennddssaa command generates a DSA private key from a DSA parameter file (which will be typically generated by the ooppeennssssll ddssaappaarraamm command).

OPTIONS

--ddeess||--ddeess33||--iiddeeaa 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.
--rraanndd ffiillee((ss)) a file or files containing random data used to seed the random number
generator, or an EGD socket (see _R_A_N_D___e_g_d(3)). Multiple files can be specified separated by a OS-dependent character. The separator is ;; for MS-Windows, ,, for OpenVMS, and :: for all others.
--eennggiinnee iidd specifying an engine (by it's unique iidd string) will cause rreeqq
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.
ppaarraammffiillee 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 ooppeennssssll ddssaappaarraamm 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

_o_p_e_n_s_s_l___d_s_a_p_a_r_a_m(1), _o_p_e_n_s_s_l___d_s_a(1), _o_p_e_n_s_s_l___g_e_n_r_s_a(1), _o_p_e_n_s_s_l___r_s_a(1)