NAME

gendsa − Generate a DSA private key from a set of parameters

SYNOPSIS

openssl gendsa [−out filename] [−des] [−des3] [−idea] [−rand filename] [paramfile]

OPTIONS

−des|−des3|−idea
Encrypts 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 filename
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 separated by an OS-dependent character. The separator is a semicolon (;) for MS-Windows, a comma (,) for OpenVMS, and a colon (:) for all others. 

paramfileSpecifies 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. 

DESCRIPTION

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

NOTES

DSA key generation is little more than random number generation, so it is much quicker than RSA key generation. 

SEE ALSO

Commands: dsaparam(1ssl), dsa(1ssl), genrsa(1ssl), rsa(1ssl)