HP Open Source Security for OpenVMS Volume 2:...

OpenSSL Command Line Interface (CLI) Reference

dsa

enc

NAME

Synopsis  

openssl dsaparam [-inform DER|PEM] [-outform DER|PEM] [-in filename] [-out filename] [-noout] [-text] [-C] [-rand file(s)] [-genkey] [-engine id] [numbits]

 DESCRIPTION  

 OPTIONS  

• -inform DER|PEM
  
  This specifies the input format. The DER option uses an ASN1 DER encoded form compatible with RFC2459 (PKIX) DSS-Parms that is a SEQUENCE consisting of p, q and g respectively. The PEM form is the default format: it consists of the DER format base64 encoded with additional header and footer lines.



• -outform DER|PEM
  
  This specifies the output format, the options have the same meaning as the -inform option.



• -in filename
  
  This specifies the input filename to read parameters from or standard input if this option is not specified. If the numbits parameter is included then this option will be ignored.



• -out filename
  
  This specifies the output filename parameters to. Standard output is used if this option is not present. The output filename should not be the same as the input filename.



• -noout
  
  this option inhibits the output of the encoded version of the parameters.



• -text
  
  this option prints out the DSA parameters in human readable form.



• -C
  
  this option converts the parameters into C code. The parameters can then be loaded by calling the get_dsaXXX() function.



• -genkey
  
  this option will generate a DSA either using the specified or generated parameters.



• -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 separated by a OS-dependent character. The separator is ; for MS-Windows, , for OpenVMS, and : for all others.



• numbits
  
  this option specifies that a parameter set should be generated of size numbits. It must be the last option. If this option is included then the input file (if any) is ignored.



• -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.

 NOTES  

 -----BEGIN DSA PARAMETERS-----
 -----END DSA PARAMETERS-----

 SEE ALSO  

dsa

enc