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dsaparam (1)
  • >> dsaparam (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
  • dsaparam (1) ( Linux man: Команды и прикладные программы пользовательского уровня )


         dsaparam - DSA parameter manipulation and generation


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


         This command is used to manipulate or generate DSA parameter


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


         PEM format DSA parameters use the header and footer lines:
          -----BEGIN DSA PARAMETERS-----
          -----END DSA PARAMETERS-----
         DSA parameter generation is a slow process and as a result
         the same set of DSA parameters is often used to generate
         several distinct keys.


         gendsa(1), dsa(1), genrsa(1), rsa(1)

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