dsaparam

 

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 DSAPARAM(1)                  OpenSSL                  DSAPARAM(1)
 
 
 
 NAME
        dsaparam - DSA parameter manipulation and generation
 
 SYNOPSIS
        openssl dsaparam [-inform DER|PEM] [-outform DER|PEM] [-in
        filename] [-out filename] [-noout] [-text] [-C] [-rand
        file(s)] [-genkey] [numbits]
 
 DESCRIPTION
        This command is used to manipulate or generate DSA
        parameter files.
 
 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.
 
 NOTES
        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.
 
 SEE ALSO
        gendsa(1), dsa(1), genrsa(1), rsa(1)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 12/Apr/2000                   0.9.6b                  DSAPARAM(1)

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