shishi_dk - API function

       Shishi * handle
                   shishi handle as allocated by shishi_init().

       Shishi_key * key
                   input cryptographic key to use.

       const char * prfconstant
                   input array with the constant string.

       size_t prfconstantlen
                   size of input array with the constant string.

       Shishi_key * derivedkey
                   pointer to derived key (allocated by caller).

       Copyright © 2002-2022 Simon Josefsson.
       Copying  and distribution of this file, with or without modification, are permitted in any medium without
       royalty provided the copyright notice and this notice are preserved.

       DK(KEY, PRFCONSTANT) = SHISHI_RANDOM-TO-KEY(SHISHI_DR(KEY, PRFCONSTANT)).

       shishi_dk - API function

       Report bugs to <bug-shishi@gnu.org>.  GNU Shishi home page:  http://www.gnu.org/software/shishi/  General
       help using GNU software: http://www.gnu.org/gethelp/

       Returns SHISHI_OK iff successful.

       The full documentation for shishi is maintained as a Texinfo manual.  If the info and shishi programs are
       properly installed at your site, the command

              infoshishi

       should give you access to the complete manual.

shishi                                                1.0.3                                         shishi_dk(3)

#include<shishi.h>intshishi_dk(Shishi*handle,Shishi_key*key,constchar*prfconstant,size_tprfconstantlen,Shishi_key*derivedkey);