pskc_set_key_data_secret - API function

       pskc_key_t * key
                   a pskc_key_t handle, from pskc_get_keypackage().

       const char * data
                   the byte array with the key to set, of len length.

       size_t len  length of data byte array.

       Copyright © 2012-2020 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.

libpskc                                              2.6.12                          pskc_set_key_data_secret(3)

       Set  the  PSKC KeyPackage Key Data Secret value.  The data data is copied into the key handle, so you may
       modify or deallocate the data pointer after calling this function.  The data is base64  encoded  by  this
       function.  On errors, the old secret is not modified.

       pskc_set_key_data_secret - API function

       Report  bugs  to <oath-toolkit-help@nongnu.org>.  libpskc home page: https://www.nongnu.org/oath-toolkit/
       General help using GNU software: http://www.gnu.org/gethelp/

PSKC_BASE64_ERROR on base64 encoding errors, PSKC_MALLOC_ERROR on memory allocation errors, or PSKC_OK on
       success.

       2.2.0

#include<pskc.h>intpskc_set_key_data_secret(pskc_key_t*key,constchar*data,size_tlen);