Provided by: gnutls-doc_3.7.3-4ubuntu1.7_all 
      
    
NAME
       gnutls_x509_privkey_export - API function
SYNOPSIS
       #include <gnutls/x509.h>
       int   gnutls_x509_privkey_export(gnutls_x509_privkey_t   key,   gnutls_x509_crt_fmt_t   format,   void  *
       output_data, size_t * output_data_size);
ARGUMENTS
       gnutls_x509_privkey_t key
                   Holds the key
       gnutls_x509_crt_fmt_t format
                   the format of output params. One of PEM or DER.
       void * output_data
                   will contain a private key PEM or DER encoded
       size_t * output_data_size
                   holds the size of output_data (and will be replaced by the actual size of parameters)
DESCRIPTION
       This function will export the private key to a PKCS1 structure for  RSA  or  RSA-PSS  keys,  and  integer
       sequence for DSA keys. Other keys types will be exported in PKCS8 form.
       If the structure is PEM encoded, it will have a header of "BEGIN RSA PRIVATE KEY".
       It  is  recommended to use gnutls_x509_privkey_export_pkcs8() instead of this function, when a consistent
       output format is required.
RETURNS
       On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative error value.
REPORTING BUGS
       Report bugs to <bugs@gnutls.org>.
       Home page: https://www.gnutls.org
COPYRIGHT
       Copyright © 2001- Free Software Foundation, Inc., and others.
       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.
SEE ALSO
       The  full  documentation  for  gnutls  is  maintained as a Texinfo manual.  If the /usr/share/doc/gnutls/
       directory does not contain the HTML form visit
       https://www.gnutls.org/manual/
gnutls                                                3.7.3                        gnutls_x509_privkey_export(3)