NAME

       gnutls_x509_privkey_export_pkcs8 - API function

SYNOPSIS

       #include <gnutls/x509.h>

       int   gnutls_x509_privkey_export_pkcs8(gnutls_x509_privkey_t   key,  gnutls_x509_crt_fmt_t
       format, const  char  *  password,  unsigned  int  flags,  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.

       const char * password
                   the password that will be used to encrypt the key.

       unsigned int flags
                   an ORed sequence of gnutls_pkcs_encrypt_flags_t

       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 PKCS8 structure.  Both RSA and DSA keys can
       be  exported.  For  DSA  keys  we use PKCS 11 definitions. If the flags do not specify the
       encryption cipher, then the default 3DES (PBES2) will be used.

       The  password can be either ASCII or UTF-8 in the default  PBES2  encryption  schemas,  or
       ASCII for the PKCS12 schemas.

       If  the  buffer  provided is not long enough to hold the output, then *output_data_size is
       updated and GNUTLS_E_SHORT_MEMORY_BUFFER will be returned.

       If the structure is PEM encoded, it will have a header of "BEGIN ENCRYPTED PRIVATE KEY" or
       "BEGIN PRIVATE KEY" if encryption is not used.

RETURNS

       In case of failure a negative error code will be returned, and 0 on success.

REPORTING BUGS

       Report bugs to <bugs@gnutls.org>.
       Home page: http://www.gnutls.org

COPYRIGHT

       Copyright © 2001-2021 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

       http://www.gnutls.org/manual/