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NAME

       gnutls_ia_extract_inner_secret - API function

SYNOPSIS

       #include <gnutls/extra.h>

       void  gnutls_ia_extract_inner_secret(gnutls_session_t  session,  char *
       buffer);

ARGUMENTS

       gnutls_session_t session
                   is a gnutls_session_t structure.

       char * buffer
                   pre-allocated buffer to hold 48 bytes of inner secret.

DESCRIPTION

       Copy the 48 bytes large inner secret into the specified buffer

       This  function  is  typically  used  after  the  TLS/IA  handshake  has
       concluded.   The  TLS/IA  inner secret can be used as input to a PRF to
       derive session keys.  Do not use the inner secret directly as a session
       key, because for a resumed session that does not include an application
       phase, the inner secret will be identical to the inner  secret  in  the
       original  session.  It is important to include, for example, the client
       and server randomness when deriving  a  sesssion  key  from  the  inner
       secret.

REPORTING BUGS

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

COPYRIGHT

       Copyright © 2008 Free Software Foundation.
       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 info and gnutls programs are properly installed  at  your  site,
       the command

              info gnutls

       should give you access to the complete manual.