gnutls_prf_raw man page on GhostBSD
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gnutls_prf_raw(3) gnutls gnutls_prf_raw(3)
NAME
gnutls_prf_raw - access the TLS PRF directly
SYNOPSIS
#include <gnutls/gnutls.h>
int gnutls_prf_raw(gnutls_session_t session, size_t label_size, const
char * label, size_t seed_size, const char * seed, size_t outsize, char
* out);
ARGUMENTS
gnutls_session_t session
is a gnutls_session_t structure.
size_t label_size
length of the label variable.
const char * label
label used in PRF computation, typically a short string.
size_t seed_size
length of the seed variable.
const char * seed
optional extra data to seed the PRF with.
size_t outsize
size of pre-allocated output buffer to hold the output.
char * out pre-allocate buffer to hold the generated data.
DESCRIPTION
Apply the TLS Pseudo-Random-Function (PRF) using the master secret on
some data.
The label variable usually contain a string denoting the purpose for
the generated data. The seed usually contain data such as the client
and server random, perhaps together with some additional data that is
added to guarantee uniqueness of the output for a particular purpose.
Because the output is not guaranteed to be unique for a particular ses‐
sion unless seed include the client random and server random fields
(the PRF would output the same data on another connection resumed from
the first one), it is not recommended to use this function directly.
The gnutls_prf() function seed the PRF with the client and server ran‐
dom fields directly, and is recommended if you want to generate pseudo
random data unique for each session.
RETURNS
GNUTLS_E_SUCCESS on success, or an error code.
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.
gnutls 2.8.6 gnutls_prf_raw(3)
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