gnutls_hkdf_expand - API function

NAME  SYNOPSIS  ARGUMENTS  DESCRIPTION  RETURNS  SINCE  REPORTING BUGS  COPYRIGHT  SEE ALSO 

---

NAME

gnutls_hkdf_expand − API function

SYNOPSIS

#include <gnutls/crypto.h>

int gnutls_hkdf_expand(gnutls_mac_algorithm_t mac, const gnutls_datum_t * key, const gnutls_datum_t * info, void * output, size_t length);

ARGUMENTS

gnutls_mac_algorithm_t mac

the mac algorithm used internally

const gnutls_datum_t * key

the pseudorandom key created with HKDF−Extract

const gnutls_datum_t * info

the optional informational data

void * output

the output value of the expand operation

size_t length

the desired length of the output key

DESCRIPTION

This function will derive a variable length keying material from the pseudorandom key using the HKDF−Expand function as defined in RFC 5869.

RETURNS

Zero or a negative error code on error.

SINCE

3.6.13

REPORTING BUGS

Report bugs to <[email protected]>.
Home page: https://www.gnutls.org

COPYRIGHT

Copyright © 2001-2023 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/

---