table of contents
gnutls_hkdf_expand(3) | gnutls | gnutls_hkdf_expand(3) |
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 <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
3.6.16 | gnutls |