gnutls_hkdf_expand - Man Page
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 © 2001-2023 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