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gnutls_hkdf_expand - API function
Contents
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
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.
Description
This function will derive a variable length keying material from the pseudorandom key using the
HKDF-Expand function as defined in RFC 5869.
Name
gnutls_hkdf_expand - API function
Reporting Bugs
Report bugs to <bugs@gnutls.org>.
Home page: https://www.gnutls.org
Returns
Zero or a negative error code on error.
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/
gnutls 3.8.9 gnutls_hkdf_expand(3)
Since
3.6.13
Synopsis
#include<gnutls/crypto.h>intgnutls_hkdf_expand(gnutls_mac_algorithm_tmac,constgnutls_datum_t*key,constgnutls_datum_t*info,void*output,size_tlength);
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