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gnutls_hkdf_extract(3)              gnutls              gnutls_hkdf_extract(3)

NAME

gnutls_hkdf_extract - API function

SYNOPSIS

#include <gnutls/crypto.h> int gnutls_hkdf_extract(gnutls_mac_algorithm_t mac, const gnutls_datum_t * key, const gnutls_datum_t * salt, void * output);

ARGUMENTS

gnutls_mac_algorithm_t mac the mac algorithm used internally const gnutls_datum_t * key the initial keying material const gnutls_datum_t * salt the optional salt void * output the output value of the extract operation

DESCRIPTION

This function will derive a fixed-size key using the HKDF-Extract 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 (C) 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/local/share/doc/gnutls/ directory does not contain the HTML form visit https://www.gnutls.org/manual/ gnutls 3.7.9 gnutls_hkdf_extract(3)

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