gnutls_hkdf_expand - Online Linux Manual PageSection : 3
Updated : 3.7.3
Source : gnutls
Note : gnutls

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NAMEgnutls_hkdf_expand − API function

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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);

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ARGUMENTSgnutls_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

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

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RETURNSZero or a negative error code on error.

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SINCE3.6.13

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REPORTING BUGSReport bugs to <bugs@gnutls.org>.
Home page: https://www.gnutls.org

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COPYRIGHTCopyright © 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.

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SEE ALSOThe 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/  0

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