NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURNS | SINCE | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON
gnutls_hkdf_expand(3) gnutls gnutls_hkdf_expand(3)
gnutls_hkdf_expand - API function
#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);
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
This function will derive a variable length keying material from the pseudorandom key using the HKDF-Expand function as defined in RFC 5869.
Zero or a negative error code on error.
Report bugs to <firstname.lastname@example.org>. Home page: https://www.gnutls.org
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