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+.\" DO NOT MODIFY THIS FILE! It was generated by gdoc.
+.TH "gnutls_hmac_init" 3 "3.7.9" "gnutls" "gnutls"
+.SH NAME
+gnutls_hmac_init \- API function
+.SH SYNOPSIS
+.B #include <gnutls/crypto.h>
+.sp
+.BI "int gnutls_hmac_init(gnutls_hmac_hd_t * " dig ", gnutls_mac_algorithm_t " algorithm ", const void * " key ", size_t " keylen ");"
+.SH ARGUMENTS
+.IP "gnutls_hmac_hd_t * dig" 12
+is a \fBgnutls_hmac_hd_t\fP type
+.IP "gnutls_mac_algorithm_t algorithm" 12
+the HMAC algorithm to use
+.IP "const void * key" 12
+the key to be used for encryption
+.IP "size_t keylen" 12
+the length of the key
+.SH "DESCRIPTION"
+This function will initialize an context that can be used to
+produce a Message Authentication Code (MAC) of data. This will
+effectively use the current crypto backend in use by gnutls or the
+cryptographic accelerator in use.
+
+Note that despite the name of this function, it can be used
+for other MAC algorithms than HMAC.
+.SH "RETURNS"
+Zero or a negative error code on error.
+.SH "SINCE"
+2.10.0
+.SH "REPORTING BUGS"
+Report bugs to <bugs@gnutls.org>.
+.br
+Home page: https://www.gnutls.org
+
+.SH COPYRIGHT
+Copyright \(co 2001- Free Software Foundation, Inc., and others.
+.br
+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.
+.SH "SEE ALSO"
+The full documentation for
+.B gnutls
+is maintained as a Texinfo manual.
+If the /usr/share/doc/gnutls/
+directory does not contain the HTML form visit
+.B
+.IP https://www.gnutls.org/manual/
+.PP