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@deftypefun {int} {gnutls_hash_init} (gnutls_hash_hd_t * @var{dig}, gnutls_digest_algorithm_t @var{algorithm})
@var{dig}: is a @code{gnutls_hash_hd_t} structure.
@var{algorithm}: the hash algorithm to use
This function will initialize an context that can be used to
produce a Message Digest of data. This will effectively use the
current crypto backend in use by gnutls or the cryptographic
accelerator in use.
@strong{Returns:} Zero or a negative error code on error.
@strong{Since:} 2.10.0
@end deftypefun
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