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@deftypefun {int} {gnutls_cipher_init} (gnutls_cipher_hd_t * @var{handle}, gnutls_cipher_algorithm_t @var{cipher}, const gnutls_datum_t * @var{key}, const gnutls_datum_t * @var{iv})
@var{handle}: is a @code{gnutls_cipher_hd_t} type
@var{cipher}: the encryption algorithm to use
@var{key}: the key to be used for encryption/decryption
@var{iv}: the IV to use (if not applicable set NULL)
This function will initialize the @code{handle} context to be usable
for encryption/decryption 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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