Function libgcrypt_sys::gcry_kdf_derive

pub unsafe extern fn gcry_kdf_derive(passphrase: *const c_void,
                                     passphraselen: size_t,
                                     algo: c_int,
                                     subalgo: c_int,
                                     salt: *const c_void,
                                     saltlen: size_t,
                                     iterations: c_ulong,
                                     keysize: size_t,
                                     keybuffer: *mut c_void)
                                     -> gcry_error_t