pub unsafe extern "C" fn ocb_encrypt_authenticate_memory(
cipher: c_int,
key: *const c_uchar,
keylen: c_ulong,
nonce: *const c_uchar,
pt: *const c_uchar,
ptlen: c_ulong,
ct: *mut c_uchar,
tag: *mut c_uchar,
taglen: *mut c_ulong,
) -> c_int