fn seal_separate()

in aws-lc-rs/src/aead/unbound_key.rs [398:432]

• 33 lines of code
• 2 McCabe index (conditional complexity)

    fn seal_separate(
        &self,
        nonce: Nonce,
        aad: &[u8],
        in_out: &mut [u8],
    ) -> Result<(Nonce, Tag), Unspecified> {
        let mut tag = [0u8; MAX_TAG_LEN];
        let mut out_tag_len = MaybeUninit::<usize>::uninit();
        {
            let nonce = nonce.as_ref();

            debug_assert_eq!(nonce.len(), self.algorithm().nonce_len());

            if 1 != indicator_check!(unsafe {
                EVP_AEAD_CTX_seal_scatter(
                    *self.ctx.as_ref().as_const(),
                    in_out.as_mut_ptr(),
                    tag.as_mut_ptr(),
                    out_tag_len.as_mut_ptr(),
                    tag.len(),
                    nonce.as_ptr(),
                    nonce.len(),
                    in_out.as_ptr(),
                    in_out.len(),
                    null(),
                    0usize,
                    aad.as_ptr(),
                    aad.len(),
                )
            }) {
                return Err(Unspecified);
            }
        }
        Ok((nonce, Tag(tag, unsafe { out_tag_len.assume_init() })))
    }