[gnutls-devel] GnuTLS | cipher: add restriction on CCM tag length under FIPS mode (!1658)

[Read-only notification of GnuTLS library development activities]

Daiki Ueno commented on a discussion on lib/accelerated/aarch64/aes-ccm-aarch64.c: https://gitlab.com/gnutls/gnutls/-/merge_requests/1658#note_1147011706

>  	if (unlikely(encr_size < plain_size + tag_size))
>  		return gnutls_assert_val(GNUTLS_E_SHORT_MEMORY_BUFFER);
>  
> +	/* SP800-38C A.1 says Tlen must be a multiple of 16 between 32
> +	 * and 128, while B.2 says Tlen smaller than 64 should not be
> +	 * used under sufficient restriction.
> +	 */
> +	switch (tag_size) {
> +	case 4: case 6:

No, it's just an oversight; thanks for spotting this.

-- 
Reply to this email directly or view it on GitLab: https://gitlab.com/gnutls/gnutls/-/merge_requests/1658#note_1147011706
You're receiving this email because of your account on gitlab.com.


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.gnupg.org/pipermail/gnutls-devel/attachments/20221024/f634a2b1/attachment.html>