Ubuntu
gnutls28 package

  1. Bug #1707172
  2. Comment #6

Comment 6 for bug 1707172

Revision history for this message
Ard Biesheuvel (ard-biesheuvel) wrote : Re: [Bug 1707172] Re: AES256-GCM emits all-zeros ciphertext on aarch64 with hardware acceleration

On 1 September 2017 at 14:32, Julian Andres Klode
<email address hidden> wrote:
> Ah, https://gitlab.com/gnutls/gnutls/issues/204 has more details.
>
> ** Description changed:
>
> + [Impact]
> + AES256-GCM ciphertext is all zero on arm64 with hardware acceleration, breaking gnome-terminal and xfce4-terminal which use encrypted scrollback buffers.
> +
> + [Test case]
> + Compile the program from https://gitlab.com/gnutls/gnutls/issues/204 and make sure the cipher text is not all zeros
> +

Yeah, this is the one I was referring to.