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SubjectRe: [PATCH RFC v1 1/3] bpf: move from sha1 to blake2s in tag calculation
On Fri, Jan 14, 2022 at 5:19 PM Alexei Starovoitov
<alexei.starovoitov@gmail.com> wrote:
>
> On Fri, Jan 14, 2022 at 7:08 AM Ard Biesheuvel <ardb@kernel.org> wrote:
> >
> > Yeah, so the issue is that, at *some* point, SHA-1 is going to have to
> > go.
>
> sha1 cannot be removed from the kernel.
> See AF_ALG and iproute2 source for reference.

It can be removed from vmlinux, and be folded into the crypto API's
generic implementation where it belongs, which then can be built as a
module or not built at all, depending on configuration. Please see the
3/3 patch in this series to see what that looks like:
https://lore.kernel.org/lkml/20220114142015.87974-4-Jason@zx2c4.com/

Meanwhile, you have not replied to any of the substantive issues I
brought up. I'd appreciate you doing so.

Thank you,
Jason

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