> On Aug 29, 2016, at 6:26 AM, Rene Struik <[email protected]> wrote:
>
> I think it is a mistake to think that simply using block ciphers with a
> larger block size is enough to counter attacks, as the literature on
> successful side channel attacks on such block cipher demonstrates. The real
> message is that one should not reuse keys ad infinitum, which unfortunately
> seems hard to sink in.
>
> Singling out 3-DES in this respect does not seem to tackle the real issue
> (which is a system security issue often only paid lip service to in practice).
Yes, we should just stop using 64-bit block ciphers and deal with the issues
you mention within the context of larger blocks.
Jon
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