[Cryptography] Shortening block cipher length...

[Phillip Hallam-Baker]

On Thu, Jul 8, 2021 at 12:24 AM Sampo Syreeni <decoy at iki.fi> wrote:

> On 2021-03-29, Peter Gutmann wrote:
>
> >> For that matter, what's wrong with Counter Mode?
> >
> > It turns any strong block cipher into the functional equivalent of
> > RC4. So what you're saying there is "what's wrong with RC4"?
>
> Functional equilent of RC4, isn't the same as RC4, as a bad cipher.
>
> If you substitute a better cipher for RC4 in said construction,
> suddently it can become secure as fuck.
>

I read 'functional equivalent of RC4' as being a stream cipher.

This application absolutely cannot accept a stream cipher.
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