[PATCH 19/22] crypto: inside-secure - add check for xts input length equal to zero

[Herbert Xu]

On Tue, Aug 11, 2020 at 06:28:39PM +0300, Horia Geantă wrote:
>
> What about, for example, CBC?
> AFAICT cbc(aes) with input length = 0 is valid.

That's just because CBC accepts any input which is a multiple
of blocksize.

> Same for CTR (with the note that blocksize = 1) and several other algorithms
> mentioned in the cover letter.

CTR accepts any input size.

> What's the rule in these cases?

What input size is accepted depends on the algorithm.

Cheers,
-- 
Email: Herbert Xu <herbert at gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
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