Messages in this thread | | | Date | Wed, 12 Aug 2020 10:36:32 +1000 | From | Herbert Xu <> | Subject | Re: [PATCH 19/22] crypto: inside-secure - add check for xts input length equal to zero |
| |
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@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
| |