Re: crypto ahash error handling

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Dmitry Kasatkin <dmitry.kasatkin@xxxxxxxxx> wrote:
> Hello,
> 
> When using crypto ahash API, is it necessary/mandatory to call
> crypto_ahash_final() if crypto_ahash_update() returns error...
> 
> Basically it might happen after several calls while calculating hash if
> HW error happens.
> It is not possible to continue hash calculation. it is necessary to
> reset HW and start whole hash again..
> 
> Any comments?

>From the driver's perspective you cannot expect that the user
will call crypto_ahash_final in this case, or for that matter in
any other case as the user is always free to leave a hash in
an unfinalised state.

Cheers,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
To unsubscribe from this list: send the line "unsubscribe linux-crypto" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Kernel]     [Gnu Classpath]     [Gnu Crypto]     [DM Crypt]     [Netfilter]     [Bugtraq]

  Powered by Linux