Re: Re: AW: problem with testing a CTR block cipher mode which is partially working

[Corentin LABBE <clabbe.montjoie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

On 04/02/15 04:10, kevin.z.m.zh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
>> Thanks for your answer, I have loose hours on that problem.
> I'm sorry to hear that.
>  
>> Perhaps you could update all datasheet/user manual about this known issue ?
> We have updated the user manual and datasheet, the latest version is 1.3 for 
> A20 which is released in Oct. 2014. The CTR block mode is not support.
> You can download it from the github: https://github.com/allwinner-zh/documents 
> and check the details of the SS moudle.

Sorry, I believed to have the latest user manual.

Great thanks for the information.

Regards

> 
> Best Regards,
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
> kevin.z.m.zh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
> 
>      
>     *From:* Corentin LABBE <mailto:clabbe.montjoie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>     *Date:* 2015-04-01 19:16
>     *To:* linux-sunxi <mailto:linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>; linux-crypto@vger.kernel.org <mailto:linux-crypto-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
>     *Subject:* Re: [linux-sunxi] Re: AW: problem with testing a CTR block cipher mode which is partially working
>     On 04/01/15 04:06, kevin.z.m.zh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
>     > Dear All,
>     >
>     >
>     > About the SS module, there is some detail information.
>     > There is some issues on the SS hardware module, the issues make the some
>     > AES/DES/3DS algorithm be not available.
>     > 1. The byte order of the counter is wrong, make the result error, so, the CTR
>     > mode is not available.
>     > 2. Hardware don't support the continuous subcontracting, make the CTS mode is
>     > not available.
>     > 3. Another issue need be taken attention is that hardware will modify the key
>     > register when do AES encrypt, so, it need software to restore the key register
>     >
>     > when doing every frame.
>     >
>     > These issues are presented on the A10, A13, A20, A31 and A33.
>     > The issues of SS module have been fixed on the A83T platform, so, I suggest to
>     > take more attention to the A83T platform if any interest in the SS module.
>     >
>     > If any problem, please don't hesitate to contact me(kevin@allwinnertech.com)
>     >
>     > or Shuge(shuge-0TFLnhJekD6UEPyfVivIlAC/G2K4zDHf@public.gmane.org).
>     >
>      
>     Thanks for your answer, I have loose hours on that problem.
>      
>     Perhaps you could update all datasheet/user manual about this known issue ?
>      
>     Regards
>      
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