[PATCH] rijndael-aesni: use inline checksumming for OCB decryption

[Jussi Kivilinna]

On 30.5.2023 13.32, Werner Koch via Gcrypt-devel wrote:
> On Sun, 28 May 2023 17:53, Jussi Kivilinna said:
> 
>> Inline checksumming is far faster on Ryzen processors on i386
>> builds than two-pass checksumming.
> 
> That is indeed a large performance boost.  Did you had a chance to
> benchmark it on some common Intel CPU?
> 

I tested now with Intel tigerlake, performance dropped by 9% which is
unexpectedly large change. I'll try few different things to see if
I can avoid such drop.

-Jussi

> 
> Shalom-Salam,
> 
>     Werner
> 
> 
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