RFR(S) 8205398: AES-CBC decryption algorithm using AVX512 instructions

[Vladimir Kozlov]

Good. Let me test it.

Thanks,
Vladimir

On 6/20/18 3:49 PM, Kamath, Smita wrote:
> Hi Vladimir,
> 
> I ran all tests for AES-CBC in TestAESMain.java using SDE. The new code produced correct results.
> 
> Regards,
> Smita
> 
> 
> 
> -----Original Message-----
> From: Vladimir Kozlov [mailto:vladimir.kozlov at oracle.com]
> Sent: Wednesday, June 20, 2018 2:51 PM
> To: Kamath, Smita <smita.kamath at intel.com>
> Cc: Rukmannagari, Shravya <shravya.rukmannagari at intel.com>; hotspot compiler <hotspot-compiler-dev at openjdk.java.net>
> Subject: Re: RFR(S) 8205398: AES-CBC decryption algorithm using AVX512 instructions
> 
> Hi, Smita
> 
> Changes looks fine to me.
> 
> Can you run set of tests defined in
> test/hotspot/jtreg/compiler/codegen/aes/TestAESMain.java on Intel SDE to make sure new code produce correct result?
> 
> Thanks,
> Vladimir
> 
> On 6/20/18 1:50 PM, Kamath, Smita wrote:
>> Hi Vladimir,
>>
>> As per "Intel Architecture Instruction Set Extensions and Future
>> Features Programming Reference"  manual [1], vector aes decrypt
>> (vaesdec and vaesdeclast) instructions will be supported in future
>> Intel ISA. I have updated AES-CBC decryption algorithm to take
>> advantage of these instructions. Shravya(cc'ed) and I are
>> co-contributors. Shay Gueron and Regev Shemy (regev.shemy at intel.com
>> <mailto:regev.shemy at intel.com>) are the authors of the algorithm.
>>
>> I have tested  the algorithm with Intel SDE [2] to confirm encoding
>> and semantics are correctly implemented.
>>
>> Please take a look and let me know if you have any questions or comments.
>>
>> http://cr.openjdk.java.net/~vdeshpande/AES_CBC_AVX512/webrev.00/
>>
>> [1]
>> https://software.intel.com/sites/default/files/managed/c5/15/architect
>> ure-instruction-set-extensions-programming-reference.pdf
>>
>> [2]
>> https://software.intel.com/en-us/articles/intel-software-development-e
>> mulator
>>
>>
>> [3] https://bugs.openjdk.java.net/browse/JDK-8205398
>>
>> Thanks,
>>
>> Smita
>>