RFR: 8267125: AES Galois CounterMode (GCM) interleaved implementation using AVX512 + VAES instructions [v7]

[Valerie Peng]

On Wed, 4 Aug 2021 02:24:05 GMT, Smita Kamath <svkamath at openjdk.org> wrote:

>> I would like to submit AES-GCM optimization for x86_64 architectures supporting AVX3+VAES (Evex encoded AES). This optimization interleaves AES and GHASH operations.
>> Performance gain of ~1.5x - 2x for message sizes 8k and above.
>
> Smita Kamath has updated the pull request incrementally with five additional commits since the last revision:
> 
>  - Merge branch 'aes-gcm' of github.com:smita-kamath/jdk into aes-gcm
>  - Updates, comment and variable cleanup
>  - merge rest
>  - merge
>  - fixes and code comments

src/java.base/share/classes/com/sun/crypto/provider/GaloisCounterMode.java line 1608:

> 1606:                 int bufRemainder = bLen - len;
> 1607:                 if (bufRemainder >= blockSize) {
> 1608:                     resultLen = op.update(buffer, len, bufRemainder, out, outOfs);

nit: exceeds 80 chars

src/java.base/share/classes/com/sun/crypto/provider/GaloisCounterMode.java line 1721:

> 1719: 
> 1720:             if (inLen >= PARALLEL_LEN) {
> 1721:                 len = implGCMCrypt(in, inOfs, inLen, out, outOfs, out, outOfs, gctr, ghash);

nit: exceeds 80 chars

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PR: https://git.openjdk.java.net/jdk/pull/4019