Implement '_mm_aesenc_si128' support. #6
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…on't have crypto extensions. Based with permission on implementation by Ard Biesheuvel. See pull request DLTcollab/sse2neon#6 for more information.
mjmacleod
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…on't have crypto extensions. Based with permission on implementation by Ard Biesheuvel. See pull request DLTcollab/sse2neon#6 for more information.
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@mjmacleod, Thanks for contribution! Can you please run |
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Thank @mjmacleod and @ardbiesheuvel for the great work! |
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This pull request implements _mm_aesenc_si128 using the armv8 crypto extensions (where available) and a neon based vectorised aes round when crypto extensions are not available.
The vectorised neon version is based on an implementation by @ardbiesheuvel (which is used in the kernel for aegis and also talked about in several articles http://www.workofard.com/2017/01/accelerated-aes-for-the-arm64-linux-kernel/ http://www.workofard.com/2017/07/ghash-for-low-end-cores/
I've reproduced it with his permission and made slight modifications to make it fit in with sse2neon, along with implementing a basic test. I've tagged @ardbiesheuvel so that he can confirm that it is okay for it to enter this project under MIT license.