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Revert "crypto: arm64/sha2 - add generated .S files to .gitignore"
This reverts commit 9345ccbf273209e3946c3981122d068221a135d2.
Revert "crypto: arm64/sha2 - integrate OpenSSL implementations of SHA256/SHA512"
This reverts commit 02ea19edc643061fab3b6ea8bd54b96110a9f43b.
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This is a straight port to arm64/NEON of the x86 SSE3 implementation
of the ChaCha20 stream cipher. It uses the new skcipher walksize
attribute to process the input in strides of 4x the block size.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
backported to 3.10 the same way arm chacha20 SNEON3 imp. for 3.18 was
done : https://android-review.googlesource.com/c/kernel/common/+/551349
Signed-off-by: Mister Oyster <oysterized@gmail.com>
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This patch implements the AES key schedule generation using ARMv8
Crypto Instructions. It replaces the table based C implementation
in aes_generic.ko, which means we can drop the dependency on that
module.
Tested-by: Steve Capper <steve.capper@linaro.org>
Acked-by: Steve Capper <steve.capper@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
(cherry picked from commit 12ac3efe74f888a13cb4df88b38bb01e8034dea8)
Change-Id: I48488f43e280c4de8256365eb0be40d7be26d418
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This module registers a crc32 algorithm and a crc32c algorithm
that use the optional CRC32 and CRC32C instructions in ARMv8.
Tested on AMD Seattle.
Improvement compared to crc32c-generic algorithm:
TCRYPT CRC32C speed test shows ~450% speedup.
Simple dd write tests to btrfs filesystem show ~30% speedup.
Signed-off-by: Yazen Ghannam <yazen.ghannam@linaro.org>
Acked-by: Steve Capper <steve.capper@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This integrates both the accelerated scalar and the NEON implementations
of SHA-224/256 as well as SHA-384/512 from the OpenSSL project.
Relative performance compared to the respective generic C versions:
| SHA256-scalar | SHA256-NEON* | SHA512 |
------------+-----------------+--------------+----------+
Cortex-A53 | 1.63x | 1.63x | 2.34x |
Cortex-A57 | 1.43x | 1.59x | 1.95x |
Cortex-A73 | 1.26x | 1.56x | ? |
The core crypto code was authored by Andy Polyakov of the OpenSSL
project, in collaboration with whom the upstream code was adapted so
that this module can be built from the same version of sha512-armv8.pl.
The version in this patch was taken from OpenSSL commit 32bbb62ea634
("sha/asm/sha512-armv8.pl: fix big-endian support in __KERNEL__ case.")
* The core SHA algorithm is fundamentally sequential, but there is a
secondary transformation involved, called the schedule update, which
can be performed independently. The NEON version of SHA-224/SHA-256
only implements this part of the algorithm using NEON instructions,
the sequential part is always done using scalar instructions.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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