[PATCH v2 0/7] crypto: ARM/arm64 - AES and ChaCha20 updates for v4.11

Ard Biesheuvel ard.biesheuvel at linaro.org
Thu Jan 12 08:48:08 PST 2017

On 12 January 2017 at 16:45, Herbert Xu <herbert at gondor.apana.org.au> wrote:
> On Wed, Jan 11, 2017 at 04:41:48PM +0000, Ard Biesheuvel wrote:
>> This adds ARM and arm64 implementations of ChaCha20, scalar AES and SIMD
>> AES (using bit slicing). The SIMD algorithms in this series take advantage
>> of the new skcipher walksize attribute to iterate over the input in the most
>> efficient manner possible.
>> Patch #1 adds a NEON implementation of ChaCha20 for ARM.
>> Patch #2 adds a NEON implementation of ChaCha20 for arm64.
>> Patch #3 modifies the existing NEON and ARMv8 Crypto Extensions implementations
>> of AES-CTR to be available as a synchronous skcipher as well. This is intended
>> for the mac80211 code, which uses synchronous encapsulations of ctr(aes)
>> [ccm, gcm] in softirq context, during which arm64 supports use of SIMD code.
>> Patch #4 adds a scalar implementation of AES for arm64, using the key schedule
>> generation routines and lookup tables of the generic code in crypto/aes_generic.
>> Patch #5 does the same for ARM, replacing existing scalar code that originated
>> in the OpenSSL project, and contains redundant key schedule generation routines
>> and lookup tables (and is slightly slower on modern cores)
>> Patch #6 replaces the ARM bit sliced NEON code with a new implementation that
>> has a number of advantages over the original code (which also originated in the
>> OpenSSL project.) The performance should be identical.
>> Patch #7 adds a port of the ARM bit-sliced AES code to arm64, in ECB, CBC, CTR
>> and XTS modes.
>> Due to the size of patch #7, it may be difficult to apply these patches from
>> patchwork, so I pushed them here as well:
> It seems to have made it.
> All applied.  Thanks.

Actually, patch #6 was the huge one not #7, and I don't see it in your tree yet.


The order does not matter, though, so could you please put it on top? Thanks.


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