A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-05 19:31:57 -04:00
Code Issues Projects Releases Packages Wiki Activity

UPSTREAM: crypto: mips/chacha - wire up accelerated 32r2 code from Zinc

Browse source 
This integrates the accelerated MIPS 32r2 implementation of ChaCha
into both the API and library interfaces of the kernel crypto stack.

The significance of this is that, in addition to becoming available
as an accelerated library implementation, it can also be used by
existing crypto API code such as Adiantum (for block encryption on
ultra low performance cores) or IPsec using chacha20poly1305. These
are use cases that have already opted into using the abstract crypto
API. In order to support Adiantum, the core assembler routine has
been adapted to take the round count as a function argument rather
than hardcoding it to 20.

Co-developed-by: René van Dorst <opensource@vdorst.com>
Signed-off-by: René van Dorst <opensource@vdorst.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
(cherry picked from commit 3a2f58f3ba4f6f44e33d1a48240d5eadb882cb59)
Bug: 152722841
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Change-Id: I149f8a7ad67ac124b0bb77ab7f98eb1455184080
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Ard Biesheuvel 2019-11-08 13:22:17 +01:00 • committed by Alexander Martinz
commit 6e6d588879
No known key found for this signature in database
GPG key ID: CF15BDD9A321A9B2
5 changed files with 277 additions and 44 deletions
Download patch file Download diff file Expand all files Collapse all files

6
crypto/Kconfig
View file

@ -1464,6 +1464,12 @@ config CRYPTO_CHACHA20_X86_64
SSSE3, AVX2, and AVX-512VL optimized implementations of the ChaCha20,
XChaCha20, and XChaCha12 stream ciphers.
config CRYPTO_CHACHA_MIPS
tristate "ChaCha stream cipher algorithms (MIPS 32r2 optimized)"
depends on CPU_MIPS32_R2
select CRYPTO_BLKCIPHER
select CRYPTO_ARCH_HAVE_LIB_CHACHA
config CRYPTO_SEED
tristate "SEED cipher algorithm"
select CRYPTO_ALGAPI