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authorTianjia Zhang <tianjia.zhang@linux.alibaba.com>2021-07-20 11:46:39 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2021-07-30 10:58:30 +0800
commit2b31277af577b1b2da62c3ad7d3315b422869102 (patch)
tree198253c3073b746bd7e3e0921d8e16647695bff5 /crypto/Kconfig
parent821720b9f34ec54106ebf012a712ba73bbcf47c2 (diff)
downloadlinux-2b31277af577b1b2da62c3ad7d3315b422869102.tar.bz2
crypto: sm4 - create SM4 library based on sm4 generic code
Take the existing small footprint and mostly time invariant C code and turn it into a SM4 library that can be used for non-performance critical, casual use of SM4, and as a fallback for, e.g., SIMD code that needs a secondary path that can be taken in contexts where the SIMD unit is off limits. Secondly, some codes have been optimized, such as unrolling small times loop, removing unnecessary memory shifts, exporting sbox, fk, ck arrays, and basic encryption and decryption functions. Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/Kconfig')
-rw-r--r--crypto/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 64b772c5d1c9..5bf86f5d59db 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1547,6 +1547,7 @@ config CRYPTO_SERPENT_AVX2_X86_64
config CRYPTO_SM4
tristate "SM4 cipher algorithm"
select CRYPTO_ALGAPI
+ select CRYPTO_LIB_SM4
help
SM4 cipher algorithms (OSCCA GB/T 32907-2016).