crypto: arm64/sm4 - simplify sm4_ce_expand_key() of CE implementation

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Use a 128-bit swap mask and tbl instruction to simplify the implementation
for generating SM4 rkey_dec.

Also fixed the issue of not being wrapped by kernel_neon_begin/end() when
using the sm4_ce_expand_key() function.

Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Tianjia Zhang 2022-10-27 14:54:59 +08:00 • committed by Herbert Xu

parent ce41fefd24

commit cb9ba02b07

2 changed files with 24 additions and 24 deletions

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46

arch/arm64/crypto/sm4-ce-core.S

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2

arch/arm64/crypto/sm4-ce-glue.c

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