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authorTianjia Zhang <tianjia.zhang@linux.alibaba.com>2022-03-15 17:44:51 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2022-04-08 16:12:46 +0800
commit73c919d314ad57be900437fd329990b1d846b763 (patch)
tree60e59a08cfe9cc16cefa245a8f3c0cd0af54bfdb /crypto/sm4.c
parentd2825fa9365d0101571ed16534b16b7c8d261ab3 (diff)
downloadlwn-73c919d314ad57be900437fd329990b1d846b763.tar.gz
lwn-73c919d314ad57be900437fd329990b1d846b763.zip
crypto: sm4 - export sm4 constant arrays
Export the constant arrays fk, ck, sbox of the SM4 algorithm, and add the 'crypto_sm4_' prefix, where sbox is used in the SM4 NEON implementation for the tbl/tbx instruction to replace the S-BOX, and the fk, ck arrays are used in the SM4 CE implementation. Use the sm4ekey instruction to speed up key expansion operations. Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/sm4.c')
-rw-r--r--crypto/sm4.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/crypto/sm4.c b/crypto/sm4.c
index 284e62576d0c..2c44193bc27e 100644
--- a/crypto/sm4.c
+++ b/crypto/sm4.c
@@ -11,7 +11,7 @@
#include <asm/unaligned.h>
#include <crypto/sm4.h>
-static const u32 fk[4] = {
+static const u32 ____cacheline_aligned fk[4] = {
0xa3b1bac6, 0x56aa3350, 0x677d9197, 0xb27022dc
};
@@ -61,6 +61,14 @@ static const u8 ____cacheline_aligned sbox[256] = {
0x79, 0xee, 0x5f, 0x3e, 0xd7, 0xcb, 0x39, 0x48
};
+extern const u32 crypto_sm4_fk[4] __alias(fk);
+extern const u32 crypto_sm4_ck[32] __alias(ck);
+extern const u8 crypto_sm4_sbox[256] __alias(sbox);
+
+EXPORT_SYMBOL(crypto_sm4_fk);
+EXPORT_SYMBOL(crypto_sm4_ck);
+EXPORT_SYMBOL(crypto_sm4_sbox);
+
static inline u32 sm4_t_non_lin_sub(u32 x)
{
u32 out;