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anolis: blk-crypto: Add support for SM4-XTS blk crypto mode 

ANBZ: #3240

SM4 is a symmetric algorithm widely used in China, and SM4-XTS is also
used to encrypt length-preserving data, this patch enables the use of
SM4-XTS algorithm in block inline encryption, and provides support for
fscrypt.

Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Acked-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Link: https://gitee.com/anolis/cloud-kernel/pulls/895
This commit is contained in:
Tianjia Zhang 2022-11-15 14:43:27 +08:00 committed by 小龙
parent b3c1eb7288
commit 731ea68c98
2 changed files with 6 additions and 0 deletions
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5
block/blk-crypto.c
View File

@ -33,6 +33,11 @@ const struct blk_crypto_mode blk_crypto_modes[] = {
.keysize = 32,
.ivsize = 32,
},
[BLK_ENCRYPTION_MODE_SM4_XTS] = {
.cipher_str = "xts(sm4)",
.keysize = 32,
.ivsize = 16,
},
};
/*

1
include/linux/blk-crypto.h
View File

@ -13,6 +13,7 @@ enum blk_crypto_mode_num {
BLK_ENCRYPTION_MODE_AES_256_XTS,
BLK_ENCRYPTION_MODE_AES_128_CBC_ESSIV,
BLK_ENCRYPTION_MODE_ADIANTUM,
BLK_ENCRYPTION_MODE_SM4_XTS,
BLK_ENCRYPTION_MODE_MAX,
};