Messages in this thread Patch in this message | | | From | Tianjia Zhang <> | Subject | [PATCH v2 1/2] blk-crypto: Add support for SM4-XTS blk crypto mode | Date | Tue, 22 Nov 2022 15:06:31 +0800 |
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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> --- block/blk-crypto.c | 6 ++++++ include/linux/blk-crypto.h | 1 + 2 files changed, 7 insertions(+)
diff --git a/block/blk-crypto.c b/block/blk-crypto.c index a496aaef85ba..e44709fc6a08 100644 --- a/block/blk-crypto.c +++ b/block/blk-crypto.c @@ -36,6 +36,12 @@ const struct blk_crypto_mode blk_crypto_modes[] = { .keysize = 32, .ivsize = 32, }, + [BLK_ENCRYPTION_MODE_SM4_XTS] = { + .name = "SM4-XTS", + .cipher_str = "xts(sm4)", + .keysize = 32, + .ivsize = 16, + }, }; /* diff --git a/include/linux/blk-crypto.h b/include/linux/blk-crypto.h index 69b24fe92cbf..26b1b71c3091 100644 --- a/include/linux/blk-crypto.h +++ b/include/linux/blk-crypto.h @@ -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, }; -- 2.24.3 (Apple Git-128)
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