diff options
| author | Tianjia Zhang <tianjia.zhang@linux.alibaba.com> | 2022-12-01 20:58:19 +0800 |
|---|---|---|
| committer | Eric Biggers <ebiggers@google.com> | 2022-12-01 11:23:58 -0800 |
| commit | e0cefada1383c5ceb5a35f08369d0d40a6629c18 (patch) | |
| tree | 8f62b3504808567dfd86068872319457a42d226f /include/uapi | |
| parent | d209ce353a324601f9d3c1eee43b1f0df53021b3 (diff) | |
| download | linux-e0cefada1383c5ceb5a35f08369d0d40a6629c18.tar.bz2 | |
fscrypt: Add SM4 XTS/CTS symmetric algorithm support
Add support for XTS and CTS mode variant of SM4 algorithm. The former is
used to encrypt file contents, while the latter (SM4-CTS-CBC) is used to
encrypt filenames.
SM4 is a symmetric algorithm widely used in China, and is even mandatory
algorithm in some special scenarios. We need to provide these users with
the ability to encrypt files or disks using SM4-XTS.
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20221201125819.36932-3-tianjia.zhang@linux.alibaba.com
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/fscrypt.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/fscrypt.h b/include/uapi/linux/fscrypt.h index a756b29afcc2..47dbd1994bfe 100644 --- a/include/uapi/linux/fscrypt.h +++ b/include/uapi/linux/fscrypt.h @@ -26,6 +26,8 @@ #define FSCRYPT_MODE_AES_256_CTS 4 #define FSCRYPT_MODE_AES_128_CBC 5 #define FSCRYPT_MODE_AES_128_CTS 6 +#define FSCRYPT_MODE_SM4_XTS 7 +#define FSCRYPT_MODE_SM4_CTS 8 #define FSCRYPT_MODE_ADIANTUM 9 #define FSCRYPT_MODE_AES_256_HCTR2 10 /* If adding a mode number > 10, update FSCRYPT_MODE_MAX in fscrypt_private.h */ |