Re: [PATCH v3 2/2] fscrypt: Add SM4 XTS/CTS symmetric algorithm support

[Bagas Sanjaya <bagasdotme@xxxxxxxxx>]

On 11/25/22 19:16, Tianjia Zhang wrote:
> SM4 is a symmetric algorithm widely used in China, and is even mandatory
> in many scenarios. We need to provide these users with the ability to
> encrypt files or disks using SM4-XTS, and many other algorithms that use
> SM2/3/4 algorithms or their combined algorithm scenarios, these features
> are demanded by many users, this patch enables to use SM4-XTS mode to
> encrypt file content, and use SM4-CBC-CTS to encrypt filename.
> 

Similar reply as [1]. That is, better say:

```
Add support for XTS and CTS mode variant of SM4 algorithm, in similar
fashion to SM2 and SM3. The former is used to encrypt file contents, while
the latter (SM4-CBC-CTS) is used to encrypt filenames. 
```

Thanks.

[1]: https://lore.kernel.org/linux-doc/42624542-6ccb-26a5-db98-d7944972246e@xxxxxxxxx/

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