Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: GPL-2.0-only
2config FS_ENCRYPTION
3 bool "FS Encryption (Per-file encryption)"
4 select CRYPTO
5 select CRYPTO_SKCIPHER
6 select CRYPTO_LIB_AES
7 select CRYPTO_LIB_SHA256
8 select CRYPTO_LIB_SHA512
9 select KEYS
10 help
11 Enable encryption of files and directories. This
12 feature is similar to ecryptfs, but it is more memory
13 efficient since it avoids caching the encrypted and
14 decrypted pages in the page cache. Currently Ext4,
15 F2FS, UBIFS, and CephFS make use of this feature.
16
17# Filesystems supporting encryption must select this if FS_ENCRYPTION. This
18# allows the algorithms to be built as modules when all the filesystems are,
19# whereas selecting them from FS_ENCRYPTION would force them to be built-in.
20#
21# Note: this option only pulls in the algorithms that filesystem encryption
22# needs "by default". If userspace will use "non-default" encryption modes such
23# as Adiantum encryption, then those other modes need to be explicitly enabled
24# in the crypto API; see Documentation/filesystems/fscrypt.rst for details.
25#
26# Also note that this option only pulls in the generic implementations of the
27# algorithms, not any per-architecture optimized implementations. It is
28# strongly recommended to enable optimized implementations too.
29config FS_ENCRYPTION_ALGS
30 tristate
31 select CRYPTO_AES
32 select CRYPTO_CBC
33 select CRYPTO_CTS
34 select CRYPTO_XTS
35
36config FS_ENCRYPTION_INLINE_CRYPT
37 bool "Enable fscrypt to use inline crypto"
38 depends on FS_ENCRYPTION && BLK_INLINE_ENCRYPTION
39 help
40 Enable fscrypt to use inline encryption hardware if available.