Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
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_SHA256
7 select CRYPTO_LIB_SHA512
8 select KEYS
9 help
10 Enable encryption of files and directories. This
11 feature is similar to ecryptfs, but it is more memory
12 efficient since it avoids caching the encrypted and
13 decrypted pages in the page cache. Currently Ext4,
14 F2FS, UBIFS, and CephFS make use of this feature.
15
16# Filesystems supporting encryption must select this if FS_ENCRYPTION. This
17# allows the algorithms to be built as modules when all the filesystems are,
18# whereas selecting them from FS_ENCRYPTION would force them to be built-in.
19#
20# Note: this option only pulls in the algorithms that filesystem encryption
21# needs "by default". If userspace will use "non-default" encryption modes such
22# as Adiantum encryption, then those other modes need to be explicitly enabled
23# in the crypto API; see Documentation/filesystems/fscrypt.rst for details.
24#
25# Also note that this option only pulls in the generic implementations of the
26# algorithms, not any per-architecture optimized implementations. It is
27# strongly recommended to enable optimized implementations too.
28config FS_ENCRYPTION_ALGS
29 tristate
30 select CRYPTO_AES
31 select CRYPTO_CBC
32 select CRYPTO_CTS
33 select CRYPTO_ECB
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.