1 # SPDX-License-Identifier: GPL-2.0-only 1 # SPDX-License-Identifier: GPL-2.0-only
2 config FS_ENCRYPTION 2 config FS_ENCRYPTION
3 bool "FS Encryption (Per-file encrypti 3 bool "FS Encryption (Per-file encryption)"
4 select CRYPTO 4 select CRYPTO
5 select CRYPTO_HASH 5 select CRYPTO_HASH
6 select CRYPTO_SKCIPHER 6 select CRYPTO_SKCIPHER
7 select CRYPTO_LIB_SHA256 <<
8 select KEYS 7 select KEYS
9 help 8 help
10 Enable encryption of files and direc 9 Enable encryption of files and directories. This
11 feature is similar to ecryptfs, but 10 feature is similar to ecryptfs, but it is more memory
12 efficient since it avoids caching th 11 efficient since it avoids caching the encrypted and
13 decrypted pages in the page cache. 12 decrypted pages in the page cache. Currently Ext4,
14 F2FS, UBIFS, and CephFS make use of !! 13 F2FS and UBIFS make use of this feature.
15 14
16 # Filesystems supporting encryption must selec 15 # Filesystems supporting encryption must select this if FS_ENCRYPTION. This
17 # allows the algorithms to be built as modules !! 16 # allows the algorithms to be built as modules when all the filesystems are.
18 # whereas selecting them from FS_ENCRYPTION wo <<
19 # <<
20 # Note: this option only pulls in the algorith <<
21 # needs "by default". If userspace will use " <<
22 # as Adiantum encryption, then those other mod <<
23 # in the crypto API; see Documentation/filesys <<
24 # <<
25 # Also note that this option only pulls in the <<
26 # algorithms, not any per-architecture optimiz <<
27 # strongly recommended to enable optimized imp <<
28 # disable these generic implementations if cor <<
29 # implementations will always be available too <<
30 # dependencies ('imply' rather than 'select'). <<
31 # implementations if you're sure they will nev <<
32 config FS_ENCRYPTION_ALGS 17 config FS_ENCRYPTION_ALGS
33 tristate 18 tristate
34 imply CRYPTO_AES !! 19 select CRYPTO_AES
35 imply CRYPTO_CBC !! 20 select CRYPTO_CBC
36 imply CRYPTO_CTS !! 21 select CRYPTO_CTS
37 imply CRYPTO_ECB !! 22 select CRYPTO_ECB
38 imply CRYPTO_HMAC !! 23 select CRYPTO_HMAC
39 imply CRYPTO_SHA512 !! 24 select CRYPTO_SHA256
40 imply CRYPTO_XTS !! 25 select CRYPTO_SHA512
41 !! 26 select CRYPTO_XTS
42 config FS_ENCRYPTION_INLINE_CRYPT <<
43 bool "Enable fscrypt to use inline cry <<
44 depends on FS_ENCRYPTION && BLK_INLINE <<
45 help <<
46 Enable fscrypt to use inline encrypt <<
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