1config FS_ENCRYPTION
 2	tristate "FS Encryption (Per-file encryption)"
 3	select CRYPTO
 4	select CRYPTO_AES
 5	select CRYPTO_CBC
 6	select CRYPTO_ECB
 7	select CRYPTO_XTS
 8	select CRYPTO_CTS
 9	select CRYPTO_CTR
10	select CRYPTO_SHA256
11	select KEYS
12	help
13	  Enable encryption of files and directories.  This
14	  feature is similar to ecryptfs, but it is more memory
15	  efficient since it avoids caching the encrypted and
16	  decrypted pages in the page cache.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 1# SPDX-License-Identifier: GPL-2.0-only
 2config FS_ENCRYPTION
 3	bool "FS Encryption (Per-file encryption)"
 4	select CRYPTO
 5	select CRYPTO_HASH
 6	select CRYPTO_SKCIPHER
 7	select CRYPTO_LIB_SHA256
 
 
 
 
 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.  It is safe to
28# disable these generic implementations if corresponding optimized
29# implementations will always be available too; for this reason, these are soft
30# dependencies ('imply' rather than 'select').  Only disable these generic
31# implementations if you're sure they will never be needed, though.
32config FS_ENCRYPTION_ALGS
33	tristate
34	imply CRYPTO_AES
35	imply CRYPTO_CBC
36	imply CRYPTO_CTS
37	imply CRYPTO_ECB
38	imply CRYPTO_HMAC
39	imply CRYPTO_SHA512
40	imply CRYPTO_XTS
41
42config FS_ENCRYPTION_INLINE_CRYPT
43	bool "Enable fscrypt to use inline crypto"
44	depends on FS_ENCRYPTION && BLK_INLINE_ENCRYPTION
45	help
46	  Enable fscrypt to use inline encryption hardware if available.