diff options
Diffstat (limited to 'fs/crypto/Kconfig')
| -rw-r--r-- | fs/crypto/Kconfig | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/fs/crypto/Kconfig b/fs/crypto/Kconfig new file mode 100644 index 000000000..2d0c8922f --- /dev/null +++ b/fs/crypto/Kconfig @@ -0,0 +1,46 @@ +# SPDX-License-Identifier: GPL-2.0-only +config FS_ENCRYPTION + bool "FS Encryption (Per-file encryption)" + select CRYPTO + select CRYPTO_HASH + select CRYPTO_SKCIPHER + select CRYPTO_LIB_SHA256 + select KEYS + help + Enable encryption of files and directories. This + feature is similar to ecryptfs, but it is more memory + efficient since it avoids caching the encrypted and + decrypted pages in the page cache. Currently Ext4, + F2FS and UBIFS make use of this feature. + +# Filesystems supporting encryption must select this if FS_ENCRYPTION. This +# allows the algorithms to be built as modules when all the filesystems are, +# whereas selecting them from FS_ENCRYPTION would force them to be built-in. +# +# Note: this option only pulls in the algorithms that filesystem encryption +# needs "by default". If userspace will use "non-default" encryption modes such +# as Adiantum encryption, then those other modes need to be explicitly enabled +# in the crypto API; see Documentation/filesystems/fscrypt.rst for details. +# +# Also note that this option only pulls in the generic implementations of the +# algorithms, not any per-architecture optimized implementations. It is +# strongly recommended to enable optimized implementations too. It is safe to +# disable these generic implementations if corresponding optimized +# implementations will always be available too; for this reason, these are soft +# dependencies ('imply' rather than 'select'). Only disable these generic +# implementations if you're sure they will never be needed, though. +config FS_ENCRYPTION_ALGS + tristate + imply CRYPTO_AES + imply CRYPTO_CBC + imply CRYPTO_CTS + imply CRYPTO_ECB + imply CRYPTO_HMAC + imply CRYPTO_SHA512 + imply CRYPTO_XTS + +config FS_ENCRYPTION_INLINE_CRYPT + bool "Enable fscrypt to use inline crypto" + depends on FS_ENCRYPTION && BLK_INLINE_ENCRYPTION + help + Enable fscrypt to use inline encryption hardware if available. |