config FS_ENCRYPTION bool "FS Encryption (Per-file encryption)" select CRYPTO select CRYPTO_HASH select CRYPTO_BLKCIPHER 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. config FS_ENCRYPTION_ALGS tristate select CRYPTO_AES select CRYPTO_CBC select CRYPTO_CTS select CRYPTO_ECB select CRYPTO_HMAC select CRYPTO_SHA256 select CRYPTO_SHA512 select 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. config FSCRYPT_SDP bool "Sensitive Data Protection for Per-file-encryption" depends on FS_ENCRYPTION depends on SDP help Enable SDP functional to fscrypto module. This feature is supporting "Data-At-Rest" for file systems using Per-file-encryption being controlled by SDP user status.