config ECRYPT_FS tristate "eCrypt filesystem layer support" depends on KEYS && CRYPTO && (ENCRYPTED_KEYS || ENCRYPTED_KEYS=n) select CRYPTO_ECB select CRYPTO_CBC select CRYPTO_MD5 select CRYPTO_SHA256 help Encrypted filesystem that operates on the VFS layer. See to learn more about eCryptfs. Userspace components are required and can be obtained from . To compile this file system support as a module, choose M here: the module will be called ecryptfs. config ECRYPT_FS_MESSAGING bool "Enable notifications for userspace key wrap/unwrap" depends on ECRYPT_FS help Enables the /dev/ecryptfs entry for use by ecryptfsd. This allows for userspace to wrap/unwrap file encryption keys by other backends, like OpenSSL. config WTL_ENCRYPTION_FILTER bool "Enables filtering for some files not to encrypt on eCryptfs" default n depends on ECRYPT_FS help Modification of encrypted filesystem for SD card encryption config ECRYPTFS_FEK_INTEGRITY bool "Enable check integrity of FEK(File encrypiton key) via HMAC" default n depends on ECRYPT_FS help MDFPP requirements: During file decryption of ecrypts, it should check integrity of FEK(File encrypiton key) via HMAC as per