+config EGLIBC_OPTION_EGLIBC_CRYPT
+ bool "Encryption library"
+ default y
+ help
+ This option group includes the `libcrypt' library which
+ provides functions for one-way encryption. Supported
+ encryption algorithms include MD5, SHA-256, SHA-512 and DES.
+
+
+config EGLIBC_OPTION_EGLIBC_CRYPT_UFC
+ bool "Ultra fast `crypt' implementation"
+ default y
+ select EGLIBC_OPTION_EGLIBC_CRYPT
+ help
+ This option group provides ultra fast DES-based implementation of
+ the `crypt' function. When this option group is disabled,
+ (a) the library will not provide the setkey[_r] and encrypt[_r]
+ functions and (b) the crypt[_r] function will return NULL and set the
+ errno to ENOSYS if /salt/ passed does not correspond to either MD5,
+ SHA-256 or SHA-512 algorithm.
+
+