The 'crypt' command is missing from some UNIX implementations due to Department of Commerce restrictions on exporting anything that in any way resembles "strong" encryption. It is ironic that 'crypt' uses a flawed algorithm, and that files encyphered with it may be broken by Robert Baldwin's 'cbw' package. This makes the need for a simple, yet at least moderately secure utility for local file encryption all the more acute. The 'cruft' command is intended as a replacement for the missing UNIX 'crypt' command.