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NAME
       crypt - crypt and decrypt standard input

SYNOPSIS
       crypt key

DESCRIPTION
       Crypt encrypts characters on the standard input by using 'key'.
       The file can eventually be decrypted by running it back through
       crypt  with  the same key. Double encryption (encrypting a file
       with first one key and then another) is allowable, but on  some
       systems  the decryption must be done in the exact reverse order
       as encryption was done.
       
       The encryption algorithm used by 'crypt' is not  a  complicated
       one, so users requiring a great degree of protection should not
       rely on this tool.

FILES

SEE ALSO

DIAGNOSTICS

AUTHORS

       Original  from  Kernighan  &  Plauger's  'Software Tools', with
       modifications  by  Debbie  Scherrer.   (NOTE:    the   original
       encryption algorithm has been altered slightly.)

BUGS
       On  IAS and VMS systems, double encryption must be decrypted in
       the exact reverse order as the encryption.






















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