Program name

encrypt - encrypt or decrypt a file using DES encryption

Usage

encrypt

key: an 8 character string used as the DES key to encrypt/decrypt

input file: the file to encrypt/decrypt

output file: the result of the operation

mode: specifies whether to encrypt or decrypt- if mode=0, then encrypt the input file, if mode=1 then decrypt the input file

CAN YOU PLEASE HELP CREATE A PROGRAM THAT READS A FILE AND ENCRYPT AND DECRYPTS AND WRITES TO A NEW FILE USING THE READ() AND WRITE() FUNCTIONS WITH THE HELP OF THE LINUX ECB_CRYPT() FUNCTION. THE PROGRAM SHOULD BE COMPILED USING THE ./ENCRYPT(KEY, INPUT FILE, OUTPUT FILE, MODE OF 0 OR 1 FOR ENCRYPTION)

C PROGRAM