Redundant file archiving system (Mostly complete) (1395970)

Basically I have a few small separate programs that range from 70% to 90% complete, all I need is for them to be finished according to my specifications. Here is the list of the types of programs you will be dealing with. The list may look like a lot of work but it really isn't since I've done most of the work already, and I presume it would take around 20 minutes on each program. Source files have been uploaded for viewing. RAID backup and recover utility 70% Completed. It's 2 programs a splitter and a joiner. Features implemented so far: ??" split input into 2 parts ??" join split parts to a single output ??" recover part A ??" recover part B Features I need completed: ??" split input into 3 parts, including parity calculation - recovers A from B and X to form a joined file -Encryption program- Around 80% complete. It's 1 Program Features implemented so far: ??" encryption/decryption with a single character password. Features I need completed: ??" support for variable length passwords (greater than 1 character) Implement MD5 hashing of the password to confirm the password is correct before attempting decryption. -Archiving program- 90% completed. It's 2 programs, archiver and an un-archiver. Features implemented so far: ??" archiving two files Features I need completed: ??" archiving a specifiable number of files (more than two) ??" archiving files that are longer than 256 bytes ??" implement variable file names and directories.