Had some ideas for a system of passwords based off of the filename:

FORMAT: <string>.<id>.<extension>

+----+------------------+
| ID |     PASSWORD     |
+====+==================+
| A  | <string>         |
| B  | <string>.reverse |
| C  | md5(<string>)    |
| D  | sha1(<string>)   |
| E  | ''               |
+----+------------------+

7z a -tzip -pExAmPlE ExAmPlE.A.zip file
7z a -ttar -p'' Another.E.tar ExAmPlE.A.zip