twotimepad-solver

A small interactive solver for an encrypted twotimepad. This tool is written in PHP.

This tool was originally created during one of my college projects, but was rewritten afterwards.

Start the tool

Just start the programm via PHP. I know it works with PHP8.2, but probably also in 7.4, 8.0 and 8.1.

php decrypt.php ../examples/msg*.asc

or

php decrypt.php ./examples/msg1.asc ./examples/msg2.asc

Use the tool

This should be pretty self-explanatory. If not, feel free to message me :)

Usage:
 /search  [needleString]                Search for string in combined encrypted message. (fe. "/search hello")
 /index   [msg1|msg2] [index]           Set index from last '/search' result as to msg1 or msg2
 /lookup  [index]                       Lookup ASCII possibilities at index
 /set     [msg1|msg2] [index] [string]  Set a string at a specific position
 /unset   [index] [length]              Unset character/string at a position with the given length
 /print   [?key]                        Print messages (use "key" for printing also the key)
 /ascii                                 Print ASCII XOR Table (careful, big output)
 /clear                                 Clear the screen
 /help                                  Print this message
 /end                                   Finish and end program

This tool has some minor bugs, but afaik only visibility bugs. So, yeah, i'm not gonna fix those.