Acitivity3: Backdoor

Files and What I did

• ./interpreter/: source code for Mini Language interpreter
  • I implemented the interpreter based on the given skeleton code
• ./login/
  • gen_login.py: python script to generate login.mini
    • I forked from KAIST-IS521/backdoor-blukat29 repository
    • I just changed minor fix like removing whitespace, adding my signature
    • I learned how to implement program in Mini language from his code
  • login.mini: login program written in Mini Language
  • login.sh: shell script to do test easily
• ./test/: I implemented all of them
  • gen_test.py: python script to generate test.mini
  • test.mini: test program written in Mini Language
  • test.md: descript of test.mini
  • test.sh: shell script to do test easily
• ./backdoor/: source code for Mini Language interpreter with backdoor
  • I copied my ./interpreter/ code
  • I inserted the backdoor. It only works for my login program
• ./compiler/compiler.ml: given compiler for Mini Language, I just used it
• ./README.md: simple lists what I did for each file and what I learned

What I learned

• I learned how to implement simple interpreter and how to insert backdoor in the interpreter.
• So, if some guys create both program and running environment that I use, I might be in danger.