COBOL CTF

Party Like It's 1959!

with Sam Bowne, Elizabeth Biddlecome,
Irvin Lemus and Kaitlyn Handelman

Final Scores for HOPE 2020

Challenges
ED 200: Google Cloud Linux Server	15
CBL 1: Basic COBOL	160
CBL 2: String Handling	50
CBL 3: File I/O	25
CBL 4: Tables	110
CBL 5: Subroutines	30
CBL 6: ASCII and Modular Arithmetic	60
CBL 7: RSA Encryption	170
CBL 8: IBM i Server	30
CBL 9: IBM Rational Developer for i	20

Technical References
COBOL Tutorial from JavaTPoint
COBOL Tutorial from TutorialsPoint
GnuCOBOL Manual
GnuCOBOL Sample Programs
GNU COBOL 2.0 Programmer's Guide (PDF)
COBOL - SUBROUTINES
Free IBM COBOL course

Cultural References
COBOL-coding volunteers sought
95% of ATM swipes rely on COBOL
Banks scramble to fix old systems
Our Government Runs on COBOL
Is Java the next COBOL?L

Archived Scoreboards
Scores 7-27-2020
Final DERPCON Scores
Archived Scores Before DERPCON
Final GRIMMCON Scores 4-14-20
Scores Before GRIMMCON

Testimonials

Dear God
What the hell is wrong
with you people, COBOL
I am going to have to
check it out LOL
Boss: What do you think of COBOL?
Me: Fuck COBOL, its why checks
take 3 days to clear the bank.
Boss: Wanna learn COBOL for a CTF?
Me: Hell yes!
Lol cobol CTF? That's like participating
in a CTF that's written in Swahili bro

This was a great way to learn why
I never want to do any actual
COBOL work.