Challenges that give extra score
Closed
These challenges have been solved already but feel free of submitting your solution, if you did it independently of the one posted.
- The four-time-pad : solved by Marco Gasparini (+1) and Alessio Zennaro (+1)
- RSA logfile : solved by Alessio Zennaro (+1) and Davide Moro (+1)
- 1-round AES : solved by Francesco Cagnin (+2)
- Weak RSA : solved by Alessio Zennaro (+1)
- Can you forge a signature? : solved by Davide Moro (+1)
Open
- Cryptocat (+2)