- Category: crypto
- Solves: 4/790
- Difficulty: ⭐️⭐️
- Hosting type: file
- Tags: Kyber
Nonce reuse is an issue that affects many different cryptographic schemes. It can render an otherwise secure system completely trivial to break.
Handout files:
- ./publish/build-kyber.sh
- ./publish/kyber-noncense.py
- ./publish/libpqcrystals_kyber1024_ref.so
- ./publish/my.patch
- ./publish/output.txt
Flag: bwctf{homework_1:solve_with_nonce--_instead_of_--nonce,_homework_2:solve_without_removal_of_compression}