---
license: other
---

# sim-exam

The data is split by level (`L1/`, `L2/`, `L3/`). Each level is a single `tar` archive, compressed with zstd, encrypted with AES-256-CBC (PBKDF2, 100000 iterations), and split into 10GB parts.

## Decrypt & extract

```bash
L=L1
cd $L
sha256sum -c sha256sums_$L.txt
cat sim_exam_$L.tar.zst.enc.part-* \
  | openssl enc -d -aes-256-cbc -pbkdf2 -iter 100000 -pass pass:'<PASSWORD>' \
  | zstd -d -T0 \
  | tar -xf -
```