asepharyana
7a6e717c28
- Deleted all previous dummy docs (defcon-quals-2024, infra/cloudflare-525, debugging/websocket-timeout, template, docs/*, notes/*, research/*) - Added 14 Gemastik warmup writeups covering encoding, stego, web, pwn, crypto - ch13: RSA small factors; ch14: RSA special integers via paper-search (GCD with paper appendix primes) - All flags recovered and documented with solution methods
485 B
485 B
title, event, challenge, category, points, difficulty, flag
| title | event | challenge | category | points | difficulty | flag |
|---|---|---|---|---|---|---|
| Needle — Strings Binary | GEMASTIK 2026 Warmup | Needle | forensics | 500 | easy | GEMASTIK19{str1ngs_c4n_f1nd_m3} |
Needle (500 pts) — Steganografi / Binary
File: secret.bin (748 bytes, binary)
Teks tersembunyi di antara "junk data". Cukup ekstrak strings yang printable:
strings secret.bin | grep GEMASTIK
# GEMASTIK19{str1ngs_c4n_f1nd_m3}
Flag
GEMASTIK19{str1ngs_c4n_f1nd_m3}