asepharyana
0de2458955
- Deleted all 14 dummy docs from DB + filesystem - Created 14 Gemastik warmup writeups + index via create_document API (DB-first) - ch1-ch12: encoding/stego/web/pwn basics - ch13: RSA small factors - ch14: RSA special integers via paper-search (GCD with paper appendix primes) - All 15 docs indexed and live at wiki.asepharyana.my.id
752 B
752 B
title, type, section, status, author, tags, path, created_at, updated_at, event, challenge, category, points, difficulty, flag
| title | type | section | status | author | tags | path | created_at | updated_at | event | challenge | category | points | difficulty | flag | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Needle — Strings Binary | writeup | writeups | published | asep |
|
writeups/gemastik-2026-warmup/ch3-needle.md | 2026-08-21T07:25:23.053Z | 2026-08-21T07:25:23.053Z | GEMASTIK 2026 Warmup | Needle — Strings Binary | 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}