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 | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Say Cheese — EXIF Metadata | writeup | writeups | published | asep |
|
writeups/gemastik-2026-warmup/ch4-say-cheese.md | 2026-08-21T07:25:25.953Z | 2026-08-21T07:25:25.953Z | GEMASTIK 2026 Warmup | Say Cheese — EXIF Metadata | forensics | 500 | easy | GEMASTIK19{h1dd3n_1n_m3tadata_exif} |
Say Cheese (500 pts) — Steganografi / Metadata
File: photo.jpg
Flag disimpan di metadata EXIF foto. Cek dengan exiftool / strings:
strings photo.jpg | grep GEMASTIK
# GEMASTIK19{h1dd3n_1n_m3tadata_exif}
Flag
GEMASTIK19{h1dd3n_1n_m3tadata_exif}