Basile Simon basilesimon

GPG Signing Subkey Tutorial

Why Use a Subkey?

Problem: You need someone else to sign git commits with your key, but sharing your primary private key is dangerous.

Solution: Create a temporary signing subkey that can be:

Shared safely (primary key stays secure)
Revoked easily after use
Used independently for signing

WACZ Webcam Image Extractor

A Python script to extract webcam images from WACZ (Web Archive Collection Zipped) files.

Purpose

Extracts Belarus customs webcam images (OSH1.jpg, OSH2.jpg, OSH3.jpg, OSH4.jpg) from archived web data collected between August 5-27, 2025.

Requirements

$ exiftool -m -p template.txt -r path/to/images  > out.csv

$ cat out.csv | head -n 5
"/DGuttenfelder_DPRK_2017/2017_iPhone","DPRK_iphone_2017_1208.jpg","Apple","","iPhone 6s Plus back camera 4.15mm f/2.2","1/172","2.2","25","4.2 mm","Program AE","2017:08:28 15:45:36","39 deg 2' 0.27" N, 125 deg 41' 31.51" E","39 deg 2' 0.27" N","125 deg 41' 31.51" E","2017:08:28 07:15:36Z","2017:08:28","78.74673629","","","","","","","","","",""
"/DGuttenfelder_DPRK_2017/2017_iPhone","DPRK_iphone_2017_0670.jpg","Apple","","iPhone 6s Plus front camera 2.65mm f/2.2","1/954","2.2","32","2.6 mm","Program AE","2017:08:27 12:08:06","37 deg 57' 22.13" N, 126 deg 40' 37.81" E","37 deg 57' 22.13" N","126 deg 40' 37.81" E","2017:08:27 03:38:06Z","2017:08:27","245.7400531","","","","","","","","","",""
"/DGuttenfelder_DPRK_2017/2017_iPhone","DPRK_iphone_2017_0664.jpg","Apple","","iPhone 6s Plus front camera 2.65mm f/2.2","1/954","2.2","32","2.6 mm","Program AE","2017:08:27 12:08:04","37 deg 57' 22.13" N, 126 deg 40' 37.

Stated Goal: Add photographer metadata to 1.JPG, then add a highlight metadata to the resulting 2.JPG. What will be contained in the resulting 3.JPG? Presumably, a store of all previous Assertions.

$ c2patool 1.JPG -m manifest-1.json -o 2.JPG
...
$ c2patool 2.JPG -m manifest-2.json -o 3.JPG
...
$ c2patool 3.JPG --tree
Tree View:
 Asset:3.JPG, Manifest:starling-me:urn:uuid:100d326b-3cf4-4aa3-a418-bdd4f5ca23e9

	filename	name	description	author	publication_datetime	event	narrative	general_narrative	facebook_total	twitter_total	telegram_engagement	overall_engagement	dateCrawled	sourceId	authsign_domain	URL
	edbcfd1d0bcaa2682560616f25397eed249ec02d29973afee2be053ecb719e3b	Володин: признание ЛНР и ДНР остановит гуманитарную катастрофу	Authenticated web archive of [ https://regnum.ru/news/3514149.html] captured on 2023-02-17	Digital Forensic Research Lab	2022-02-22T08:03:00Z	Recognition of Donbas independance	The Russian army will establish peace	Russia is seeking peace	0	0	0	0	2023-02-17T02:24:36Z	6936781112	authsign.starlinglab.org	https://regnum.ru/news/3514149.html

Keybase proof

I hereby claim:

I am basilesimon on github.
I am basilesimon (https://keybase.io/basilesimon) on keybase.
I have a public key whose fingerprint is F659 40E8 4739 495F BAD6 74C3 9275 B939 3778 0CF6

To claim this, I am signing this object:

	library(tidyverse)
	library(readxl)
	library(jsonlite)

	read_excel("DFRLab_RNR-data.xlsx",
	sheet = "RNR pre-invasion events") %>%
	mutate(
	path = target_url,
	organization_id = "dfrlab",
	collection_id = "pre-invasion-russian-narratives",