mtigas

(originally from a tweet thread: https://twitter.com/mtigas/status/949337073495916544 )

updated january 5, 2018; 12:47 US Eastern Time

ok here's a rough list of links i have collected about patches for meltdown / spectre https://kb.cert.org/vuls/id/584653 , that i sort of compiled for my own reference but figure others might want. (info as of this morning, january 5. might have mistakes, use at own risk, etc)

MacOS High Sierra 10.13.2+, Sierra 2017-002 security update, and El Capitan 2017-005 security update mitigate meltdown:

Note (December 16, 2021): These example files haven't been updated since 2016. In either 2019 or 2020, our onion domain was changed to a longer v3 onion address (p53lf57qovyuvwsc6xnrppyply3vtqm7l6pcobkmyqsiofyeznfu5uqd.onion). The examples below don't reflect this, but the configuration portions remain accurate regarding how we currently serve the onion site. (Tor Browser dropped support for v2 addresses, such as propub3r6espa33w.onion, in the second half of 2021.)

These files contain the base configuration for ProPublica’s Tor hidden service mirror.

Of note:

We're using the nginx "subs_filter" and "headers more" modules to allow us to rewrite content and update headers, so that we can convert clearnet links into onion links, where possible.

The following files show an example of how to create subdomains for onion site hidden services. (This hasn't been tested for hidden services for anything other than HTTP/HTTPS.)

(You might also want to read our blog post about ProPublica’s Tor hidden service, including a tutorial and notes on running a hidden service: https://www.propublica.org/nerds/item/a-more-secure-and-anonymous-propublica-using-tor-hidden-services )

In general, this works (maybe just in recent Tor clients) because Tor will handle the connection to www.xxxxxxxxxxxxxxxx.onion as a connection to xxxxxxxxxxxxxxxx.onion. The encapsulated HTTP/HTTPS connection contains the subdomain in the Host: header (and in the case of HTTPS, the SNI

Pizza + Privacy: Eat a Slice, Protect Your Rights Online
Drexel University
February 5, 2015
6:00 - 7:30PM

Mike Tigas slides: download here

Further resources & stuff mentioned in the slides

CryptoParty: Journalist Edition

December 8, 2014 Hosted by CryptoParty NYC at the Brooklyn Public Library

Threat Modeling for Journalists

A quick overview of threat modeling — the who/what/where/when/why/how of digital security — and specific factors and things that might affect journalists.

	#!/usr/bin/env bash

	set -e
	set -x

	brew install signal-cli \|\| brew upgrade signal-cli

	SIGNAL_LIBEXEC_LIBDIR="`brew --prefix signal-cli`/libexec/lib"

	# zkgroup-java*.jar --- remove the linux x86_64 bundled lib

	#!/bin/bash

	# needs openssl 1.1+
	# needs `basez` https://manpages.debian.org/testing/basez/base32hex.1.en.html
	# (but something else that decodes the base64 and re-encodes the raw key bytes
	# to base32 is probably fine too)

	##### generate a key

	openssl genpkey -algorithm x25519 -out /tmp/k1.prv.pem

	#~/.gnupg/gpg.conf
	# Hide your PGP version & other PGP version metadata with these two config lines.

	# This line hides the "Version: GnuPG vX.XX.XX" line
	no-emit-version

	# This line hides the "Comment: XXXXX" lines
	no-comments
	# NOTE if you are using Thunderbird+Enigmail you probably need to set this again in
	# the Enigmail->Preference settings:

	-----BEGIN PGP SIGNED MESSAGE-----
	Hash: SHA512

	The following are the SSL certificate fingerprints for the
	following propublica.org servers as of 2016-03-05.

	CN or SAN: www.propublica.org
	Note: this domain is now served via the Fastly CDN, relying on shared SSL
	certificates. The www.propublica.org domain should be listed as a Subject
	Alternative Name on the certificate served by the CDN endpoint.

	/* Example of "output=flat" format.
	* https://projects.propublica.org/nonprofits/api/v1/search.json?q=propublica */
	{
	"total_results": 2,
	"filings": [
	{
	"tax_prd": 201212,
	"tax_prd_yr": 2012,
	"formtype": 0,
	"pdf_url": "https://bulk.resource.org/irs.gov/eo/2013_09_EO/14-2007220_990_201212.pdf",