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@arch1t3cht
arch1t3cht / video_noob_guide.md
Last active March 12, 2026 16:01
What you NEED to know before touching a video file

What you NEED to Know Before Touching a Video File

Hanging out in subtitling and video re-editing communities, I see my fair share of novice video editors and video encoders, and see plenty of them make the classic beginner mistakes when it comes to working with videos. A man can only read "Use Handbrake to convert your mkv to an mp4 :)" so many times before losing it, so I am writing this article to channel the resulting psychic damage into something productive.

If you are new to working with videos (or, let's face it, even if you aren't), please read through this guide to avoid making mistakes that can cost you lots of time, computing power, storage space, or video quality.

@steven-michaud
steven-michaud / ThirdPartyKexts.md
Last active March 14, 2026 01:26
Running Third Party Kernel Extensions on Virtualization Framework macOS Guest VMs

Running Third Party Kernel Extensions on Virtualization Framework macOS Guest VMs

As of macOS 12 (Monterey), Apple's Virtualization framework has nice support for macOS guest virtual machines, but with severe limitations: For example you can't install a macOS guest on Intel Macs, install guests with newer versions of macOS than the host, copy and paste between the host and the guest, or install third party kernel extensions in the guest. As usual for Apple, the functionality they do support is nicely implemented, but they've left out so much that the result is only marginally useful -- at least compared to

@thelastlin
thelastlin / libsk-libfido2_BUILD_FROM_OPENSSH.md
Last active March 2, 2026 22:27
Build libsk-libfido2.so from OpenSSH-portable

Tested on macOS Sonoma Developer beta 2 (23A5276g)

Build libsk-libfido2.so

Prerequisite

  1. Download openssh-portable source code, install libcrypto, libfido2;
  2. Configure openssh-portable build system by ./configure # [options].

Apply patch

@antifuchs
antifuchs / boot-unlock.nix
Created September 12, 2022 19:40
# To set this up, first get tailscale working in an isolated linux shell:
# 1. sudo systemctl stop tailscaled.service
# 2. tailscaled -port 9993 -state tailscale-luks-setup.state -tun userspace-networking -socket ./tailscaled.sock
# 3. tailscale -socket ./tailscaled.sock up -hostname HOSTNAME-luks
# 4. tailscale -socket ./tailscaled.sock down
# 5. ctrl-c out of tailscaled
# 6 sudo systemctl start tailscaled.service
#
# Then add the .state file to your machine secrets and pass its path as tailscaleStatePath.
@zingaburga
zingaburga / sve2.md
Last active March 13, 2026 05:04
ARM’s Scalable Vector Extensions: A Critical Look at SVE2 For Integer Workloads

ARM’s Scalable Vector Extensions: A Critical Look at SVE2 For Integer Workloads

Scalable Vector Extensions (SVE) is ARM’s latest SIMD extension to their instruction set, which was announced back in 2016. A follow-up SVE2 extension was announced in 2019, designed to incorporate all functionality from ARM’s current primary SIMD extension, NEON (aka ASIMD).

Despite being announced 5 years ago, there is currently no generally available CPU which supports any form of SVE (which excludes the [Fugaku supercomputer](https://www.fujitsu.com/global/about/innovation/

@joevt
joevt / ThunderboltUtil.sh
Last active November 2, 2025 22:24
A set of functions to examine and modify Thunderbolt DROMs
#! /bin/zsh
# ThunderboltUtil.sh v1.7
# by joevt Dec 5, 2024
#=========================================================================================
#
#
# Thunderbolt DROM Notes:
#
#
@saagarjha
saagarjha / CreateGhidraApp.sh
Last active February 22, 2026 21:36
Creates a Ghidra.app bundle for macOS
#!/bin/sh
set -eu
create_iconset() {
mkdir -p Ghidra.iconset
cat << EOF > Ghidra.iconset/Contents.json
{
"images":
[
@azenla
azenla / disable-ssl-pin.js
Created October 11, 2019 22:26
This Frida script disables SSL pinning and verification on any target macOS Catalina process.
var SecTrustEvaluate_handle =
Module.findExportByName('Security', 'SecTrustEvaluate');
var SecTrustEvaluateWithError_handle =
Module.findExportByName('Security', 'SecTrustEvaluateWithError');
var SSL_CTX_set_custom_verify_handle =
Module.findExportByName('libboringssl.dylib', 'SSL_CTX_set_custom_verify');
var SSL_get_psk_identity_handle =
Module.findExportByName('libboringssl.dylib', 'SSL_get_psk_identity');
var boringssl_context_set_verify_mode_handle = Module.findExportByName(
'libboringssl.dylib', 'boringssl_context_set_verify_mode');
@marcan
marcan / roca_test.py
Last active June 20, 2022 19:33
Non-obfuscated version of the ROCA Infineon RSA key test
#!/usr/bin/python
import sys
# Credit: https://crypto.stackexchange.com/questions/52292/what-is-fast-prime
generators = [
(2, 11), (6, 13), (8, 17), (9, 19), (3, 37), (26, 53), (20, 61), (35, 71),
(24, 73), (13, 79), (6, 97), (51, 103), (53, 107), (54, 109), (42, 127),
(50, 151), (78, 157),
]
@marcan
marcan / smbloris.c
Last active November 22, 2022 08:32
SMBLoris attack proof of concept
/* SMBLoris attack proof-of-concept
*
* Copyright 2017 Hector Martin "marcan" <marcan@marcan.st>
*
* Licensed under the terms of the 2-clause BSD license.
*
* This is a proof of concept of a publicly disclosed vulnerability.
* Please do not go around randomly DoSing people with it.
*
* Tips: do not use your local IP as source, or if you do, use iptables to block