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Cyril Delétré cdeletre

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@lizthegrey
lizthegrey / attributes.rb
Last active February 5, 2026 21:27
Hardening SSH with 2fa
default['sshd']['sshd_config']['AuthenticationMethods'] = 'publickey,keyboard-interactive:pam'
default['sshd']['sshd_config']['ChallengeResponseAuthentication'] = 'yes'
default['sshd']['sshd_config']['PasswordAuthentication'] = 'no'
@Taywee
Taywee / alltoz64.py
Created February 20, 2019 20:30
Simple python converter to change an input n64 rom to z64 format from any other byte order format
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright © 2019 Taylor C. Richberger <taywee@gmx.com>
# This code is released under the MIT license
import argparse
import shutil
from io import BytesIO
def convertchunk(chunk, byteswapped, wordswapped):
@cnlohr
cnlohr / esp32_aes_example.c
Created November 7, 2018 19:50
Example of using hardware AES 256 Crypto in CBC mode on the ESP32 using ESP-IDF
#include <string.h>
#include <stdio.h>
#include <hwcrypto/aes.h>
/*
For Encryption time: 1802.40us (9.09 MB/s) at 16kB blocks.
*/
static inline int32_t _getCycleCount(void) {
int32_t ccount;
@delhoume
delhoume / tpm2net-wemos.ino
Created April 9, 2018 08:28
TPM2.NET protocol handler for esp8266
/*
TPM2.NET protocol handler
Works with Jinx LED software
*/
#include <ESP8266WiFi.h>
#include <WiFiUdp.h>
#include <FastLED.h>
#include <WiFiManager.h>
#include <Ticker.h>
@gbaman
gbaman / HowToOTGFast.md
Last active January 18, 2026 09:02
Simple guide for setting up OTG modes on the Raspberry Pi Zero, the fast way!

Setting up Pi Zero OTG - The quick way (No USB keyboard, mouse, HDMI monitor needed)

More details - http://blog.gbaman.info/?p=791

For this method, alongside your Pi Zero, MicroUSB cable and MicroSD card, only an additional computer is required, which can be running Windows (with Bonjour, iTunes or Quicktime installed), Mac OS or Linux (with Avahi Daemon installed, for example Ubuntu has it built in).
1. Flash Raspbian Jessie full or Raspbian Jessie Lite onto the SD card.
2. Once Raspbian is flashed, open up the boot partition (in Windows Explorer, Finder etc) and add to the bottom of the config.txt file dtoverlay=dwc2 on a new line, then save the file.
3. If using a recent release of Jessie (Dec 2016 onwards), then create a new file simply called ssh in the SD card as well. By default SSH i

@gbaman
gbaman / HowToOTG.md
Last active January 21, 2026 00:59
Simple guide for setting up OTG modes on the Raspberry Pi Zero

Raspberry Pi Zero OTG Mode

Simple guide for setting up OTG modes on the Raspberry Pi Zero - By Andrew Mulholland (gbaman).

The Raspberry Pi Zero (and model A and A+) support USB On The Go, given the processor is connected directly to the USB port, unlike on the B, B+ or Pi 2 B, which goes via a USB hub.
Because of this, if setup to, the Pi can act as a USB slave instead, providing virtual serial (a terminal), virtual ethernet, virtual mass storage device (pendrive) or even other virtual devices like HID, MIDI, or act as a virtual webcam!
It is important to note that, although the model A and A+ can support being a USB slave, they are missing the ID pin (is tied to ground internally) so are unable to dynamically switch between USB master/slave mode. As such, they default to USB master mode. There is no easy way to change this right now.
It is also important to note, that a USB to UART serial adapter is not needed for any of these guides, as may be documented elsewhere across the int

@jblang
jblang / tpm2.md
Last active December 28, 2025 18:11
TPM2 Protocol Description

TPM2 Protocol Implementation

Introduction

Frame data is transferred inside packets (similar to DMX, for example). A frame is an image representing a matrix or a light scene.

The packets start and end with one-byte characters. In between are a few control bytes followed by the payload. There is no set size for a payload; it is transmitted with each packet. This makes the protocol quite flexible. There are enough bytes in a single packet for an RGB matrix with 21,845 pixels, but if you just want to control an RGBW lamp, that only requires 9 bytes. The variable frame size means there is no overhead, allowing for maximum transfer speed.

TPM2 Packet Structure