Jacek Wieczorek Jacajack

## get_imgui.cmake
FetchContent_Populate(imgui
  URL https://github.com/ocornut/imgui/archive/docking.zip
  SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/imgui
)

set(OpenGL_GL_PREFERENCE "LEGACY")
find_package(OpenGL 2 REQUIRED)
find_package(glfw3 REQUIRED)

add_library(imgui_glfw STATIC

## misleading-cat.cpp
/* So how does this work?
I'm using ANSI escape sequences to control the behavior of the terminal while
cat is outputting the text. I deliberately place these control sequences inside
comments so the C++ compiler doesn't try to treat them as code.*/
//[2K[2D[A[2K[A[2K[A[2K[A[2K[A
/*The commands in the fake code comment move the cursor to the left edge and
clear out the line, allowing the fake code to take the place of the real code.
And this explanation uses similar commands to wipe itself out too. */
//[2K[2D[A[2K[A[2K[A[2K[A
#include <cstdio>

## usb-unlock-luks.md

      
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                da-n
                / usb-unlock-luks.md
            
            
              Created
              August 24, 2019 13:11
            
              
                Unlock LUKS full disk with USB stick
              
          
    Configuration for passwordless root filesystem

Source: https://www.howtoforge.com/tutorial/passwordless-encryption-of-linux-root-partition/
The process of entering the passphrase at boot time will now be automated using an USB memory stick.  Instead of using a passphrase , the secret key on the USB will decrypt the encrypted volumes. Connect an USB stick to the VM and locate it using the dmesg command.  It is detected as /dev/sdb in my VM.
The secret key of 8192 random byte is extracted from the usb stick using the dd command.
dd if=/dev/sdb of=/root/secret.key bs=512 skip=4 count=16


## TwoMethods.md

      
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                bloc97
                / TwoMethods.md
            
            
              Last active
              February 20, 2024 12:19
            
              
                Two Fast Methods of Generating True Random Numbers on the Arduino
              
          
    Two Fast Methods of Generating True Random Numbers on the Arduino

Arduino true random number generator

B. Peng

December 2017

Abstract

The AVR series microcontrollers are a collection of cheap and versatile chips that are used in many applications ranging from hobbist projects to commercial infrastructure. One major problem for some hobbists is the lack of secure random number generation on the Arduino platform. The included pseudo-random number generator (PRNG) is very easy to defeat and is useless for any crypto-related uses. One recommendation from the Arduino Reference Manual is to use atmospheric noise from the chip's analog sensor pins as seed data^[6].

Unfortunately this method is extremely weak and should not be used to emulate a true random number generator (TRNG). Existing methods such as using the internal timer drift or using a dedicated generator are either too slow, requires extensive external hardware or modifications to the microcontroller's internal mech

  
## get_gists.py
# first: mkdir user && cd user && cp /path/to/get_gists.py .
# python3 get_gists.py user
import requests
import sys
from subprocess import call

user = sys.argv[1]

r = requests.get('https://api.github.com/users/{0}/gists'.format(user))

## ltspice.md

      
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                metacollin
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              April 30, 2022 10:28
            
              
                LTSpice color scheme - Twilight After Dawn
              
          
LTSpice color scheme - Twilight After Dawn

                |  R    |  G    |  B    |
Wires           |  138  |  154  |  149  |
Junctions       |  152  |  205  |  255  |
Component body  |  207  |  106  |  76   |
Graphic Flag | 218 | 239 | 163 |


## gist:73e90fd5463622be1ca3f8abd6940659

      
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              Last active
              March 7, 2024 14:17
            
              
                RGBW Bluetooth LED controller protocol
              
          
    Controller for an RGBW LED strip purchased from AliExpress
It only appears to fire up the RGB strip or the white strip, never both at once.
Endpoint = 0xb = 0000ffe9-0000-1000-8000-00805f9b34fb

cc2333 - fade on, to whichever output / colour was used last.  Will re-fade if reissued.
cc2433 - fade off

56xxxxxxyyf0aa - change to RGB output - xxxxxx = colour code in hex. yy = anything hexy

  
## usb_hid_keys.h
/**
 * USB HID Keyboard scan codes as per USB spec 1.11
 * plus some additional codes
 *
 * Created by MightyPork, 2016
 * Public domain
 *
 * Adapted from:
 * https://source.android.com/devices/input/keyboard-devices.html
 */

## novpn.sh
#!/bin/bash

# === INFO ===
# NoVPN
# Description: Bypass VPN tunnel for applications run through this tool.
VERSION="3.0.0"
# Author: KrisWebDev
# Requirements:  Linux with kernel > 2.6.4 (released in 2008).
#                This version is tested on Ubuntu 14.04 and 19.10 with bash.
#                Main dependencies are automatically installed.

## tcp_server.c
/*
    C socket server example, handles multiple clients using threads
    Compile
    gcc server.c -lpthread -o server
*/

#include<stdio.h>
#include<string.h>    //strlen
#include<stdlib.h>    //strlen
#include<sys/socket.h>
	FetchContent_Populate(imgui
	URL https://github.com/ocornut/imgui/archive/docking.zip
	SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/imgui
	)

	set(OpenGL_GL_PREFERENCE "LEGACY")
	find_package(OpenGL 2 REQUIRED)
	find_package(glfw3 REQUIRED)

	add_library(imgui_glfw STATIC
	/* So how does this work?
	I'm using ANSI escape sequences to control the behavior of the terminal while
	cat is outputting the text. I deliberately place these control sequences inside
	comments so the C++ compiler doesn't try to treat them as code.*/
	//[2K[2D[A[2K[A[2K[A[2K[A[2K[A
	/*The commands in the fake code comment move the cursor to the left edge and
	clear out the line, allowing the fake code to take the place of the real code.
	And this explanation uses similar commands to wipe itself out too. */
	//[2K[2D[A[2K[A[2K[A[2K[A
	#include <cstdio>
	# first: mkdir user && cd user && cp /path/to/get_gists.py .
	# python3 get_gists.py user
	import requests
	import sys
	from subprocess import call

	user = sys.argv[1]

	r = requests.get('https://api.github.com/users/{0}/gists'.format(user))
	/**
	* USB HID Keyboard scan codes as per USB spec 1.11
	* plus some additional codes
	*
	* Created by MightyPork, 2016
	* Public domain
	*
	* Adapted from:
	* https://source.android.com/devices/input/keyboard-devices.html
	*/
	#!/bin/bash

	# === INFO ===
	# NoVPN
	# Description: Bypass VPN tunnel for applications run through this tool.
	VERSION="3.0.0"
	# Author: KrisWebDev
	# Requirements: Linux with kernel > 2.6.4 (released in 2008).
	# This version is tested on Ubuntu 14.04 and 19.10 with bash.
	# Main dependencies are automatically installed.
	/*
	C socket server example, handles multiple clients using threads
	Compile
	gcc server.c -lpthread -o server
	*/

	#include<stdio.h>
	#include<string.h> //strlen
	#include<stdlib.h> //strlen
	#include<sys/socket.h>