ourobouros

Imagine this: it's Sunday afternoon at 1pm, and you want to watch some live content. But you don't have a TV subscription. So you do a little Googling, and eventually you find yourself on a sketchy website where you can watch the content you're looking for. But while the website has a video player, it's surrounded by advertisements, and probably a cryptominer too. You don't want this website eating your CPU for 2 hours while you're watching your favorite Sunday afternoon content.

Wouldn't it be nice if you could watch that video in VLC instead? Then you can close the sketchy website and still watch your content. It's like having your cake and taking a bite of it too!

Here's how you do it:

Capture the m3u8 request in dev tools. Open the site (or just the iframe, if possible) in DevTools and click "play." Search the network tab for m3u8 and grab the first request.
Run VLC with command line flags to set the User Agent and Referrer. From the request body, you need to copy the requested URL,

Open Source Business Challenges and Reality

Original Japanese note here.

Original Author: Rui Ueyama (creator of the mold linker)

Translated by @windowsboy111

Minimally edited by @lleyton

ChatGPT passes the 2022 AP Computer Science A free response section

For fun, I had ChatGPT take the free response section of the 2022 AP Computer Science A exam. (The exam also has a multiple-choice section, but the College Board doesn't publish this.) It scored 32/36.

Methodology

For each question, I pasted in the full text of the question and took the response given.
I tried each question once and took the response given: no cherry-picking. For readability, I've added indentation in some cases, and included method signatures where they were provided in the question and ChatGPT only provided a body. I've added question numbers; any other comments are ChatGPT's.
Many questions have examples containing tables or diagrams; because those don't translate well to plain text, I excluded those tables/diagrams and any text that referenced them.
I excluded the initial instructions at the top of th

WAR ON RAZE

This is the story of what happened when I went down a rabbit hole.

It starts with k7. If you press Ctrl-] in the k7 WASM console, this appears:

x^x*/:x:2_!100

That's a prime number filter. There are faster ones - kparc.com's x,1_&&/80#'!:'x is beautiful - but this one is really short.

Beyond librispeech: About the amount of spoken content stored in Librivox

Overview

Given that LibriVox contains enough of english content for a speech processing corpus, LibriSpeech, to be built from it, I've wondered how much content LibriVox has in languages other than English.

I've downloaded the JSON API contents of Librivox, separated the audiobooks according to their language, and summed up their lengths, obtaining a language breakdown expressed in spoken time.

This gave results of over 60 thousand hours for english, thousands of hours each for German, Dutch, French, Spanish, and hundreds of hours for other languages.

See the official Differentiable Programming Manifesto instead.

Trying to deploy WPA3 on my home network

Introduction

Recently, news broke about a new possible offline attack on WPA2 using PMKID. To summarize the attack, WPA2 protected APs can end up broadcasting PMKID values which can then be used to offline-brute-force the password.

These PMKID values are computed this way:

PMKID = HMAC-SHA1-128(PMK, "PMK Name" | MAC_AP | MAC_STA)

	Option Explicit

	dim oShell, oFSO, dangerousExes, exe, cmdHardCodedHash, cmdDynamicHash, strComputerName, strUserName, strLogFilePath, strSafeDate, _
	strSafeTime, strDateTime, strLogFileName, strEventInfo, objLogFile, cmdHashCache, objCmdHashCache, dangerHashCache, _
	dangerHashData, mailFile, objDangerHashCache, oFile

	Set oShell = WScript.CreateObject("WScript.Shell")
	Set oFSO = CreateObject("Scripting.FileSystemObject")
	dangerousExes = Array("Magnify.exe", "Narrator.exe", "osk.exe", "sapisvr.exe", "control.exe", "utilman.exe")
	cmdHardCodedHash = "db 06 c3 53 49 64 e3 fc 79 d2 76 31 44 ba 53 74 2d 7f a2 50 ca 33 6f 4a 0f e7 24 b7 5a af f3 86"

	Option Explicit

	dim oShell, oFSO, dangerousExes, exe, cmdHardCodedHash, cmdDynamicHash, strComputerName, strUserName, strLogFilePath, strSafeDate, _
	strSafeTime, strDateTime, strLogFileName, strEventInfo, objLogFile, cmdHashCache, objCmdHashCache, dangerHashCache, _
	dangerHashData, mailFile, objDangerHashCache, oFile

	Set oShell = WScript.CreateObject("WScript.Shell")
	Set oFSO = CreateObject("Scripting.FileSystemObject")
	dangerousExes = Array("Magnify.exe", "Narrator.exe", "osk.exe", "sapisvr.exe", "control.exe", "utilman.exe")
	cmdHardCodedHash = "db 06 c3 53 49 64 e3 fc 79 d2 76 31 44 ba 53 74 2d 7f a2 50 ca 33 6f 4a 0f e7 24 b7 5a af f3 86"

	#!/bin/bash
	#-------------------------------------------------------------------------------
	# draw-histogram - generates an ASCII-art histogram (bar chart) from input data.
	#-------------------------------------------------------------------------------
	# Expects a series of lines of the form `<category-name> <count>` to passed
	# via stdin.
	#
	# Generates a table the looks something like the following:
	#
	# +-------+----+