Hack-The-Planet Podcast: Episode 009

TIL: iPhone Visual Voicemal is IMAP

Today I learned that the Apple iPhone re-purposes the IMAP protocol to implement the voice mail feature.

By sniffing the network traffic it was possible to examine the IMAP protocol revealing username and the corresponding hashed password (which allows to repeat a successful login) and of course all voicemail files. We want to highlight, that all the voicemail files have been transferred unencrypted.

Assessment of Visual Voicemail from 2012

replacing MyFitnessPal

Well, it’s about time to do something about MyFitnessPal. In our family we’re using their service by the daily. But just for logging. No reports, no further features used.

But still, we were using it for quite a time now:

almost 5 years logged every-single-day.

The service has started to roll out ads for some time now in their apps. There are only iOS / Android apps available. And a mediocre website.

Just recently they started to announce that their free service will restrict how many years back are going to be stored. From those 5 years we will loose 3.

In addition the whole integration has never gotten to a point where I would have decided to upgrade to the paid premium version. No functionality ever got added. No interfacing with scales, no optimizations for UI/UX, …

But they now reduce the functionalities and service and want me to cough up a bit of money:

I am not generally against subscriptions. But I am not getting 9,99 Euro of value out of the service. A shared google sheet would almost achieve parity. And the price itself is just not value based. For 2 Euro I probably would not feel the urge to move on. For 9,99 (times 2 for 2 accounts) make me move.

So I’ve sat down with my wife and we scribbled up some things we want to have in a replacement. The content and feature-set is agreed. Now I’ll throw up a prototype app.

It’ll be integrated with the MQTT scales. And with the flow we came up with we hopefully will reduce the interactions dramatically over MyFitnessPal. And it’ll never stop saving history. And I’ll learn something new.

ASCII browser games

A lot is going on in browsers these days. They are becoming increasingly powerful and resource-demanding.

So it just feels natural to combine high resource usage infrastructure with low resource using graphics to get the worst of both worlds.

Not quite, but you get the idea.

There’s a guy on the internet (haha) who dedicates time to write ASCII / character based graphics engines and games with it.

Meet MrGumix:

Of course, what’s that games and graphics?

Exhibit #1:

And the more advanced Exhibit #2:

Rifftrax revisited

I gave Rifftrax a swing in 2006 when they started their project. Now it’s time for a revisit.

Rifftrax was created by the same people that created and made the series “Mystery Science Theater 3000” so successfull.

Think of this: You go to the movies. Bad movies mostly. And there are 3 of your friends next to you and constantly commenting the movie – in a funny way.

Credit: Comedy Central

Since MST3k had ended a long long time ago the people behind it have started to do the same with current movies. And this they called “Rifftrax”:

Mike Nelson, Bill Corbett and Kevin Murphy, the former stars of Mystery Science Theater 3000, create commentaries for B-movie oddities and Hollywood blockbusters. It’s like watching a movie with your funniest friends!

Their catalog has grown from 0 in 2006 to over 222 full length feature movies and much much more shorts.

If you have never experienced their art: Give them a try. You’ll probably laugh a lot!

when fly-ready drones get more cameras…

There’s the DJI drones that seemingly own the market at this point. Mostly used to take aerial images and movies. Your average YouTuber will probably have two or more of them.

Turns out that, if you add modern camera technology to these small flying objects and a lot of processing power you can do crazy things like indoor realtime 3D mapping…

Skydio is a vendor to look at when it somes to such interesting mapping applications.

One Soundcard to rule them all

The first sound card I got as an upgrade to a PC without sound back in 90s was the glorious Sound Blaster 16:

There were several different sound card options back in the days and all sounded a bit different.

sound card (also known as an audio card) is an internal expansion card that provides input and output of audio signals to and from a computer under control of computer programs. The term sound card is also applied to external audio interfaces used for professional audio applications.

Wikipedia

With the synthesizers and audio processing each series and make produced a distinctive sound. Some of us want to bring these sounds back. But keeping the (old) hardware running is an increasingly difficult task.

For example: The interface used by the above mentioned Sound Blaster 16 card is the ISA bus interface. This interface was introduced in 1981 and replaced in 1993. If you want to hear how such a sound card sounds today you would have to run hardware from this time period.

But some people are working towards getting at least some authentic sound back.

In this talk, Alan Hightower takes a look at the complexities, challenges, and even current progress at integrating all of the above cores into one FPGA based ISA sound card.

This is what the concept would bring if done:

Oh that would be soooooo nice to have all these vintage sound interfaces available and to be able to actually use them for audio output.

Remember Habeas Corpus day

Setting Orange 66 Bureaucracy: A Discordian Holy Day of Fondle and Gropage, when all Discordians should grab their Legislative Representatives by the goolies and cry out “Where’s my Bill of Rights, you bastard?!”

On this day in 3025 YOLD (12 October 1859 AD), His Imperial Majesty, Emperor Norton I, Emperor of the United States and Protector of Mexico, ordered the Congress of the United States to dissolve.

“Fraud and corruption prevent a fair and proper expression of the public voice; that open violation of the laws are constantly occurring, caused by mobs, parties, factions and undue influence of political sects; that the citizen has not that protection of person and property which he is entitled.”

Habeas Corpus Day

a source of iptv streams

Collection of 8000+ publicly available IPTV channels from all over the world.

Internet Protocol television (IPTV) is the delivery of television content over Internet Protocol (IP) networks.

Github: iptv-org/iptv

Using the streams is as simple as it gets: Just open the provided playlilst files in your favorite media player. The above example is th VLC media player.

using AI to generate human faces from emojis and thumbnails

Back in March 2019 we’d already seen artificial people. Yawn.

Back then a Generative adversarial network (GAN) was used to produce random human faces from scratch. It synthesized human faces out of randomness.

Now take it a step further and input actual small images. Like thumbnails or emojis or else.

And what do you get?

Quite impressive, eh? There’s more after the jump.

Oh and they wrote a paper about it: Progressive Face Super-Resolution via Attention to Facial Landmark

global QR code scavenger hunt

I like location based stuff. I like QR codes. There is something that combines both.

Meet Munzee:

Munzee is the next generation in global scavenger hunt games.

Track down QR Codes hidden in the real world and capture them for points. Whether you are a casual player, an avid explorer, or a hardcore competition enthusiast, Munzee helps you rediscover the world around you.

more blacker

A month ago I wrote about a very black paint. This month brings me a papepr about an even blacker substance.

The synergistically incorporated CNT–metal hierarchical architectures offer record-high broadband optical absorption with excellent electrical and structural properties as well as industrial-scale producibility.

Paper: Breakdown of Native Oxide Enables Multifunctional, Free-Form Carbon Nanotube–Metal Hierarchical Architectures

Magnificent app which corrects your previous console command

We all know this. You typed a loooong line of commands in your shell and you made one typo.

That’s the worst.

Now. There’s a command that aims to help:

It is rather simple. But extremely effective.

The Fuck attempts to match the previous command with a rule. If a match is found, a new command is created using the matched rule and executed.

Grab it on github. Install it right away. It went into my toolbelt in an instant.

Hertzian Landscapes

I played with SDR – Software Defined Radio – back in 2013. I’ve still got the equipment around.

Now that I am thinking about it – there is a practical use-case that I will look into in the coming months for sure for it. And just to mention this use case here: With SDR I could create a more versatile 443/886 Mhz receiver.

Anyhow. SDR hardware allows you to access a whole spectrum of radiosignals at once. And a common way to visualize the spectrum is to draw the amplitudes in a line add each new measurement as a new line – color/brightness coded.

What you get is some sort of waterfall diagram that looks like this:

Hertzian Landscapes (2019) is a live visualization of the radio spectrum. Unlike visible light, waves in the radio spectrum cannot be perceived by us directly yet this space is teeming with human activity. Hertzian Landscapes employs a digital receiver to scan large swaths of radio spectrum in near real-time and visualizes thousands of signals into a panoramic electromagnetic landscape. Users can zoom in to specific frequencies by positioning themselves in front of the panorama as if controlling a radio tuner with their body, giving them a sense of walking through the spectrum.
From radio broadcasts to weather satellites and from medical implants to aeronautical navigation, the radio spectrum is divided into hundreds of designated slices each tied to a specific application. Based on a localized frequency database that describes these slices, signals are annotated to provide information about their theoretical type and application.

http://www.hertzianlandscapes.com/

C# PlayStation emulation

After looking into the NES emulation written entirely in C# I came across a similar approach using C# to emulate a full and much more complex PlayStation 1.

Scott Hanselman wrote:

I then stumbled on this very early version of a PSX Emulator in C#.

Now, if you were to theoretically have a Playtation SCPH1001.BIN BIOS and then physically owned a Playstation (as I do) and then created a BIN file from your physical copy of Crash Bandicoot, you could happily run it as you can see in the screenshot below.

Why the MS-DOS floppy disk cache was valid 2 seconds…

If you’re old enough to have used MS-DOS you know the benefits a read cache introduced back at the time for floppy disks. Without such a cache everything data intensive was magnitudes slower.

Now after all these years more and more stories emerge about how certain thresholds and timeings where set back in the days.

This is such a story:

Mark Zbikowski led the MS-DOS 2.0 project, and he sat down with a stopwatch while Aaron Reynolds and Chris Peters tried to swap floppy disks on an IBM PC as fast as they could.

They couldn’t do it under two seconds.

So the MS-DOS cache validity was set to two seconds. If two disk accesses occurred within two seconds of each other, the second one would assume that the cached values were still good.

Raymond Chen blog

There are more links in the original article – so go there and down that rabbit hole!

Experimental Audio Tool: SuperCollider

SuperCollider is a platform for audio synthesis and algorithmic composition, used by musicians, artists, and researchers working with sound. It is free and open source software available for Windows, macOS, and Linux.

SuperCollider features three major components:

scsynth, a real-time audio server, forms the core of the platform. It features 400+ unit generators (“UGens”) for analysis, synthesis, and processing.

sclang, an interpreted programming language. It is focused on sound, but not limited to any specific domain. sclang controls scsynth via Open Sound Control.

scide is an editor for sclang with an integrated help system.

AR use-case: Motorcycle Helmet

I do not drive motor cycles. I never found a reason to.

Given that non-experience: I can only assume that something like this helmet would really make a difference for bikers.

With the integrated camera system it will have a rear-view mirror screen in sight all the time and be able to overlay all sorts of information into the field-of-view of the driver. In addition it seems to be capable to augment the audio getting to the driver in various ways.

If you are as interested as I am, despite not having a motorcycle: take a look at the Indiegogo campaign.

DIY Lightboard

Usually when we visited lectures the notes and explanations where given on a chalk board or a projector. With the lecturer looking away from the audience most of the time.

This is where Light Boards come in handy. They allow the lecturer to face his audience and give explanations on a board…

Like so:

I was made aways by Ryan Heffernans tweet on the project he did together with his son. He built one of these light boards! The short clip above shows his son on their board.

My son and I built a lightboard. You write on it like a whiteboard, but you can face your audience and the writing is illuminated. Commercial versions cost around $10k, but we made ours for $400 in parts from Home Depot. Here’s how.

Ryan Heffernan Tweet

Of course there are commercial ready-made ones. But where’s the fun in that?

type like you’re a movie hack0r

HACK LIKE A PROGRAMMER IN MOVIES AND GAMES!
GeekTyper was inspired by the various media where hacking is usually portrayed incorrectly.
Simply randomly mash your keyboard and code will be simulated on your screen.

This is hilarious! :-) I’ve had way to much fun poking keys while trying it out…

Of course there’s also a screensaver that you can install. Recommended for office use. Not recommended on airplanes and other public spaces.

I’ve just checked with a real person. I’ve used the Visual Studio skin and typed away. Oh the aww.

For those on macOS: