Відео

Baudot = 'boo-doo' or 'boo-doh' (French, nearly) or 'boh-doh' (English). After Émile Baudot. Interesting video, thank you.

Seems to me the non-self-encipherment property could have been eliminated without making the machine more complicated, just by eliminating the reflector and only passing the signal through the rotors in one direction. But would that have had other undesirable effects on the security?

Alas, the very poor audio recording in this video makes it extremely difficult to watch. I highly recommend getting a better microphone for recording and re-doing this video from scratch. Best of luck!

❤

Very interesting, how many permutations of the initial wiring could there have been? I am intrigued that the British didn't try the A-A, B-B one. Is it 26x26x26? I ask just because it is probably one of the easier challenges amongst very difficult ones. I can just imagine someone asking them in a meeting whether they had tried every permutation and them saying they had, even though they hadn't tried the one that few would think to try.

IMHO, this guy is being punked repeatedly by this dynamic female. He's ok with it. I'd speak up.

Thank you for that cc41 clothing description. It was shocking to learn that existed.

Monkey arms if it was the Brixton Walk.

Pore sound

Lousy audio. I can't listen. Poor. Poor. Poor.

lol where you Imagine yourself as Bert the chimney sweep… or Danny Dyer … :)

Could do with a diagram - I believe it’s a Lee Enfield Mk4 .003 being referred to. I don’t know about the “piling swivel”, which in my case I will most certainly not be getting. Reed was criticised for accepting a K: wood he accept Charles 3’s?

8:09 Wouldn't a more elegant solution have been to add an extra letter to the system that stood for repeating the entered letter?

Thanks for adding actual captions for the Deaf. makes it easier to follow

How did they decide which rotational position to put the rotors in when first inserting them?

With stuff like the plugboard, you say it was a weaker than a more complex plugboard, but how much did it add over no plugboard? Likewise with the reflector, it was weaker than the more complex setup of dual paths through the rotors, but how much did it add over only going through the rotors once? Overall were any of these things so bad that it would have been more secure if they had left the feature out entirely?

The irony is supreme 👍

Fantastic! Didn't actually UNDERSTAND most of it but then I love listening to people who obviously know things that I don't!!

Surely the inability of the to not encipher a letter as it's self comes from the plug board as when the plug is pushed in it disconnects the circuit to the lamp of the key that is pressed .

I run a fairly successful youtube channel. This is an excellent video....but i bet youd get about 5 times as many views with a $10 lav mic. People click off of videos with terrible audio. Cheers and best of luck!

How can you allow such poor audio quality?

76-bit encryption, that really puts it into context how clever this machine was. Up until the 1990s it was common to only use 40-bit, which was trivial to break. These days we use 128 or 256.

You think you're so smart. Thèn go back in time and do it. Oh, you can't 😮 YUCK-TUBE R boy 😂😂😂😂

Matthew Goode has a lovely speaking voice! He was the right person to read this letter.

Хороший ролик.!!!

The Polish never got enough credit in this area.

PLEASE get a clip on microphone for your presenter, the sound is awful

I'm left wondering why it took so long...

Quit watching when it became impossible to understand anything.

How did the Germans encode the umlauts? Did they bother with the 'eszett' (ligature)?

Echo... echo...echo... Did you guys not hear how horrible his voice sounded when you were editing this video? Need to hang some blankets on the walls behind the camera or something, it sounds like he talking inside an empty tim can...

The holes on the front are how you modify the keyboard to the entry motor. The physical hardware also had to be identical to undo the messages, and it can’t be edited, it had to be identical. If you’re making a permanent version on a mass scale, why not use the easiest pattern to build?

The British were always walking a tightrope when it came to the information they got from the code breaking. If they used it too much it would tip off the Germans. If they used it too little lives would be lost.

Regardless of how you set up the plugboard, it is still only a simple substitution cipher. It has nothing to do with pairs. The main problems for the Enigma is that you solve them in order, first you get the wheel order and wheel settings using a number of Bomb machine equivalents. The rotor combinations do require brute forces, but you only need about 1000 12-wheel machines to do a full parallel brute force search on that part. Each of these machines figure out the ring setting using current for parallell processing (back in the early 2000s when Enigma code breaking details were first release, you could run the program that simulates the Bomb at approximately the same speed as the real machine, so about 10-15 minutes to find a possible ring setting, which was read out and checked). Once you have the ring setting, you have a message in German that is encrypted using a substitution cipher, with several known substitutions because of the cribs. And this is there the pairing comes in, as you get a free substitution with each one you have.

I believe there were special variants that had a printer instead of the light board, and that printer could be place in another room. That way the operator(s) never saw the decrypted message.

Really interesting to get an overview of why the flaws were there. the human errors that they prevented and the complexity avoided. Looking forward to the explanations of how procedures would have been able to obfuscate some of the flaws. But in the end, I believe the Germans knew that the machine could be cracked, they just did not think that someone would spend the equivalent resource of the Manhattan Project or the 1960s Moon program on cracking it. But the Allies did have resources available that the Germans simply did not, and could afford to do two of those during the war.

What if the plug-board was between the rotots and the lamps, od the keyboard and the rotors. Then you could encrypt a letter to it self.

I recommend Simon Singhs book about Enigma, even I understood it, although I read somewhere that you could read everything about Bletchley Park and still not know what really went on.

The worst security flaw is as you said, the human factor. Had a less predictable style of daily broadcast been used like robin Williams good morning Vietnam ( and yes i know the Germans were too uptight for that level of nonsense) it would have been far harder to break enigma.

Bletchley park should be a le to afford a proper microphone.

Did the Germans pad the start and end of their messages with random words like the Americans did? How big a factor is this? Would encrypting messages twice using two Enigmas with different settings have helped, like triple DES?

1. No Wifi 2. No Blu Tooth 3. Can't install Apps 4. No USB support 5. Can't change the desktop theme Otherwise it's pretty good.

My wifes grandfather knew and worked with Tommy on many things . The post office back then was far more than the joke it is now

It is an enigma to me why you did not use a better audio setup.

Biggest one was the operators

INT-int-ER-er-EST-est-ING-ing IN-in-FOR-for-MA-ma-TION-tion.

The entry wheel is the equivalent of password123.

A suggestion "for the next presentation video"? Demonstrate a short example - maybe a sentence such as "Good morning, how are you?" Anything really. Demonstrate how the initial rotor settings would be set, how the code book interacted - and then demonstrate how it would be received, if possible. A short "tutorial", if you will.

"Very few of them left." "When you say, 'very few' - ten, twenty?" "Maybe three-hundred-and-fifty". ??????? I believe the wrong rotor settings were used when defining and translating "very few".

I had no idea Bletchley Park had a channel, and I'm now subscribed. I've heard this and don't know if it's true; there was a German guardpost in North Africa (I've heard it described as being in the canyon south of El Alemain) that the British deliberately left alone. The thinking supposedly was that no attack was possible through that area, so it was of limited military importance. However, every day the German soldiers would dutifully send the encrypted message "[Today's date] Nothing to report, HH" which the British would dutifully intercept and send to Bletchley Park to help with cribbing attacks. I must ask, does anyone know if this is true? As a former security guard, I know all too well the tedium of guarding something that nobody is interested in, and dutifully filling out the same paperwork day after day. It tickles me pink to imagine this paperwork helps undermine the war effort of an entire nation.