Entry for the Hackaday 1kB Challenge

It looks very impressive though.
👍🏻

Did see the challange and was thinking of the project I started for attiny13 (show temp and humidity), would definitely qualify size wise but I have to much work left and no time so I will pass on it.
As for this one, I can see that you can change left side a bit like a rotor or so but don't get the right side. In the first movie you hit "8" and in the second it's "7" so ether you changed the "next" button or you encrypting 7 instead of 8
Did quickly scribble down the numbers as they pass by

74  79
75  71
76  78
77  73
78  76
79  74
80  72
81  75
82  70
83  77
84  79
85  71
86  78
87  73
88  76
89  74
89  00  < only right changed?
90  72
90  00  < only right changed?
       < what happened to 91-100?
101 75
102 70
103 77
104 79
105 71
106 78
107 73
107 00  < only right changed?


Nope, dunno what it is (yet) and knowing that the rightmost digit wrong doesn't help in the guessing game here.

737 views and 33 likes in 6 hours, I wonder who picked this video up...

The Enigma Z or Z30 is a very basic machine, 4 movable wheels, the one on the left is a reflector, all have ring settings, the contacts on the entry rotor are in numerical order. The stepping mechanism is based on levers and suffers from the double stepping anomaly. That behavior is shown in the Instagram videos. There is no plugboard. The wiring of the rotors is known. There are three of them in the museum of FRA, the National Defence Radio Establishment in Sweden.

Being numbers only, the Kim Uno has enough buttons to simulate it, hopefully in under 1kB of 6502 code...

All the information that is know about them can be found:
www.tandfonline.com/doi/full/10.1080/01611194.2015.1055387
www.tandfonline.com/doi/abs/10.1080/0161-110491892845
www.cryptomuseum.com/crypto/enigma/z/
de.wikipedia.org/wiki/Enigma-Z

sci-hub.cc/ for the win...

The paper model for the Enigma Z30 machine rotors is now complete.

It is available here: github.com/arduinoenigma/Mystery6502Machine

I just tried to encrypt a sequence, same settings as above, starting position 0000. The output was:

28269 22392 20937 20028 89093 06643 91803 84844

Can you guess the input sequence that generated the cryptosequence above?

Keep in mind that this is an Enigma machine, so the rotors are moved first and then electricity applied. If the wheels are at 0000, the first key will be encrypted with rotor values 0001

Typing the above sequence in the machine with the initial position restored yields the original number sequence!

To confirm that numbers are being correctly encrypted:

Set the machine rotor types and ring settings by direct data entry of address 0050. The settings above translate to [AD] 0050 [DA] 01+ 02+ 03+ 01+ 01+ 01+ 01+

Execute the enigma application by typing [AD] 0500 [GO]

The display will change to 4321 00

The numbers on the left are the rotors, including the settable reflector on the left. They can be changed with the [AD]/[C] [DA]/[D] [PC]/[E] and [+]/[F]

The numbers on the right are the input and output values. Since a number can never encrypt to itself, when it shows 00, the machine is waiting for a keypress to encrypt it.

Press the [8] key. The right numbers will show 81, write down the number 1. This shows that after moving the rotors 8 encrypts to a 1. Note that the rotors now show 4322, that is the value to enter in the excel spreadsheet to verify that 8 encrypts to 1. Conversely, an 8 encrypts to a 1.

If the following values are entered in the excel spreadsheet (note the 4 is fixed and it represents the reflector)
4123
1111
4322
A Key In value of 8 gives a Key Out value of 1 and viceversa.