Codebreaking and other cryptomalarky

[Ladysavage]

So the other day i stuck on The Imitation Game (despite having a mild allergy to Keira Knightly) and Boobshark ADORED it. He's now got hold of the Code Book by Simon Singh and we watched the Bletchley Circle. So is there anything else i need to point his inquisitive young mind in the direction of be fore he runs out of enthusiasm for the topic?

[Martin Y]

Although I've read other stuff about Bletchley Park I honestly haven't found anything better than Simon Singh's book.

Just finished Dermot Turing's(!) book The Codebreakers of Bletchley Park and it's an easy read which is intended more as a biography of the people involved but does contain a lot of good techy description of the problems they worked on and, being a new book it has more info about e.g. after the war which has gradually emerged.

PS the Turing book also zooms through the previous history of British code breaking so also has WW1 and the Zimmerman telegram which is a super story.

[bolo]

Dermot Turing is Alan Turing's nephew. Coincidentally, I have corresponded with him about genealogy as we are distant cousins.

[Martin Y]

Dermot Turing is Alan Turing's nephew. Coincidentally, I have corresponded with him about genealogy as we are distant cousins.

If an opportunity presents itself, your distant cousin might like to hear this total stranger liked his book.

[Boustrophedon]

https://www.cryptomuseum.com/

[Boustrophedon]

And...

https://www.cryptomuseum.com/kits/enigma/index.htm

[FredM]

There’s a free 3D virtual tour of Bletchley Park Museum (National Museum of Computing) here.

[Millennie Al]

A visit to Beletchley Park might suit (though obviously not very soon) - there's quite a lot to see there. And it's within walking distance from the train station.

[tenchboy]

I did my BT apprenticeship training courses at Bletchley Park: regularly did the walk from the station to the house; they did a cheap evening return to London: that was when I first saw Eddie and the Hot Rods Live at the Marquee.
Happy Days.

[Little waster]

If he’s into his SF there’s also Neal Stephenson’s Cryptonomicon.

It’s very Neal Stephenson though as most his work tends to be.

[TimW]

And...

https://www.cryptomuseum.com/kits/enigma/index.htm

It's a shame that the rotors are just replaced by alphanumeric displays, the encryption largely ends up being a black box.

Maybe there would be some way of representing the electrical connections on a better display?

[jimbob]

My kids liked this...

https://www.maths.manchester.ac.uk/cryp ... mpetition/

My eldest was 13 for the first one. She's quite competitive and took great pleasure beating her maths teachers to the answers (similarly for escape rooms where she was in Y10)

[basementer]

My kids liked this...

https://www.maths.manchester.ac.uk/cryp ... mpetition/

My eldest was 13 for the first one. She's quite competitive and took great pleasure beating her maths teachers to the answers (similarly for escape rooms where she was in Y10)

Southampton have been running cipher competitions even longer than Manchester:
https://www.cipherchallenge.org/

[Allo V Psycho]

When I were a lad, I liked what I called 'pronounceable cyphers', where the alphabet was enciphered on a grid with consonants on one axis and vowels on the other. By choosing the consonants you get outcomes which sound vaguely like languages.
So you could murmur the Italianate Barorale Ribaba! at your teachers or go for the more Polynesian Kutetubo tikuku!


I still mutter Barorale ribaba, sometimes, half a century later.

If boobshark is into Excel,or wants to be, then VLOOKUP tables provide rapid en- and decyphering possibilities.

[Martin Y]

Thanks to this thread I have revisited the thing that always puzzled me about Turing's Bombe machines (what the actual test was that they applied as they stepped through all the available rotor settings, in order to stop whenever they found a possible solution) and I think I now get it. So that's nice. It's really pleasingly cunning.