ENIGMA M4 - Breaking German Navy Ciphers

Results of the project that was breaking Enigma messages found in a sunken U-Boot.

to crypto enigma history ww2 ... on 22 September 2020

Frode Weierud's CryptoCellar

Lots of Enigma-related stuff, including some finds of undecrypted messages and a good description of how to break it using modern statistical methods.

to cryptography enigma history ww2 ... on 17 January 2015

Enigma Cipher Machine

With lots of pictures of the original hardware.

to cryptography enigma history mechanica ww2 ... on 17 January 2015

ENIGMA M4 - Breaking German Navy Ciphers

"The "Breaking German Navy Ciphers" Project was founded in 2012. The goal is to break original radio messages, which were encoded with the famous German ENIGMA cipher machine. Up to now, we've succeeded in deciphering over 60 original World War II Enigma I M3 and M4 messages." This includes a batch of messages found in a sunken U-boat in the mid-80s -- surprisingly readable given 40 years underwater!

to cryptography enigma history ww2 ... on 17 January 2015

The Enigma cipher machine

"These pages give an introduction to substitution ciphers and then go on to explain exactly how the Enigma machine worked and how it was used." A good description of how to actually implement it in software.

to cryptography enigma history ww2 ... on 17 January 2015

Christos military and intelligence corner

The lesser-known bits of WW2 cryptography, with an interesting collection of documents -- e.g. the Allied reports on what the Germans and Japanese had achieved in terms of cryptanalysis.

to cryptanalysis cryptography etext history ww2 ... on 03 October 2014

MIT Radiation Lab series

Scanned versions of the books that the MIT Rad Lab produced after the end of WW2 about their work on radar (as referenced in documents on the Manchester Baby computer).

to electronics etext history mit radar radio retrotech ww2 ... on 09 February 2014

U-boat Archive

Can't remember how I got here, but the US reports on captured U-boats are quite interesting. (They thought the hulls were neat but the plumbing wasn't very good.)

to boats history retrotech submarines ww2 ... on 28 May 2012

Collecting, Restoring and Using Vintage Radio

Good collection of WW2 radios -- from all over the world.

to history r1155 radio retrotech ww2 ... on 06 May 2012

MI6

The Voluntary Interceptors.

to history radio ww2 ... on 04 June 2011