Lorenz SZ42 : Rare footage of cipher attachment running

This is some very rare footage of the Lorenz SZ42 actually running for real. This was a cipher attachment used by the German army during World War 2 and there are only four of these machine still available to see today.
This video is of the Lorenz which is currently on display at Bletchley Park. It was r at the Heinz Nixdorf Computer Museum in Paderborn, Germany as part of the Cipher Event in 2007 when a message was transmitted for the rebuilt Colossus at The National Museum of Computing to break.

[@Novice-bz3ri]

Very interesting. You can see the wheel stuttering and the different rate at which the different wheels rotate, depending on how many connections each wheel has. All the explanations are suddenly visible in real time.

[@CaptainCalculus]

Wow, thank you for uploading, my great uncle was one of the people who built Colossus

[@MartinGillow]

You are very welcome, I was so excited to find this rare footage of the Lorenz actually running I had to share. I hope you have tried my Colossus and Lorenz simulators on my website too. Do you mind me asking the name of your great uncle?

[@surplus2720]

Coool

[@Chris47368]

You must have a really cool uncle then 😀

[@JohnSmith-eo5sp]

This machine is based on the Vernam Cipher machine patented in the USA in 1919. But whereas that apparatus used relay logic to accomplish it XOR logic based encryption, this Lorenz machine used all mechanical logic based on rotating disks

[@andrebrs1381]

Precision German engineering!

[@2adamast]

Thank you

[@carbo73]

a marvel. I saw this machine in Bletchley back in 2014. Not working, of course.

[@user-fl6te2eq7h]

Более подробно бы , я до сих пор не понимаю как она работает , но крайне интересно

[@virtualcolossus]

Take a look at this video by Dr James Grime which does a good job of explaining the basics of how it works: ruclips.net/video/GBsfWSQVtYA/видео.html . Then, see it working and try it out for yourself with my virtual simulation of the Lorenz SZ42 at lorenz.virtualcolossus.co.uk/

[@harryrees32]

Totally useless video without a description !

[@JohnSmith-eo5sp]

It is machine artistry without any messages! You know how propagandistic the Brits are.

[@leonardopoli7714]

lorenz is love, lorenz is life