oddly I was reading this story yesterday because someone linked to an item of clothes from a shop which also contained a silk code scarf: https://adversarialfas

oddly I was reading this story yesterday because someone linked to an item of clothes from a shop which also contained a silk code scarf: https://adversarialfashion.com/products/wwii-code-cipher-scarf https://adversarialfashion.com/products/wwii-code-cipher-sca... it's unclear from the images in the shop but the code isn't the circuit diagram-ish things but a table in the middle, which reproduces this, an actual SOE silk code: http://www.jproc.ca/crypto/silkcode_chart_b.jpg http://www.jproc.ca/crypto/silkcode_chart_b.jpg This is apparently a 'Worked Out Key' cipher, not a OTP as mentioned in the article, but both were in use due to Leo Marks https://en.wikipedia.org/wiki/Leo_Marks#:~:text=Developments%20of%20cryptographic%20practice,-One%20of%20Marks's&text=Cryptographic%20security%20was%20enhanced%20by,already%20in%20use%20at%20Bletchley https://en.wikipedia.org/wiki/Leo_Marks#:~:text=Developments.... (in fact, here's a photo of Leo with one of these code tables https://www.historynet.com/was-this-the-uks-worst-spy-failure-of-world-war-ii/leo-marks/ https://www.historynet.com/was-this-the-uks-worst-spy-failur... )