Updated: 2022-09-04 I took a very long time to post about the last Australian Signals Directorate (then DSD) decryption, so this time I’ll be a lot more punctual. This article was published today announcing that ASD have collaborated to release a new 50c coin containing a decryption challenge. The new ASD 50c coin That looks like fun! Typing in the letters and numbers from the image certainly wasn’t, but after that. Of course, I’ll be solving the entire thing with R. Apparently there’...