We redesigned MysteryTwister, enjoy! Feedback
Explore Challenges
The Heavy T52 Sturgeon Challenge — Part 1 Level 3
by Nils Kopal, published on 2019-09-30
The Siemens and Halske T52 was a family of German teleprinter encryption devices used during WW2. This challenge is part of a series of new heavier challenges with T52. In this challenge, you need to recover the plaintexts from T52D ciphertexts "in-depth". The key is unknown.