Details of Alan Turing’s Voice Encryption System

A cache of Alan Turing's wartime papers, including his 'Delilah' voice-encryption system, was auctioned in London. The papers, containing Turing's handwriting, provide insight into his top-secret project. This discovery is significant for its historical value and cryptographic significance. Engineers can learn from Turing's work on voice encryption systems. The papers were preserved by Bayley, who kept them until his death in 2020.