Lasry, GeorgeDesenclos, CamillePierrot, Cécile2026-06-152026-06-152026-06-221736- 6305https://hdl.handle.net/10062/122071This document describes the CrypTool Transcriber and Solver (CTTS). It enables the transcription, decipherment, and analysis of historical ciphered documents. CTTS provides an end-to-end integrated solution for all those stages, with a convenient graphical user interface. CTTS has been successfully employed to transcribe and decipher dozens of collections of historical ciphered documents.enAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttps://creativecommons.org/licenses/by/4.0/TranscriptionCryptanalysishomophonic ciphershistorical ciphersCTTS – CrypTool Transcriber and SolverArticle