The configurations for decoding the ZODIAC-408 cipher as well as Part two of the BEALE ciphers are almost identical: For both setups we use an 8-gram character language model trained on a subset of the English Gigaword corpus (Parker et al., 2011).
the goal of UNRAVEL is not to provide a solver for every single encipherment method, but rather to provide reusable tools that can be applied to unsupervised learning for machine translation.