The LFSR used within JEnt v2.2.0 is linear, and thus can be modeled using matrix multiplication. This idea is explored in the paper JEnt v2.2.0 LFSR Conditioning Analysis, which was presented in the CMUF Entropy Working Group using this presentation.
The code included in this repository can be used to generate the matrices presented in this paper, model all the raw noise symbols in a range and then produce 1 million bytes of conditioned output per analyzed raw noise symbol by repeatedly LFSR processing the existing state, and the filtermass-testing.tar.xz file, which contains the JEnt v2.2.0 and v3.6.3 code that was used in filter mass testing.
The hprime-results.tar.xz file contains the raw results associated with the distribution (cited in Section 4.2.2 in the associated paper).
Mail josh@keypair.us with comments, questions, etc.