papersSEP 12 04:00 UTC
CARTS: autoregressive rank transcoding enables full-capacity keyed text steganography
A new arXiv paper introduces CARTS, a method that uses autoregressive language models to hide a payload text inside a stegotext of the same token length. It preserves per-position rank information across contexts, which the authors formalize as Contextual Autoregressive Rank Transcoding. The approach targets full-capacity keyed text encoding, meaning the hidden message can occupy the entire token sequence rather than a limited subset.