Is there a name for that? Steganography? Watermarking? Both don’t specifically describe the idea of swapping words or homographs (rn = m) to embed the name of t

Is there a name for that? Steganography? Watermarking? Both don’t specifically describe the idea of swapping words or homographs (rn = m) to embed the name of the person who received a copy of a document to bust the leaker.