Sounds a bit like a simplified "Chaffing and Winnowing"[1], where the chaff identification is pre-shared through your custom compression parameters. There was

Sounds a bit like a simplified "Chaffing and Winnowing"[1], where the chaff identification is pre-shared through your custom compression parameters. There was a HN story[2] on Chaffinch[2], which is where I came across teh idea. [1] https://en.wikipedia.org/wiki/Chaffing_and_winnowing https://en.wikipedia.org/wiki/Chaffing_and_winnowing [2] https://news.ycombinator.com/item?id=14408757 https://news.ycombinator.com/item?id=14408757 [3] https://www.cl.cam.ac.uk/~rnc1/Chaffinch.html#Chaffing https://www.cl.cam.ac.uk/~rnc1/Chaffinch.html#Chaffing