Hoping the Fediverse remembers: a while ago I saw a page someone put online about reversing Reed-Solomon codes within the context of flash or eFuse like memory. In other words: you have an existing block of data protected by a RS code, and you want to change a field in that data block but still have the RS code match. Specifically: you can make bits 1->0 in either the RS code or dummy blocks you don't care about, but you can't make them go 0->1. Has anyone seen the page resembling that, or anything that could point me to an approach for this that is better than brute-forcing all bit combinations?
