I could, but I'd have to set adler32==crc32 (doable), otherwise the md5 bruteforce would be too difficult. In fact, I could do this fairly quickly without need

I could, but I'd have to set adler32==crc32 (doable), otherwise the md5 bruteforce would be too difficult. In fact, I could do this fairly quickly without needing to recompute much at all...