using the command line:
./dc3dd if=/dev/sdb ofs=junk.000 ofsz=10000K hash=md5 log=logfile hlog=hashlog
reading the documentation, one assumes that a hash file with segment hashes should be created by virtue of the hlog option.
however, only the final hash is created.
in order to get segmented hashes, the hofs= option needs to be used, but we don't need to validate the segments. just want segmented values of the first output calculation to the hashlog.